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0.31.0
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@@ -176,38 +176,6 @@ jobs:
|
||||
pushd build
|
||||
make tests
|
||||
popd
|
||||
# Build using CentOS 8
|
||||
# This build is static, dependencies are bundled in the Falco binary
|
||||
"build/centos8":
|
||||
docker:
|
||||
- image: centos:8
|
||||
steps:
|
||||
- checkout
|
||||
- run:
|
||||
name: Update base image
|
||||
command: dnf update -y
|
||||
- run:
|
||||
name: Install dependencies
|
||||
command: dnf install gcc gcc-c++ git make cmake autoconf automake pkg-config patch libtool elfutils-libelf-devel diffutils kernel-devel kernel-headers kernel-core clang llvm which -y
|
||||
- run:
|
||||
name: Prepare project
|
||||
command: |
|
||||
mkdir build
|
||||
pushd build
|
||||
cmake -DBUILD_BPF=On -DUSE_BUNDLED_DEPS=On ..
|
||||
popd
|
||||
- run:
|
||||
name: Build
|
||||
command: |
|
||||
pushd build
|
||||
KERNELDIR=/lib/modules/$(ls /lib/modules)/build make -j4 all
|
||||
popd
|
||||
- run:
|
||||
name: Run unit tests
|
||||
command: |
|
||||
pushd build
|
||||
make tests
|
||||
popd
|
||||
# Build using our own builder base image using centos 7
|
||||
# This build is static, dependencies are bundled in the Falco binary
|
||||
"build/centos7":
|
||||
@@ -394,6 +362,12 @@ jobs:
|
||||
command: |
|
||||
FALCO_VERSION=$(cat /build/release/userspace/falco/config_falco.h | grep 'FALCO_VERSION ' | cut -d' ' -f3 | sed -e 's/^"//' -e 's/"$//')
|
||||
/source/falco/scripts/publish-bin -f /build/release/falco-${FALCO_VERSION}-x86_64.tar.gz -r bin-dev -a x86_64
|
||||
- run:
|
||||
name: Publish bin-static-dev
|
||||
command: |
|
||||
FALCO_VERSION=$(cat /build-static/release/userspace/falco/config_falco.h | grep 'FALCO_VERSION ' | cut -d' ' -f3 | sed -e 's/^"//' -e 's/"$//')
|
||||
cp -f /build-static/release/falco-${FALCO_VERSION}-x86_64.tar.gz /build-static/release/falco-${FALCO_VERSION}-static-x86_64.tar.gz
|
||||
/source/falco/scripts/publish-bin -f /build-static/release/falco-${FALCO_VERSION}-static-x86_64.tar.gz -r bin-dev -a x86_64
|
||||
"publish/packages-deb-dev":
|
||||
docker:
|
||||
- image: docker.io/debian:stable
|
||||
@@ -508,6 +482,12 @@ jobs:
|
||||
command: |
|
||||
FALCO_VERSION=$(cat /build/release/userspace/falco/config_falco.h | grep 'FALCO_VERSION ' | cut -d' ' -f3 | sed -e 's/^"//' -e 's/"$//')
|
||||
/source/falco/scripts/publish-bin -f /build/release/falco-${FALCO_VERSION}-x86_64.tar.gz -r bin -a x86_64
|
||||
- run:
|
||||
name: Publish bin-static
|
||||
command: |
|
||||
FALCO_VERSION=$(cat /build-static/release/userspace/falco/config_falco.h | grep 'FALCO_VERSION ' | cut -d' ' -f3 | sed -e 's/^"//' -e 's/"$//')
|
||||
cp -f /build-static/release/falco-${FALCO_VERSION}-x86_64.tar.gz /build-static/release/falco-${FALCO_VERSION}-static-x86_64.tar.gz
|
||||
/source/falco/scripts/publish-bin -f /build-static/release/falco-${FALCO_VERSION}-static-x86_64.tar.gz -r bin -a x86_64
|
||||
"publish/packages-deb":
|
||||
docker:
|
||||
- image: docker.io/debian:stable
|
||||
@@ -618,7 +598,6 @@ workflows:
|
||||
- "build/ubuntu-focal"
|
||||
- "build/ubuntu-focal-debug"
|
||||
- "build/ubuntu-bionic"
|
||||
- "build/centos8"
|
||||
- "build/centos7"
|
||||
- "build/centos7-debug"
|
||||
- "tests/integration":
|
||||
@@ -711,6 +690,7 @@ workflows:
|
||||
- falco
|
||||
- test-infra
|
||||
requires:
|
||||
- "build/musl"
|
||||
- "rpm/sign"
|
||||
filters:
|
||||
tags:
|
||||
|
||||
94
CHANGELOG.md
94
CHANGELOG.md
@@ -1,5 +1,99 @@
|
||||
# Change Log
|
||||
|
||||
## v0.31.0
|
||||
|
||||
Released on 2022-01-31
|
||||
|
||||
### Major Changes
|
||||
|
||||
|
||||
* new: add support for plugins to extend Falco functionality to new event sources and custom fields [[#1753](https://github.com/falcosecurity/falco/pull/1753)] - [@mstemm](https://github.com/mstemm)
|
||||
* new: add ability to set User-Agent http header when sending http output. Provide default value of 'falcosecurit/falco'. [[#1850](https://github.com/falcosecurity/falco/pull/1850)] - [@yoshi314](https://github.com/yoshi314)
|
||||
* new(configuration): support defining plugin init config as a YAML [[#1852](https://github.com/falcosecurity/falco/pull/1852)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
|
||||
|
||||
### Minor Changes
|
||||
|
||||
* rules: add the official Falco ECR repository to rules [[#1817](https://github.com/falcosecurity/falco/pull/1817)] - [@calvinbui](https://github.com/calvinbui)
|
||||
* build: update CircleCI machine image for eBPF tests to a newer version of ubuntu [[#1764](https://github.com/falcosecurity/falco/pull/1764)] - [@mstemm](https://github.com/mstemm)
|
||||
* update(engine): refactor Falco engine to be agnostic to specific event sources [[#1715](https://github.com/falcosecurity/falco/pull/1715)] - [@mstemm](https://github.com/mstemm)
|
||||
* build: upgrade civetweb to v1.15 [[#1782](https://github.com/falcosecurity/falco/pull/1782)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* update: driver version is 319368f1ad778691164d33d59945e00c5752cd27 now [[#1861](https://github.com/falcosecurity/falco/pull/1861)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* build: allow using local libs source dir by setting `FALCOSECURITY_LIBS_SOURCE_DIR` in cmake [[#1791](https://github.com/falcosecurity/falco/pull/1791)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* build: the statically linked binary package is now published with the `-static` suffix [[#1873](https://github.com/falcosecurity/falco/pull/1873)] - [@LucaGuerra](https://github.com/LucaGuerra)
|
||||
* update!: removed "--alternate-lua-dir" cmdline option as lua scripts are now embedded in Falco executable. [[#1872](https://github.com/falcosecurity/falco/pull/1872)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* build: switch to dynamic build for the binary package (`.tar.gz`) [[#1853](https://github.com/falcosecurity/falco/pull/1853)] - [@LucaGuerra](https://github.com/LucaGuerra)
|
||||
* update: simpleconsumer filtering is now being done at kernel level [[#1846](https://github.com/falcosecurity/falco/pull/1846)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* update(scripts/falco-driver-loader): first try to load the latest kmod version, then fallback to an already installed if any [[#1863](https://github.com/falcosecurity/falco/pull/1863)] - [@leogr](https://github.com/leogr)
|
||||
* refactor: clean up --list output with better formatting and no duplicate sections across event sources. [[#1816](https://github.com/falcosecurity/falco/pull/1816)] - [@mstemm](https://github.com/mstemm)
|
||||
* update: embed .lua files used to load/compile rules into the main falco executable, for simplicity and to avoid tampering. [[#1843](https://github.com/falcosecurity/falco/pull/1843)] - [@mstemm](https://github.com/mstemm)
|
||||
* update: support non-enumerable event sources in gRPC outputs service [[#1840](https://github.com/falcosecurity/falco/pull/1840)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* docs: add jasondellaluce to OWNERS [[#1818](https://github.com/falcosecurity/falco/pull/1818)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* chore: --list option can be used to selectively list fields related to new sources that are introduced by plugins [[#1839](https://github.com/falcosecurity/falco/pull/1839)] - [@loresuso](https://github.com/loresuso)
|
||||
* update(userspace/falco): support arbitrary-depth nested values in YAML configuration [[#1792](https://github.com/falcosecurity/falco/pull/1792)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* build: bump FakeIt version to 2.0.9 [[#1797](https://github.com/falcosecurity/falco/pull/1797)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* update: allow append of new exceptions to rules [[#1780](https://github.com/falcosecurity/falco/pull/1780)] - [@sai-arigeli](https://github.com/sai-arigeli)
|
||||
* update: Linux packages are now signed with SHA256 [[#1758](https://github.com/falcosecurity/falco/pull/1758)] - [@twa16](https://github.com/twa16)
|
||||
|
||||
|
||||
### Bug Fixes
|
||||
|
||||
* fix(scripts/falco-driver-loader): fix for SELinux insmod denials [[#1756](https://github.com/falcosecurity/falco/pull/1756)] - [@dwindsor](https://github.com/dwindsor)
|
||||
* fix(scripts/falco-driver-loader): correctly clean loaded drivers when using `--clean` [[#1795](https://github.com/falcosecurity/falco/pull/1795)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* fix(userspace/falco): in case output_file cannot be opened, throw a falco exception [[#1773](https://github.com/falcosecurity/falco/pull/1773)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* fix(userspace/engine): support jsonpointer escaping in rule parser [[#1777](https://github.com/falcosecurity/falco/pull/1777)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* fix(scripts/falco-driver-loader): support kernel object files in `.zst` and `.gz` compression formats [[#1863](https://github.com/falcosecurity/falco/pull/1863)] - [@leogr](https://github.com/leogr)
|
||||
* fix(engine): correctly format json output in json_event [[#1847](https://github.com/falcosecurity/falco/pull/1847)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* fix: set http output contenttype to text/plain when json output is disabled [[#1829](https://github.com/falcosecurity/falco/pull/1829)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* fix(userspace/falco): accept 'Content-Type' header that contains "application/json", but it is not strictly equal to it [[#1800](https://github.com/falcosecurity/falco/pull/1800)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* fix(userspace/engine): supporting enabled-only overwritten rules [[#1775](https://github.com/falcosecurity/falco/pull/1775)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
|
||||
|
||||
### Rule Changes
|
||||
|
||||
* rule(Create Symlink Over Sensitive File): corrected typo in rule output [[#1820](https://github.com/falcosecurity/falco/pull/1820)] - [@deepskyblue86](https://github.com/deepskyblue86)
|
||||
* rule(macro open_write): add support to openat2 [[#1796](https://github.com/falcosecurity/falco/pull/1796)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* rule(macro open_read): add support to openat2 [[#1796](https://github.com/falcosecurity/falco/pull/1796)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* rule(macro open_directory): add support to openat2 [[#1796](https://github.com/falcosecurity/falco/pull/1796)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* rule(Create files below dev): add support to openat2 [[#1796](https://github.com/falcosecurity/falco/pull/1796)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* rule(Container Drift Detected (open+create)): add support to openat2 [[#1796](https://github.com/falcosecurity/falco/pull/1796)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* rule(macro sensitive_mount): add containerd socket [[#1815](https://github.com/falcosecurity/falco/pull/1815)] - [@loresuso](https://github.com/loresuso)
|
||||
* rule(macro spawned_process): monitor also processes spawned by `execveat` [[#1868](https://github.com/falcosecurity/falco/pull/1868)] - [@Andreagit97](https://github.com/Andreagit97)
|
||||
* rule(Create Hardlink Over Sensitive Files): new rule to detect hard links created over sensitive files [[#1810](https://github.com/falcosecurity/falco/pull/1810)] - [@sberkovich](https://github.com/sberkovich)
|
||||
* rule(Detect crypto miners using the Stratum protocol): add `stratum2+tcp` and `stratum+ssl` protocols detection [[#1810](https://github.com/falcosecurity/falco/pull/1810)] - [@sberkovich](https://github.com/sberkovich)
|
||||
* rule(Sudo Potential Privilege Escalation): correct special case for the CVE-2021-3156 exploit [[#1810](https://github.com/falcosecurity/falco/pull/1810)] - [@sberkovich](https://github.com/sberkovich)
|
||||
* rule(list falco_hostnetwork_images): moved to k8s_audit_rules.yaml to avoid a warning when usng falco_rules.yaml only [[#1681](https://github.com/falcosecurity/falco/pull/1681)] - [@leodido](https://github.com/leodido)
|
||||
* rule(list deb_binaries): remove `apt-config` [[#1860](https://github.com/falcosecurity/falco/pull/1860)] - [@Andreagit97](https://github.com/Andreagit97)
|
||||
* rule(Launch Remote File Copy Tools in Container): add additional binaries: curl and wget. [[#1771](https://github.com/falcosecurity/falco/pull/1771)] - [@ec4n6](https://github.com/ec4n6)
|
||||
* rule(list known_sa_list): add coredns, coredns-autoscaler, endpointslicemirroring-controller, horizontal-pod-autoscaler, job-controller, node-controller (nodelifecycle), persistent-volume-binder, pv-protection-controller, pvc-protection-controller, root-ca-cert-publisher and service-account-controller as allowed service accounts in the kube-system namespace [[#1760](https://github.com/falcosecurity/falco/pull/1760)] - [@sboschman](https://github.com/sboschman)
|
||||
|
||||
|
||||
### Non user-facing changes
|
||||
|
||||
* fix: force-set evt.type for plugin source events [[#1878](https://github.com/falcosecurity/falco/pull/1878)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* fix: updated some warning strings; properly refresh lua files embedded in falco [[#1864](https://github.com/falcosecurity/falco/pull/1864)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* style(userspace/engine): avoid creating multiple versions of methods only to assume default ruleset. Use a default argument instead. [[#1754](https://github.com/falcosecurity/falco/pull/1754)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* add raft in the adopters list [[#1776](https://github.com/falcosecurity/falco/pull/1776)] - [@teshsharma](https://github.com/teshsharma)
|
||||
* build: always populate partial version variables [[#1778](https://github.com/falcosecurity/falco/pull/1778)] - [@dnwe](https://github.com/dnwe)
|
||||
* build: updated cloudtrail plugin to latest version [[#1865](https://github.com/falcosecurity/falco/pull/1865)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* replace ".." concatenation with table.concat [[#1834](https://github.com/falcosecurity/falco/pull/1834)] - [@VadimZy](https://github.com/VadimZy)
|
||||
* fix(userspace/engine): actually make m_filter_all_event_types useful by properly using it as fallback when no filter event types is provided [[#1875](https://github.com/falcosecurity/falco/pull/1875)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* fix(build): do not show plugin options in musl optimized builds [[#1871](https://github.com/falcosecurity/falco/pull/1871)] - [@LucaGuerra](https://github.com/LucaGuerra)
|
||||
* fix(aws_cloudtrail_rules.yaml): correct required plugin versions [[#1867](https://github.com/falcosecurity/falco/pull/1867)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* docs: fix priority level "info" to "informational" [[#1858](https://github.com/falcosecurity/falco/pull/1858)] - [@Andreagit97](https://github.com/Andreagit97)
|
||||
* Field properties changes [[#1838](https://github.com/falcosecurity/falco/pull/1838)] - [@mstemm](https://github.com/mstemm)
|
||||
* update(build): updated libs to latest master version; updated plugins versions [[#1856](https://github.com/falcosecurity/falco/pull/1856)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* Add Giant Swarm to Adopters list [[#1842](https://github.com/falcosecurity/falco/pull/1842)] - [@stone-z](https://github.com/stone-z)
|
||||
* update(tests): remove `token_bucket` unit tests [[#1798](https://github.com/falcosecurity/falco/pull/1798)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* fix(build): use consistent 7-character build abbrev sha [[#1830](https://github.com/falcosecurity/falco/pull/1830)] - [@LucaGuerra](https://github.com/LucaGuerra)
|
||||
* add Phoenix to adopters list [[#1806](https://github.com/falcosecurity/falco/pull/1806)] - [@kaldyka](https://github.com/kaldyka)
|
||||
* remove unused files in test directory [[#1801](https://github.com/falcosecurity/falco/pull/1801)] - [@jasondellaluce](https://github.com/jasondellaluce)
|
||||
* drop Falco luajit module, use the one provied by libs [[#1788](https://github.com/falcosecurity/falco/pull/1788)] - [@FedeDP](https://github.com/FedeDP)
|
||||
* chore(build): update libs version to 7906f7e [[#1790](https://github.com/falcosecurity/falco/pull/1790)] - [@LucaGuerra](https://github.com/LucaGuerra)
|
||||
* Add SysFlow to list of libs adopters [[#1747](https://github.com/falcosecurity/falco/pull/1747)] - [@araujof](https://github.com/araujof)
|
||||
* build: dropped centos8 circleci build because it is useless [[#1882](https://github.com/falcosecurity/falco/pull/1882)] - [@FedeDP](https://github.com/FedeDP)
|
||||
|
||||
|
||||
## v0.30.0
|
||||
|
||||
Released on 2021-10-01
|
||||
|
||||
@@ -67,6 +67,7 @@ endif()
|
||||
|
||||
if(MUSL_OPTIMIZED_BUILD)
|
||||
set(MUSL_FLAGS "-static -Os -fPIE -pie")
|
||||
add_definitions(-DMUSL_OPTIMIZED)
|
||||
endif()
|
||||
|
||||
# explicitly set hardening flags
|
||||
@@ -206,7 +207,9 @@ add_subdirectory(userspace/engine)
|
||||
add_subdirectory(userspace/falco)
|
||||
add_subdirectory(tests)
|
||||
|
||||
include(plugins)
|
||||
if(NOT MUSL_OPTIMIZED_BUILD)
|
||||
include(plugins)
|
||||
endif()
|
||||
|
||||
# Packages configuration
|
||||
include(CPackConfig)
|
||||
|
||||
@@ -24,8 +24,8 @@ else()
|
||||
# default below In case you want to test against another falcosecurity/libs version just pass the variable - ie., `cmake
|
||||
# -DFALCOSECURITY_LIBS_VERSION=dev ..`
|
||||
if(NOT FALCOSECURITY_LIBS_VERSION)
|
||||
set(FALCOSECURITY_LIBS_VERSION "4de7ad2857fb55439eb10455aacd1d262b70551b")
|
||||
set(FALCOSECURITY_LIBS_CHECKSUM "SHA256=3769e410fc0e31d5c7c37f33a7a73dfe52418a850d8f166fbafc67a723c619b6")
|
||||
set(FALCOSECURITY_LIBS_VERSION "319368f1ad778691164d33d59945e00c5752cd27")
|
||||
set(FALCOSECURITY_LIBS_CHECKSUM "SHA256=2cf44f06a282e8cee7aa1f775a08ea94c06e275faaf0636b21eb06af28cf4b3f")
|
||||
endif()
|
||||
|
||||
# cd /path/to/build && cmake /path/to/source
|
||||
|
||||
@@ -13,10 +13,12 @@
|
||||
|
||||
include(ExternalProject)
|
||||
|
||||
string(TOLOWER ${CMAKE_HOST_SYSTEM_NAME} PLUGINS_SYSTEM_NAME)
|
||||
|
||||
ExternalProject_Add(
|
||||
cloudtrail-plugin
|
||||
URL "https://download.falco.org/plugins/stable/cloudtrail-0.2.0-${CMAKE_HOST_SYSTEM_PROCESSOR}.tar.gz"
|
||||
URL_HASH "SHA256=917ebc5c3b1ad78d959372baa73ac2e9b18b38f51e1e42bd0974166dc04a964c"
|
||||
URL "https://download.falco.org/plugins/stable/cloudtrail-0.2.3-${PLUGINS_SYSTEM_NAME}-${CMAKE_HOST_SYSTEM_PROCESSOR}.tar.gz"
|
||||
URL_HASH "SHA256=3dfce36f37a4f834b6078c6b78776414472a6ee775e8f262535313cc4031d0b7"
|
||||
CONFIGURE_COMMAND ""
|
||||
BUILD_COMMAND ""
|
||||
INSTALL_COMMAND "")
|
||||
@@ -25,8 +27,8 @@ install(FILES "${PROJECT_BINARY_DIR}/cloudtrail-plugin-prefix/src/cloudtrail-plu
|
||||
|
||||
ExternalProject_Add(
|
||||
json-plugin
|
||||
URL "https://download.falco.org/plugins/stable/json-0.2.0-${CMAKE_HOST_SYSTEM_PROCESSOR}.tar.gz"
|
||||
URL_HASH "SHA256=250f0b04db7ab08f3bfa5ecd90cc9b39a6992fc2e96b887ed6f319a6ba156fd7"
|
||||
URL "https://download.falco.org/plugins/stable/json-0.2.2-${PLUGINS_SYSTEM_NAME}-${CMAKE_HOST_SYSTEM_PROCESSOR}.tar.gz"
|
||||
URL_HASH "SHA256=83eb411c9f2125695875b229c6e7974e6a4cc7f028be146b79d26db30372af5e"
|
||||
CONFIGURE_COMMAND ""
|
||||
BUILD_COMMAND ""
|
||||
INSTALL_COMMAND "")
|
||||
|
||||
@@ -92,7 +92,7 @@ log_level: info
|
||||
# Minimum rule priority level to load and run. All rules having a
|
||||
# priority more severe than this level will be loaded/run. Can be one
|
||||
# of "emergency", "alert", "critical", "error", "warning", "notice",
|
||||
# "info", "debug".
|
||||
# "informational", "debug".
|
||||
priority: debug
|
||||
|
||||
# Whether or not output to any of the output channels below is
|
||||
@@ -246,6 +246,7 @@ program_output:
|
||||
http_output:
|
||||
enabled: false
|
||||
url: http://some.url
|
||||
user_agent: "falcosecurity/falco"
|
||||
|
||||
# Falco supports running a gRPC server with two main binding types
|
||||
# 1. Over the network with mandatory mutual TLS authentication (mTLS)
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
#
|
||||
# Copyright (C) 2019 The Falco Authors.
|
||||
# Copyright (C) 2022 The Falco Authors.
|
||||
#
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
@@ -22,7 +22,9 @@
|
||||
# anything semver-compatible.
|
||||
- required_plugin_versions:
|
||||
- name: cloudtrail
|
||||
version: 0.1.0
|
||||
version: 0.2.3
|
||||
- name: json
|
||||
version: 0.2.2
|
||||
|
||||
# Note that this rule is disabled by default. It's useful only to
|
||||
# verify that the cloudtrail plugin is sending events properly. The
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
#
|
||||
# Copyright (C) 2020 The Falco Authors.
|
||||
# Copyright (C) 2022 The Falco Authors.
|
||||
#
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
@@ -63,11 +63,14 @@
|
||||
condition: rename or remove
|
||||
|
||||
- macro: spawned_process
|
||||
condition: evt.type = execve and evt.dir=<
|
||||
condition: evt.type in (execve, execveat) and evt.dir=<
|
||||
|
||||
- macro: create_symlink
|
||||
condition: evt.type in (symlink, symlinkat) and evt.dir=<
|
||||
|
||||
- macro: create_hardlink
|
||||
condition: evt.type in (link, linkat) and evt.dir=<
|
||||
|
||||
- macro: chmod
|
||||
condition: (evt.type in (chmod, fchmod, fchmodat) and evt.dir=<)
|
||||
|
||||
@@ -216,7 +219,7 @@
|
||||
- list: deb_binaries
|
||||
items: [dpkg, dpkg-preconfigu, dpkg-reconfigur, dpkg-divert, apt, apt-get, aptitude,
|
||||
frontend, preinst, add-apt-reposit, apt-auto-remova, apt-key,
|
||||
apt-listchanges, unattended-upgr, apt-add-reposit, apt-config, apt-cache, apt.systemd.dai
|
||||
apt-listchanges, unattended-upgr, apt-add-reposit, apt-cache, apt.systemd.dai
|
||||
]
|
||||
|
||||
# The truncated dpkg-preconfigu is intentional, process names are
|
||||
@@ -1871,19 +1874,6 @@
|
||||
container.image.repository in (falco_sensitive_mount_images) or
|
||||
container.image.repository startswith quay.io/sysdig/)
|
||||
|
||||
# These container images are allowed to run with hostnetwork=true
|
||||
- list: falco_hostnetwork_images
|
||||
items: [
|
||||
gcr.io/google-containers/prometheus-to-sd,
|
||||
gcr.io/projectcalico-org/typha,
|
||||
gcr.io/projectcalico-org/node,
|
||||
gke.gcr.io/gke-metadata-server,
|
||||
gke.gcr.io/kube-proxy,
|
||||
gke.gcr.io/netd-amd64,
|
||||
k8s.gcr.io/ip-masq-agent-amd64
|
||||
k8s.gcr.io/prometheus-to-sd,
|
||||
]
|
||||
|
||||
# Add conditions to this macro (probably in a separate file,
|
||||
# overwriting this macro) to specify additional containers that are
|
||||
# allowed to perform sensitive mounts.
|
||||
@@ -2709,7 +2699,17 @@
|
||||
(evt.arg.target in (sensitive_file_names) or evt.arg.target in (sensitive_directory_names))
|
||||
output: >
|
||||
Symlinks created over sensitive files (user=%user.name user_loginuid=%user.loginuid command=%proc.cmdline target=%evt.arg.target linkpath=%evt.arg.linkpath parent_process=%proc.pname)
|
||||
priority: NOTICE
|
||||
priority: WARNING
|
||||
tags: [file, mitre_exfiltration]
|
||||
|
||||
- rule: Create Hardlink Over Sensitive Files
|
||||
desc: Detect hardlink created over sensitive files
|
||||
condition: >
|
||||
create_hardlink and
|
||||
(evt.arg.oldpath in (sensitive_file_names))
|
||||
output: >
|
||||
Hardlinks created over sensitive files (user=%user.name user_loginuid=%user.loginuid command=%proc.cmdline target=%evt.arg.oldpath linkpath=%evt.arg.newpath parent_process=%proc.pname)
|
||||
priority: WARNING
|
||||
tags: [file, mitre_exfiltration]
|
||||
|
||||
- list: miner_ports
|
||||
@@ -2820,7 +2820,7 @@
|
||||
|
||||
- rule: Detect crypto miners using the Stratum protocol
|
||||
desc: Miners typically specify the mining pool to connect to with a URI that begins with 'stratum+tcp'
|
||||
condition: spawned_process and proc.cmdline contains "stratum+tcp"
|
||||
condition: spawned_process and (proc.cmdline contains "stratum+tcp" or proc.cmdline contains "stratum2+tcp" or proc.cmdline contains "stratum+ssl" or proc.cmdline contains "stratum2+ssl")
|
||||
output: Possible miner running (command=%proc.cmdline container=%container.info image=%container.image.repository)
|
||||
priority: CRITICAL
|
||||
tags: [process, mitre_execution]
|
||||
@@ -3039,7 +3039,7 @@
|
||||
# A privilege escalation to root through heap-based buffer overflow
|
||||
- rule: Sudo Potential Privilege Escalation
|
||||
desc: Privilege escalation vulnerability affecting sudo (<= 1.9.5p2). Executing sudo using sudoedit -s or sudoedit -i command with command-line argument that ends with a single backslash character from an unprivileged user it's possible to elevate the user privileges to root.
|
||||
condition: spawned_process and user.uid != 0 and proc.name=sudoedit and (proc.args contains -s or proc.args contains -i) and (proc.args contains "\ " or proc.args endswith \)
|
||||
condition: spawned_process and user.uid != 0 and (proc.name=sudoedit or proc.name = sudo) and (proc.args contains -s or proc.args contains -i or proc.args contains --login) and (proc.args contains "\ " or proc.args endswith \)
|
||||
output: "Detect Sudo Privilege Escalation Exploit (CVE-2021-3156) (user=%user.name parent=%proc.pname cmdline=%proc.cmdline %container.info)"
|
||||
priority: CRITICAL
|
||||
tags: [filesystem, mitre_privilege_escalation]
|
||||
|
||||
@@ -152,6 +152,19 @@
|
||||
source: k8s_audit
|
||||
tags: [k8s]
|
||||
|
||||
# These container images are allowed to run with hostnetwork=true
|
||||
- list: falco_hostnetwork_images
|
||||
items: [
|
||||
gcr.io/google-containers/prometheus-to-sd,
|
||||
gcr.io/projectcalico-org/typha,
|
||||
gcr.io/projectcalico-org/node,
|
||||
gke.gcr.io/gke-metadata-server,
|
||||
gke.gcr.io/kube-proxy,
|
||||
gke.gcr.io/netd-amd64,
|
||||
k8s.gcr.io/ip-masq-agent-amd64
|
||||
k8s.gcr.io/prometheus-to-sd,
|
||||
]
|
||||
|
||||
# Corresponds to K8s CIS Benchmark 1.7.4
|
||||
- rule: Create HostNetwork Pod
|
||||
desc: Detect an attempt to start a pod using the host network.
|
||||
|
||||
@@ -160,15 +160,26 @@ load_kernel_module_compile() {
|
||||
echo "make CC=${CURRENT_GCC} \$@" >> /tmp/falco-dkms-make
|
||||
chmod +x /tmp/falco-dkms-make
|
||||
if dkms install --directive="MAKE='/tmp/falco-dkms-make'" -m "${DRIVER_NAME}" -v "${DRIVER_VERSION}" -k "${KERNEL_RELEASE}" 2>/dev/null; then
|
||||
echo "* ${DRIVER_NAME} module installed in dkms, trying to insmod"
|
||||
chcon -t modules_object_t "/var/lib/dkms/${DRIVER_NAME}/${DRIVER_VERSION}/${KERNEL_RELEASE}/${ARCH}/module/${DRIVER_NAME}.ko" > /dev/null 2>&1 || true
|
||||
chcon -t modules_object_t "/var/lib/dkms/${DRIVER_NAME}/${DRIVER_VERSION}/${KERNEL_RELEASE}/${ARCH}/module/${DRIVER_NAME}.ko.xz" > /dev/null 2>&1 || true
|
||||
if insmod "/var/lib/dkms/${DRIVER_NAME}/${DRIVER_VERSION}/${KERNEL_RELEASE}/${ARCH}/module/${DRIVER_NAME}.ko" > /dev/null 2>&1; then
|
||||
echo "* ${DRIVER_NAME} module installed in dkms"
|
||||
KO_FILE="/var/lib/dkms/${DRIVER_NAME}/${DRIVER_VERSION}/${KERNEL_RELEASE}/${ARCH}/module/${DRIVER_NAME}"
|
||||
if [ -f "$KO_FILE.ko" ]; then
|
||||
KO_FILE="$KO_FILE.ko"
|
||||
elif [ -f "$KO_FILE.ko.gz" ]; then
|
||||
KO_FILE="$KO_FILE.ko.gz"
|
||||
elif [ -f "$KO_FILE.ko.xz" ]; then
|
||||
KO_FILE="$KO_FILE.ko.xz"
|
||||
elif [ -f "$KO_FILE.ko.zst" ]; then
|
||||
KO_FILE="$KO_FILE.ko.zst"
|
||||
else
|
||||
>&2 echo "${DRIVER_NAME} module file not found"
|
||||
return
|
||||
fi
|
||||
echo "* ${DRIVER_NAME} module found: ${KO_FILE}"
|
||||
echo "* Trying insmod"
|
||||
chcon -t modules_object_t "$KO_FILE" > /dev/null 2>&1 || true
|
||||
if insmod "$KO_FILE" > /dev/null 2>&1; then
|
||||
echo "* Success: ${DRIVER_NAME} module found and loaded in dkms"
|
||||
exit 0
|
||||
elif insmod "/var/lib/dkms/${DRIVER_NAME}/${DRIVER_VERSION}/${KERNEL_RELEASE}/${ARCH}/module/${DRIVER_NAME}.ko.xz" > /dev/null 2>&1; then
|
||||
echo "* Success: ${DRIVER_NAME} module found and loaded in dkms (xz)"
|
||||
exit 0
|
||||
else
|
||||
echo "* Unable to insmod ${DRIVER_NAME} module"
|
||||
fi
|
||||
@@ -196,8 +207,12 @@ load_kernel_module_download() {
|
||||
if curl -L --create-dirs "${FALCO_DRIVER_CURL_OPTIONS}" -o "${HOME}/.falco/${FALCO_KERNEL_MODULE_FILENAME}" "${URL}"; then
|
||||
echo "* Download succeeded"
|
||||
chcon -t modules_object_t "${HOME}/.falco/${FALCO_KERNEL_MODULE_FILENAME}" > /dev/null 2>&1 || true
|
||||
insmod "${HOME}/.falco/${FALCO_KERNEL_MODULE_FILENAME}" && echo "* Success: ${DRIVER_NAME} module found and inserted"
|
||||
exit $?
|
||||
if insmod "${HOME}/.falco/${FALCO_KERNEL_MODULE_FILENAME}"; then
|
||||
echo "* Success: ${DRIVER_NAME} module found and inserted"
|
||||
exit 0
|
||||
else
|
||||
>&2 echo "Unable to insmod the prebuilt ${DRIVER_NAME} module"
|
||||
fi
|
||||
else
|
||||
>&2 echo "Unable to find a prebuilt ${DRIVER_NAME} module"
|
||||
return
|
||||
@@ -241,11 +256,6 @@ load_kernel_module() {
|
||||
exit 0
|
||||
fi
|
||||
|
||||
echo "* Trying to load a system ${DRIVER_NAME} module, if present"
|
||||
if modprobe "${DRIVER_NAME}" > /dev/null 2>&1; then
|
||||
echo "* Success: ${DRIVER_NAME} module found and loaded with modprobe"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
echo "* Looking for a ${DRIVER_NAME} module locally (kernel ${KERNEL_RELEASE})"
|
||||
|
||||
@@ -268,6 +278,13 @@ load_kernel_module() {
|
||||
load_kernel_module_compile
|
||||
fi
|
||||
|
||||
# Last try (might load a previous driver version)
|
||||
echo "* Trying to load a system ${DRIVER_NAME} module, if present"
|
||||
if modprobe "${DRIVER_NAME}" > /dev/null 2>&1; then
|
||||
echo "* Success: ${DRIVER_NAME} module found and loaded with modprobe"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
# Not able to download a prebuilt module nor to compile one on-the-fly
|
||||
>&2 echo "Consider compiling your own ${DRIVER_NAME} driver and loading it or getting in touch with the Falco community"
|
||||
exit 1
|
||||
|
||||
@@ -49,6 +49,7 @@ trace_files: !mux
|
||||
detect: False
|
||||
rules_file:
|
||||
- ../rules/falco_rules.yaml
|
||||
- ../rules/k8s_audit_rules.yaml
|
||||
- ./rules/k8s_audit/engine_v4_k8s_audit_rules.yaml
|
||||
- ./rules/k8s_audit/trust_nginx_container.yaml
|
||||
trace_file: trace_files/k8s_audit/create_nginx_pod_privileged.json
|
||||
@@ -74,6 +75,7 @@ trace_files: !mux
|
||||
detect: False
|
||||
rules_file:
|
||||
- ../rules/falco_rules.yaml
|
||||
- ../rules/k8s_audit_rules.yaml
|
||||
- ./rules/k8s_audit/engine_v4_k8s_audit_rules.yaml
|
||||
- ./rules/k8s_audit/trust_nginx_container.yaml
|
||||
trace_file: trace_files/k8s_audit/create_nginx_pod_hostnetwork.json
|
||||
|
||||
@@ -42,8 +42,9 @@ TEST_CASE("Should enable/disable for exact match w/ default ruleset", "[rulesets
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("one_rule", exact_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -57,8 +58,9 @@ TEST_CASE("Should enable/disable for exact match w/ specific ruleset", "[ruleset
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("one_rule", exact_match, enabled, non_default_ruleset);
|
||||
REQUIRE(r.num_rules_for_ruleset(non_default_ruleset) == 1);
|
||||
@@ -76,8 +78,9 @@ TEST_CASE("Should not enable for exact match different rule name", "[rulesets]")
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("some_other_rule", exact_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 0);
|
||||
@@ -88,8 +91,9 @@ TEST_CASE("Should enable/disable for exact match w/ substring and default rulese
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("one_rule", substring_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -103,8 +107,9 @@ TEST_CASE("Should not enable for substring w/ exact_match", "[rulesets]")
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("one_", exact_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 0);
|
||||
@@ -115,8 +120,9 @@ TEST_CASE("Should enable/disable for prefix match w/ default ruleset", "[ruleset
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("one_", substring_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -130,8 +136,9 @@ TEST_CASE("Should enable/disable for suffix match w/ default ruleset", "[ruleset
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("_rule", substring_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -145,8 +152,9 @@ TEST_CASE("Should enable/disable for substring match w/ default ruleset", "[rule
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("ne_ru", substring_match, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -160,8 +168,9 @@ TEST_CASE("Should enable/disable for substring match w/ specific ruleset", "[rul
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable("ne_ru", substring_match, enabled, non_default_ruleset);
|
||||
REQUIRE(r.num_rules_for_ruleset(non_default_ruleset) == 1);
|
||||
@@ -179,9 +188,10 @@ TEST_CASE("Should enable/disable for tags w/ default ruleset", "[rulesets]")
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
std::set<std::string> want_tags = {"some_tag"};
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable_tags(want_tags, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -195,9 +205,10 @@ TEST_CASE("Should enable/disable for tags w/ specific ruleset", "[rulesets]")
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
std::set<std::string> want_tags = {"some_tag"};
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable_tags(want_tags, enabled, non_default_ruleset);
|
||||
REQUIRE(r.num_rules_for_ruleset(non_default_ruleset) == 1);
|
||||
@@ -215,9 +226,10 @@ TEST_CASE("Should not enable for different tags", "[rulesets]")
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
std::set<std::string> want_tags = {"some_different_tag"};
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable_tags(want_tags, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(non_default_ruleset) == 0);
|
||||
@@ -228,9 +240,10 @@ TEST_CASE("Should enable/disable for overlapping tags", "[rulesets]")
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> filter = create_filter();
|
||||
string rule_name = "one_rule";
|
||||
string source = "syscall";
|
||||
std::set<std::string> want_tags = {"some_tag", "some_different_tag"};
|
||||
|
||||
r.add(rule_name, tags, filter);
|
||||
r.add(source, rule_name, tags, filter);
|
||||
|
||||
r.enable_tags(want_tags, enabled);
|
||||
REQUIRE(r.num_rules_for_ruleset(default_ruleset) == 1);
|
||||
@@ -241,16 +254,17 @@ TEST_CASE("Should enable/disable for overlapping tags", "[rulesets]")
|
||||
|
||||
TEST_CASE("Should enable/disable for incremental adding tags", "[rulesets]")
|
||||
{
|
||||
string source = "syscall";
|
||||
falco_ruleset r;
|
||||
std::shared_ptr<gen_event_filter> rule1_filter = create_filter();
|
||||
string rule1_name = "one_rule";
|
||||
std::set<std::string> rule1_tags = {"rule1_tag"};
|
||||
r.add(rule1_name, rule1_tags, rule1_filter);
|
||||
r.add(source, rule1_name, rule1_tags, rule1_filter);
|
||||
|
||||
std::shared_ptr<gen_event_filter> rule2_filter = create_filter();
|
||||
string rule2_name = "two_rule";
|
||||
std::set<std::string> rule2_tags = {"rule2_tag"};
|
||||
r.add(rule2_name, rule2_tags, rule2_filter);
|
||||
r.add(source, rule2_name, rule2_tags, rule2_filter);
|
||||
|
||||
std::set<std::string> want_tags;
|
||||
|
||||
|
||||
@@ -56,6 +56,3 @@ else()
|
||||
endif()
|
||||
|
||||
target_link_libraries(falco_engine "${FALCO_SINSP_LIBRARY}" "${LPEG_LIB}" "${LYAML_LIB}" "${LIBYAML_LIB}" luafiles)
|
||||
|
||||
configure_file(config_falco_engine.h.in config_falco_engine.h)
|
||||
|
||||
|
||||
@@ -1,20 +0,0 @@
|
||||
/*
|
||||
Copyright (C) 2019 The Falco Authors.
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#define FALCO_ENGINE_LUA_DIR "${FALCO_ABSOLUTE_SHARE_DIR}/lua/"
|
||||
#define FALCO_ENGINE_SOURCE_LUA_DIR "${PROJECT_SOURCE_DIR}/userspace/engine/lua/"
|
||||
@@ -16,7 +16,6 @@ limitations under the License.
|
||||
|
||||
#include <fstream>
|
||||
|
||||
#include "config_falco_engine.h"
|
||||
#include "falco_common.h"
|
||||
#include "banned.h" // This raises a compilation error when certain functions are used
|
||||
#include "falco_engine_lua_files.hh"
|
||||
|
||||
@@ -25,7 +25,6 @@ limitations under the License.
|
||||
#include "falco_engine.h"
|
||||
#include "falco_utils.h"
|
||||
#include "falco_engine_version.h"
|
||||
#include "config_falco_engine.h"
|
||||
|
||||
#include "formats.h"
|
||||
|
||||
@@ -44,7 +43,7 @@ const std::string falco_engine::s_default_ruleset = "falco-default-ruleset";
|
||||
|
||||
using namespace std;
|
||||
|
||||
falco_engine::falco_engine(bool seed_rng, const std::string& alternate_lua_dir)
|
||||
falco_engine::falco_engine(bool seed_rng)
|
||||
: m_next_ruleset_id(0),
|
||||
m_min_priority(falco_common::PRIORITY_DEBUG),
|
||||
m_sampling_ratio(1), m_sampling_multiplier(0),
|
||||
@@ -136,6 +135,12 @@ void falco_engine::list_fields(std::string &source, bool verbose, bool names_onl
|
||||
{
|
||||
for(auto &field : fld_class.fields)
|
||||
{
|
||||
// Skip fields with the EPF_TABLE_ONLY flag.
|
||||
if(field.tags.find("EPF_TABLE_ONLY") != field.tags.end())
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
printf("%s\n", field.name.c_str());
|
||||
}
|
||||
}
|
||||
@@ -415,7 +420,7 @@ void falco_engine::add_filter(std::shared_ptr<gen_event_filter> filter,
|
||||
throw falco_exception(err);
|
||||
}
|
||||
|
||||
it->second->add(rule, tags, filter);
|
||||
it->second->add(source, rule, tags, filter);
|
||||
}
|
||||
|
||||
bool falco_engine::is_source_valid(const std::string &source)
|
||||
@@ -427,7 +432,7 @@ bool falco_engine::is_plugin_compatible(const std::string &name,
|
||||
const std::string &version,
|
||||
std::string &required_version)
|
||||
{
|
||||
sinsp_plugin::version plugin_version(version.c_str());
|
||||
sinsp_plugin::version plugin_version(version);
|
||||
|
||||
if(!plugin_version.m_valid)
|
||||
{
|
||||
@@ -442,13 +447,12 @@ bool falco_engine::is_plugin_compatible(const std::string &name,
|
||||
|
||||
for(auto &rversion : m_required_plugin_versions[name])
|
||||
{
|
||||
sinsp_plugin::version req_version(rversion.c_str());
|
||||
if(req_version.m_version_major > plugin_version.m_version_major)
|
||||
sinsp_plugin::version req_version(rversion);
|
||||
if (!plugin_version.check(req_version))
|
||||
{
|
||||
required_version = rversion;
|
||||
return false;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return true;
|
||||
|
||||
@@ -32,7 +32,6 @@ limitations under the License.
|
||||
#include "rules.h"
|
||||
#include "ruleset.h"
|
||||
|
||||
#include "config_falco_engine.h"
|
||||
#include "falco_common.h"
|
||||
|
||||
//
|
||||
@@ -44,7 +43,7 @@ limitations under the License.
|
||||
class falco_engine : public falco_common
|
||||
{
|
||||
public:
|
||||
falco_engine(bool seed_rng=true, const std::string& alternate_lua_dir=FALCO_ENGINE_SOURCE_LUA_DIR);
|
||||
falco_engine(bool seed_rng=true);
|
||||
virtual ~falco_engine();
|
||||
|
||||
// A given engine has a version which identifies the fields
|
||||
|
||||
@@ -21,5 +21,4 @@ limitations under the License.
|
||||
// This is the result of running "falco --list -N | sha256sum" and
|
||||
// represents the fields supported by this version of Falco. It's used
|
||||
// at build time to detect a changed set of fields.
|
||||
#define FALCO_FIELDS_CHECKSUM "afddd456b7304d09d640d15123539bc48db45c5a85794e1e17593a1cf164a34a"
|
||||
|
||||
#define FALCO_FIELDS_CHECKSUM "4de812495f8529ac20bda2b9774462b15911a51df293d59fe9ccb6b922fdeb9d"
|
||||
|
||||
@@ -10,7 +10,7 @@
|
||||
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||||
# specific language governing permissions and limitations under the License.
|
||||
|
||||
file(GLOB_RECURSE lua_module_files ${CMAKE_CURRENT_SOURCE_DIR} *.lua)
|
||||
file(GLOB_RECURSE lua_files ${CMAKE_CURRENT_SOURCE_DIR} *.lua)
|
||||
|
||||
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/falco_engine_lua_files.cpp
|
||||
COMMAND bash ${CMAKE_CURRENT_SOURCE_DIR}/lua-to-cpp.sh ${CMAKE_CURRENT_SOURCE_DIR} ${LYAML_LUA_DIR} ${CMAKE_CURRENT_BINARY_DIR}
|
||||
|
||||
@@ -1059,9 +1059,9 @@ function load_rules(rules_content,
|
||||
|
||||
else
|
||||
num_evttypes = falco_rules.add_filter(rules_mgr, lua_parser, v['rule'], v['source'], v['tags'])
|
||||
if num_evttypes == 0 or num_evttypes > 100 then
|
||||
if v['source'] == "syscall" and (num_evttypes == 0 or num_evttypes > 100) then
|
||||
if warn_evttypes == true then
|
||||
msg = "Rule "..v['rule']..": warning (no-evttype):"
|
||||
msg = "Rule "..v['rule']..": warning (no-evttype):\n".." matches too many evt.type values.\n".." This has a significant performance penalty."
|
||||
warnings[#warnings + 1] = msg
|
||||
end
|
||||
end
|
||||
|
||||
@@ -145,11 +145,19 @@ int falco_rules::add_filter(lua_State *ls)
|
||||
lua_pop(ls, 1);
|
||||
}
|
||||
|
||||
size_t num_evttypes = lp->filter()->evttypes().size();
|
||||
// todo(jasondellaluce,leogr,fededp): temp workaround, remove when fixed in libs
|
||||
size_t num_evttypes = 1; // assume plugin
|
||||
if(source == "syscall" || source == "k8s_audit")
|
||||
{
|
||||
num_evttypes = lp->filter()->evttypes().size();
|
||||
}
|
||||
|
||||
try {
|
||||
try
|
||||
{
|
||||
rules->add_filter(lp->filter(), rule, source, tags);
|
||||
} catch (exception &e) {
|
||||
}
|
||||
catch (exception &e)
|
||||
{
|
||||
std::string errstr = string("Could not add rule to falco engine: ") + e.what();
|
||||
lua_pushstring(ls, errstr.c_str());
|
||||
lua_error(ls);
|
||||
|
||||
@@ -66,7 +66,7 @@ void falco_ruleset::ruleset_filters::remove_wrapper_from_list(filter_wrapper_lis
|
||||
|
||||
void falco_ruleset::ruleset_filters::add_filter(std::shared_ptr<filter_wrapper> wrap)
|
||||
{
|
||||
std::set<uint16_t> fevttypes = wrap->filter->evttypes();
|
||||
std::set<uint16_t> fevttypes = wrap->evttypes();
|
||||
|
||||
if(fevttypes.empty())
|
||||
{
|
||||
@@ -91,7 +91,7 @@ void falco_ruleset::ruleset_filters::add_filter(std::shared_ptr<filter_wrapper>
|
||||
|
||||
void falco_ruleset::ruleset_filters::remove_filter(std::shared_ptr<filter_wrapper> wrap)
|
||||
{
|
||||
std::set<uint16_t> fevttypes = wrap->filter->evttypes();
|
||||
std::set<uint16_t> fevttypes = wrap->evttypes();
|
||||
|
||||
if(fevttypes.empty())
|
||||
{
|
||||
@@ -118,18 +118,16 @@ uint64_t falco_ruleset::ruleset_filters::num_filters()
|
||||
|
||||
bool falco_ruleset::ruleset_filters::run(gen_event *evt)
|
||||
{
|
||||
if(evt->get_type() >= m_filter_by_event_type.size())
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
for(auto &wrap : m_filter_by_event_type[evt->get_type()])
|
||||
{
|
||||
if(wrap->filter->run(evt))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
if(evt->get_type() < m_filter_by_event_type.size())
|
||||
{
|
||||
for(auto &wrap : m_filter_by_event_type[evt->get_type()])
|
||||
{
|
||||
if(wrap->filter->run(evt))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Finally, try filters that are not specific to an event type.
|
||||
for(auto &wrap : m_filter_all_event_types)
|
||||
@@ -149,16 +147,18 @@ void falco_ruleset::ruleset_filters::evttypes_for_ruleset(std::set<uint16_t> &ev
|
||||
|
||||
for(auto &wrap : m_filters)
|
||||
{
|
||||
auto fevttypes = wrap->filter->evttypes();
|
||||
auto fevttypes = wrap->evttypes();
|
||||
evttypes.insert(fevttypes.begin(), fevttypes.end());
|
||||
}
|
||||
}
|
||||
|
||||
void falco_ruleset::add(string &name,
|
||||
void falco_ruleset::add(string &source,
|
||||
string &name,
|
||||
set<string> &tags,
|
||||
std::shared_ptr<gen_event_filter> filter)
|
||||
{
|
||||
std::shared_ptr<filter_wrapper> wrap(new filter_wrapper());
|
||||
wrap->source = source;
|
||||
wrap->name = name;
|
||||
wrap->tags = tags;
|
||||
wrap->filter = filter;
|
||||
|
||||
@@ -34,7 +34,8 @@ public:
|
||||
falco_ruleset();
|
||||
virtual ~falco_ruleset();
|
||||
|
||||
void add(std::string &name,
|
||||
void add(string &source,
|
||||
std::string &name,
|
||||
std::set<std::string> &tags,
|
||||
std::shared_ptr<gen_event_filter> filter);
|
||||
|
||||
@@ -73,9 +74,21 @@ private:
|
||||
|
||||
class filter_wrapper {
|
||||
public:
|
||||
std::string source;
|
||||
std::string name;
|
||||
std::set<std::string> tags;
|
||||
std::shared_ptr<gen_event_filter> filter;
|
||||
std::set<uint16_t> evttypes()
|
||||
{
|
||||
// todo(jasondellaluce,leogr): temp workarond, remove when fixed in libs
|
||||
if(source == "syscall" || source == "k8s_audit")
|
||||
{
|
||||
return filter->evttypes();
|
||||
}
|
||||
// else assume plugins
|
||||
return {ppm_event_type::PPME_PLUGINEVENT_E};
|
||||
// workaround end
|
||||
}
|
||||
};
|
||||
|
||||
typedef std::list<std::shared_ptr<filter_wrapper>> filter_wrapper_list;
|
||||
|
||||
@@ -148,6 +148,10 @@ void falco_configuration::init(string conf_filename, list<string> &cmdline_optio
|
||||
}
|
||||
http_output.options["url"] = url;
|
||||
|
||||
string user_agent;
|
||||
user_agent = m_config->get_scalar<string>("http_output.user_agent","falcosecurity/falco");
|
||||
http_output.options["user_agent"] = user_agent;
|
||||
|
||||
m_outputs.push_back(http_output);
|
||||
}
|
||||
|
||||
|
||||
@@ -94,7 +94,6 @@ static void usage()
|
||||
" -h, --help Print this page\n"
|
||||
" -c Configuration file (default " FALCO_SOURCE_CONF_FILE ", " FALCO_INSTALL_CONF_FILE ")\n"
|
||||
" -A Monitor all events, including those with EF_DROP_SIMPLE_CONS flag.\n"
|
||||
" --alternate-lua-dir <path> Specify an alternate path for loading Falco lua files\n"
|
||||
" -b, --print-base64 Print data buffers in base64.\n"
|
||||
" This is useful for encoding binary data that needs to be used over media designed to.\n"
|
||||
" --cri <path> Path to CRI socket for container metadata.\n"
|
||||
@@ -137,8 +136,12 @@ static void usage()
|
||||
" -l <rule> Show the name and description of the rule with name <rule> and exit.\n"
|
||||
" --list [<source>] List all defined fields. If <source> is provided, only list those fields for\n"
|
||||
" the source <source>. Current values for <source> are \"syscall\", \"k8s_audit\"\n"
|
||||
#ifndef MUSL_OPTIMIZED_BUILD
|
||||
" --list-fields-markdown [<source>]\n"
|
||||
" List fields in md\n"
|
||||
#ifndef MUSL_OPTIMIZED
|
||||
" --list-plugins Print info on all loaded plugins and exit.\n"
|
||||
#endif
|
||||
#ifndef MINIMAL_BUILD
|
||||
" -m <url[,marathon_url]>, --mesos-api <url[,marathon_url]>\n"
|
||||
" Enable Mesos support by connecting to the API server\n"
|
||||
" specified as argument. E.g. \"http://admin:password@127.0.0.1:5050\".\n"
|
||||
@@ -456,11 +459,29 @@ static void check_for_ignored_events(sinsp &inspector, falco_engine &engine)
|
||||
std::string name = etable[evtnum].name;
|
||||
if(warn_event_names.find(name) == warn_event_names.end())
|
||||
{
|
||||
printf("Loaded rules use event %s, but this event is not returned unless running falco with -A\n", name.c_str());
|
||||
warn_event_names.insert(name);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Print a single warning with the list of ignored events
|
||||
if (!warn_event_names.empty())
|
||||
{
|
||||
std::string skipped_events;
|
||||
bool first = true;
|
||||
for (const auto& evtname : warn_event_names)
|
||||
{
|
||||
if (first)
|
||||
{
|
||||
skipped_events += evtname;
|
||||
first = false;
|
||||
} else
|
||||
{
|
||||
skipped_events += "," + evtname;
|
||||
}
|
||||
}
|
||||
fprintf(stderr,"Rules match ignored syscall: warning (ignored-evttype):\n loaded rules match the following events: %s;\n but these events are not returned unless running falco with -A\n", skipped_events.c_str());
|
||||
}
|
||||
}
|
||||
|
||||
static void list_source_fields(falco_engine *engine, bool verbose, bool names_only, std::string &source)
|
||||
@@ -545,7 +566,6 @@ int falco_init(int argc, char **argv)
|
||||
|
||||
static struct option long_options[] =
|
||||
{
|
||||
{"alternate-lua-dir", required_argument, 0},
|
||||
{"cri", required_argument, 0},
|
||||
{"daemon", no_argument, 0, 'd'},
|
||||
{"disable-cri-async", no_argument, 0, 0},
|
||||
@@ -556,9 +576,7 @@ int falco_init(int argc, char **argv)
|
||||
{"k8s-api", required_argument, 0, 'k'},
|
||||
{"k8s-node", required_argument, 0},
|
||||
{"list", optional_argument, 0},
|
||||
#ifndef MUSL_OPTIMIZED_BUILD
|
||||
{"list-plugins", no_argument, 0},
|
||||
#endif
|
||||
{"mesos-api", required_argument, 0, 'm'},
|
||||
{"option", required_argument, 0, 'o'},
|
||||
{"pidfile", required_argument, 0, 'P'},
|
||||
@@ -578,8 +596,7 @@ int falco_init(int argc, char **argv)
|
||||
{
|
||||
set<string> disabled_rule_substrings;
|
||||
string substring;
|
||||
string all_rules = "";
|
||||
string alternate_lua_dir = FALCO_ENGINE_SOURCE_LUA_DIR;
|
||||
string all_rules;
|
||||
set<string> disabled_rule_tags;
|
||||
set<string> enabled_rule_tags;
|
||||
|
||||
@@ -751,7 +768,7 @@ int falco_init(int argc, char **argv)
|
||||
list_flds_source = optarg;
|
||||
}
|
||||
}
|
||||
#ifndef MUSL_OPTIMIZED_BUILD
|
||||
#ifndef MUSL_OPTIMIZED
|
||||
else if (string(long_options[long_index].name) == "list-plugins")
|
||||
{
|
||||
list_plugins = true;
|
||||
@@ -772,16 +789,6 @@ int falco_init(int argc, char **argv)
|
||||
disable_sources.insert(optarg);
|
||||
}
|
||||
}
|
||||
else if (string(long_options[long_index].name)== "alternate-lua-dir")
|
||||
{
|
||||
if(optarg != NULL)
|
||||
{
|
||||
alternate_lua_dir = optarg;
|
||||
if (alternate_lua_dir.back() != '/') {
|
||||
alternate_lua_dir += '/';
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
@@ -817,7 +824,7 @@ int falco_init(int argc, char **argv)
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
engine = new falco_engine(true, alternate_lua_dir);
|
||||
engine = new falco_engine(true);
|
||||
engine->set_extra(output_format, replace_container_info);
|
||||
|
||||
// Create "factories" that can create filters/formatters for
|
||||
@@ -947,7 +954,7 @@ int falco_init(int argc, char **argv)
|
||||
for(auto &p : config.m_plugins)
|
||||
{
|
||||
std::shared_ptr<sinsp_plugin> plugin;
|
||||
#ifdef MUSL_OPTIMIZED_BUILD
|
||||
#ifdef MUSL_OPTIMIZED
|
||||
throw std::invalid_argument(string("Can not load/use plugins with musl optimized build"));
|
||||
#else
|
||||
falco_logger::log(LOG_INFO, "Loading plugin (" + p.m_name + ") from file " + p.m_library_path + "\n");
|
||||
@@ -1041,6 +1048,7 @@ int falco_init(int argc, char **argv)
|
||||
{
|
||||
os << "Type: extractor plugin" << std::endl;
|
||||
}
|
||||
os << std::endl;
|
||||
}
|
||||
|
||||
printf("%lu Plugins Loaded:\n\n%s\n", infos.size(), os.str().c_str());
|
||||
@@ -1138,11 +1146,6 @@ int falco_init(int argc, char **argv)
|
||||
engine->enable_rule_by_tag(enabled_rule_tags, true);
|
||||
}
|
||||
|
||||
// For syscalls, see if any event types used by the
|
||||
// loaded rules are ones with the EF_DROP_SIMPLE_CONS
|
||||
// label.
|
||||
check_for_ignored_events(*inspector, *engine);
|
||||
|
||||
if(print_support)
|
||||
{
|
||||
nlohmann::json support;
|
||||
@@ -1206,6 +1209,10 @@ int falco_init(int argc, char **argv)
|
||||
|
||||
if(!all_events)
|
||||
{
|
||||
// For syscalls, see if any event types used by the
|
||||
// loaded rules are ones with the EF_DROP_SIMPLE_CONS
|
||||
// label.
|
||||
check_for_ignored_events(*inspector, *engine);
|
||||
// Drop EF_DROP_SIMPLE_CONS kernel side
|
||||
inspector->set_simple_consumer();
|
||||
// Eventually, drop any EF_DROP_SIMPLE_CONS event
|
||||
|
||||
@@ -34,11 +34,14 @@ void falco::outputs::output_http::output(const message *msg)
|
||||
} else {
|
||||
slist1 = curl_slist_append(slist1, "Content-Type: text/plain");
|
||||
}
|
||||
|
||||
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist1);
|
||||
curl_easy_setopt(curl, CURLOPT_URL, m_oc.options["url"].c_str());
|
||||
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, msg->msg.c_str());
|
||||
curl_easy_setopt(curl, CURLOPT_USERAGENT, m_oc.options["user_agent"].c_str());
|
||||
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, -1L);
|
||||
|
||||
|
||||
res = curl_easy_perform(curl);
|
||||
|
||||
if(res != CURLE_OK)
|
||||
@@ -50,4 +53,4 @@ void falco::outputs::output_http::output(const message *msg)
|
||||
curl_slist_free_all(slist1);
|
||||
slist1 = NULL;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user