From 90b85bf3fa79ecf16638f704c1c6aef1afff2e5f Mon Sep 17 00:00:00 2001 From: Patrick Rhomberg Date: Wed, 9 Sep 2020 17:32:03 +0000 Subject: [PATCH] KEP-1933: add static analysis target to hack/ * Add static analysis to hack/verify-govet-levee.sh for defense against accidental logging of credentials. * Add binary dependency to hack/tools/tools.go and associated go.mod, go.sum. * Add analysis configuration to hack/testdata/levee/ --- hack/testdata/levee/OWNERS | 6 + hack/testdata/levee/levee-config.yaml | 60 +++++ .../github.com/google/go-flow-levee/LICENSE | 206 ++++++++++++++++++ .../LICENSES/vendor/gopkg.in/yaml.v2/LICENSE | 205 +++++++++++++++++ .../LICENSES/vendor/sigs.k8s.io/yaml/LICENSE | 54 +++++ hack/tools/go.mod | 1 + hack/tools/go.sum | 7 + hack/tools/tools.go | 1 + hack/verify-govet-levee.sh | 42 ++++ 9 files changed, 582 insertions(+) create mode 100644 hack/testdata/levee/OWNERS create mode 100644 hack/testdata/levee/levee-config.yaml create mode 100644 hack/tools/LICENSES/vendor/github.com/google/go-flow-levee/LICENSE create mode 100644 hack/tools/LICENSES/vendor/gopkg.in/yaml.v2/LICENSE create mode 100644 hack/tools/LICENSES/vendor/sigs.k8s.io/yaml/LICENSE create mode 100755 hack/verify-govet-levee.sh diff --git a/hack/testdata/levee/OWNERS b/hack/testdata/levee/OWNERS new file mode 100644 index 00000000000..25b2d42bef4 --- /dev/null +++ b/hack/testdata/levee/OWNERS @@ -0,0 +1,6 @@ +# See the OWNERS docs at https://go.k8s.io/owners + +approvers: +- spiffxp +reviewers: +- spiffxp diff --git a/hack/testdata/levee/levee-config.yaml b/hack/testdata/levee/levee-config.yaml new file mode 100644 index 00000000000..d2256ec1cec --- /dev/null +++ b/hack/testdata/levee/levee-config.yaml @@ -0,0 +1,60 @@ +# This file holds configuration for taint propagation analysis of Kubernetes source via go-flow-levee. +# It defines sources which may contain credentials and sinks where these should not be logged. +# Sources may be identified by the FieldTags element, or by matching package, type, and field explicitly in the Sources element. +# Sanitizers permit sources to safely reach a sink. +# False positives may be suppressed in the Exclude block. +# Note that `*RE` keys have regexp values. +--- +# These field tags were introduced by KEP-1753 to fields which may contain credentials +FieldTags: + - Key: "datapolicy" + Val: "security-key" + - Key: "datapolicy" + Val: "token" + - Key: "datapolicy" + Val: "password" + +# This preliminary collection of source types should be removed once +# KEP-1753 adds tags to the relevant fields. +Sources: + - PackageRE: "" + TypeRE: "^(?:admin)?Secret$|Token" + FieldRE: "" + - PackageRE: "k8s.io/client-go/tools/clientcmd/api(?:/v1)?" + TypeRE: "^(?:Named)?AuthInfo$" + FieldRE: "" + - PackageRE: "k8s.io/kubernetes/pkg/credentialprovider" + TypeRE: "DockerConfigEntry" + FieldRE: "Password" + - PackageRE: "k8s.io/client-go/transport" + TypeRE: "requestInfo" + FieldRE: "RequestHeaders" + - PackageRE: "k8s.io/kubernetes/pkg/volume/rbd" + TypeRE: "rbdMounter" + FieldRE: "adminSecret" + - PackageRE: "^k8s.io/client-go/rest$" + TypeRE: "^TLSClientConfig$" + FieldRE: "Password|BearerToken$|" + - PackageRE: "^k8s.io/client-go/rest$" + TypeRE: "^Config$" + FieldRE: "Password|BearerToken$|" + +# Sinks are functions that should not be called with source or source-tainted arguments. +# This configuration should capture all log unfiltered log calls. +Sinks: + - PackageRE: "\bk?log\b" + ReceiverRE: "" + MethodRE: "Info|Warning|Error|Fatal|Exit" + - PackageRE: "\bk?log\b" + ReceiverRE: "Verbose" + MethodRE: "Info|Error" + +# Sanitizers permit a source to reach a sink by explicitly removing the source data. +Sanitizers: + - PackageRE: "k8s.io/client-go/transport" + MethodRE: "maskValue" + +# False positives may be suppressed here. +# Exclude reporting within a given function by specifying it similar to Sinks, i.e., +# PackageRE | ReceiverRE | MethodRE regexp +Exclude: [] diff --git a/hack/tools/LICENSES/vendor/github.com/google/go-flow-levee/LICENSE b/hack/tools/LICENSES/vendor/github.com/google/go-flow-levee/LICENSE new file mode 100644 index 00000000000..f37166402fb --- /dev/null +++ b/hack/tools/LICENSES/vendor/github.com/google/go-flow-levee/LICENSE @@ -0,0 +1,206 @@ += vendor/github.com/google/go-flow-levee licensed under: = + + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + 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. + += vendor/github.com/google/go-flow-levee/LICENSE 3b83ef96387f14655fc854ddc3c6bd57 diff --git a/hack/tools/LICENSES/vendor/gopkg.in/yaml.v2/LICENSE b/hack/tools/LICENSES/vendor/gopkg.in/yaml.v2/LICENSE new file mode 100644 index 00000000000..88be4ca082d --- /dev/null +++ b/hack/tools/LICENSES/vendor/gopkg.in/yaml.v2/LICENSE @@ -0,0 +1,205 @@ += vendor/gopkg.in/yaml.v2 licensed under: = + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + 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. + += vendor/gopkg.in/yaml.v2/LICENSE e3fc50a88d0a364313df4b21ef20c29e diff --git a/hack/tools/LICENSES/vendor/sigs.k8s.io/yaml/LICENSE b/hack/tools/LICENSES/vendor/sigs.k8s.io/yaml/LICENSE new file mode 100644 index 00000000000..78bfa7393e8 --- /dev/null +++ b/hack/tools/LICENSES/vendor/sigs.k8s.io/yaml/LICENSE @@ -0,0 +1,54 @@ += vendor/sigs.k8s.io/yaml licensed under: = + +The MIT License (MIT) + +Copyright (c) 2014 Sam Ghods + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + + +Copyright (c) 2012 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + += vendor/sigs.k8s.io/yaml/LICENSE 0ceb9ff3b27d3a8cf451ca3785d73c71 diff --git a/hack/tools/go.mod b/hack/tools/go.mod index c73aa3174da..a73c4356da4 100644 --- a/hack/tools/go.mod +++ b/hack/tools/go.mod @@ -7,6 +7,7 @@ require ( github.com/bazelbuild/buildtools v0.0.0-20200228172928-c9d9e342afdb github.com/cespare/prettybench v0.0.0-20150116022406-03b8cfe5406c github.com/client9/misspell v0.3.4 + github.com/google/go-flow-levee v0.1.4-0.20201102181719-72c65d71b1d3 golang.org/x/lint v0.0.0-20200302205851-738671d3881b gotest.tools v2.2.0+incompatible gotest.tools/gotestsum v0.3.5 diff --git a/hack/tools/go.sum b/hack/tools/go.sum index 57d0c07dcf3..458c0b2c274 100644 --- a/hack/tools/go.sum +++ b/hack/tools/go.sum @@ -190,6 +190,10 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w= github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-cmp v0.5.2 h1:X2ev0eStA3AbceY54o37/0PQ/UWqKEiiO2dKL5OPaFM= +github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/go-flow-levee v0.1.4-0.20201102181719-72c65d71b1d3 h1:yyMdeOKc/LqowWbSC/8KnGm++FWbwVeZw1aQaj9F3zQ= +github.com/google/go-flow-levee v0.1.4-0.20201102181719-72c65d71b1d3/go.mod h1:Uiz/03u4gZX0ldjN5Tj5+fyZN1v6VK22uKRcpQCDsyE= github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ= github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck= github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs= @@ -610,6 +614,7 @@ golang.org/x/tools v0.0.0-20200321224714-0d839f3cf2ed/go.mod h1:Sl4aGygMT6LrqrWc golang.org/x/tools v0.0.0-20200324003944-a576cf524670/go.mod h1:Sl4aGygMT6LrqrWclx+PTx3U+LnKx/seiNR+3G19Ar8= golang.org/x/tools v0.0.0-20200331202046-9d5940d49312/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20200414032229-332987a829c3/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= +golang.org/x/tools v0.0.0-20200416214402-fc959738d646/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20200422022333-3d57cf2e726e/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20200519015757-0d0afa43d58a/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= golang.org/x/tools v0.0.0-20200625211823-6506e20df31f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= @@ -719,5 +724,7 @@ mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZI rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0= rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA= +sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q= +sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc= sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4 h1:JPJh2pk3+X4lXAkZIk2RuE/7/FoK9maXw+TNPJhVS/c= sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0= diff --git a/hack/tools/tools.go b/hack/tools/tools.go index 21e4c981ba0..9a182289a85 100644 --- a/hack/tools/tools.go +++ b/hack/tools/tools.go @@ -21,6 +21,7 @@ package tools import ( // linting tools _ "github.com/client9/misspell/cmd/misspell" + _ "github.com/google/go-flow-levee/cmd/levee" _ "golang.org/x/lint/golint" _ "honnef.co/go/tools/cmd/staticcheck" diff --git a/hack/verify-govet-levee.sh b/hack/verify-govet-levee.sh new file mode 100755 index 00000000000..88c32a1d730 --- /dev/null +++ b/hack/verify-govet-levee.sh @@ -0,0 +1,42 @@ +#!/usr/bin/env bash + +# Copyright 2020 The Kubernetes 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. + +# This script vets each package by `levee`. +# Usage: `hack/verify-govet-levee.sh`. + +set -o errexit +set -o pipefail + +KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/.. +source "${KUBE_ROOT}/hack/lib/init.sh" +source "${KUBE_ROOT}/hack/lib/util.sh" + +kube::golang::verify_go_version + +# Ensure that we find the binaries we build before anything else. +export GOBIN="${KUBE_OUTPUT_BINPATH}" +PATH="${GOBIN}:${PATH}" + +# Install levee +pushd "${KUBE_ROOT}/hack/tools" >/dev/null + GO111MODULE=on go install github.com/google/go-flow-levee/cmd/levee +popd >/dev/null + +# Prefer full path for interaction with make vet +LEVEE_BIN="$(which levee)" +CONFIG_FILE="${KUBE_ROOT}/hack/testdata/levee/levee-config.yaml" + +"${KUBE_ROOT}"/hack/verify-govet.sh -vettool="${LEVEE_BIN}" -config="${CONFIG_FILE}"