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kube-bench/cfg/rke-cis-1.7/node.yaml

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Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s (#1523) * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * release: prepare v0.6.15 (#1455) Signed-off-by: chenk <hen.keinan@gmail.com> * build(deps): bump golang from 1.19.4 to 1.20.4 (#1436) Bumps golang from 1.19.4 to 1.20.4. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * build(deps): bump actions/setup-go from 3 to 4 (#1402) Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3 to 4. - [Release notes](https://github.com/actions/setup-go/releases) - [Commits](https://github.com/actions/setup-go/compare/v3...v4) --- updated-dependencies: - dependency-name: actions/setup-go dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: chenk <hen.keinan@gmail.com> * Fix test_items in cis-1.7 - node - 4.2.12 (#1469) Related issue: https://github.com/aquasecurity/kube-bench/issues/1468 * Fix node.yaml - 4.1.7 and 4.1.8 audit by adding uniq (#1472) * chore: add fips compliant images (#1473) For fips complaince we need to generate fips compliant images. As part of this change, we will create new kube-bench image which will be fips compliant. Image name follows this tag pattern <version>-ubi-fips * release: prepare v0.6.16-rc (#1476) * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16 official (#1479) Signed-off-by: chenk <hen.keinan@gmail.com> * Update job.yaml (#1477) * Update job.yaml Fix on typo for image version * chore: sync with upstream Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> Co-authored-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.17 (#1480) Signed-off-by: chenk <hen.keinan@gmail.com> * Bump docker base images (#1465) During a recent CVE scan we found kube-bench to use `alpine:3.18` as the final image which has a known high CVE. ``` grype aquasec/kube-bench:v0.6.15 ✔ Vulnerability DB [no update available] ✔ Loaded image ✔ Parsed image ✔ Cataloged packages [73 packages] ✔ Scanning image... [4 vulnerabilities] ├── 0 critical, 4 high, 0 medium, 0 low, 0 negligible └── 4 fixed NAME INSTALLED FIXED-IN TYPE VULNERABILITY SEVERITY libcrypto3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High libssl3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High openssl 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High ``` The CVE in question was addressed in the latest [alpine release](https://www.alpinelinux.org/posts/Alpine-3.15.9-3.16.6-3.17.4-3.18.2-released.html), hence updating the dockerfiles accordingly * build(deps): bump golang from 1.20.4 to 1.20.6 (#1475) Bumps golang from 1.20.4 to 1.20.6. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. * RKE/RKE2 CIS Benchmarks Updated the order of checks for RKE and RKE2 Platforms. * fixed vulnerabilities|upgraded package golang.org/x/net to version v0.17.0 * Error handling for RKE Detection Pre-requisites * Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides#hardening-guides-and-benchmark-versions, kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. updated documentation specific to added rancher platforms * addressed review comments 1.Implemented IsRKE functionality in kube-bench 2. Removed containerd from global level config and accommodated in individual config file 3. Corrected the control id from 1.2.25 to 1.2.23 in master.yaml(k3s-cis-1.23 and k3s-cis-1.24) * Removed unncessary dependency - kubernetes-provider-detector --------- Signed-off-by: chenk <hen.keinan@gmail.com> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: chenk <hen.keinan@gmail.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Andy Pitcher <andy.pitcher@suse.com> Co-authored-by: Devendra Turkar <devendra.turkar@gmail.com> Co-authored-by: Guille Vigil <contact@guillermotti.com> Co-authored-by: Jonas-Taha El Sesiy <jonas-taha.elsesiy@snowflake.com>
2023-11-26 10:27:38 +00:00
---
controls:
version: "rke-cis-1.7"
id: 4
text: "Worker Node Security Configuration"
type: "node"
groups:
- id: 4.1
text: "Worker Node Configuration Files"
checks:
- id: 4.1.1
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
type: "skip"
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
tests:
test_items:
- flag: "permissions"
compare:
op: bitmask
value: "600"
remediation: |
Run the below command (based on the file location on your system) on the each worker node.
For example, chmod 600 $kubeletsvc
Not Applicable - Clusters provisioned by RKE doesnt require or maintain a configuration file for the kubelet service.
All configuration is passed in as arguments at container run time.
scored: true
- id: 4.1.2
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
type: "skip"
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
tests:
test_items:
- flag: root:root
remediation: |
Run the below command (based on the file location on your system) on the each worker node.
For example,
chown root:root $kubeletsvc
Not Applicable - Clusters provisioned by RKE doesnt require or maintain a configuration file for the kubelet service.
All configuration is passed in as arguments at container run time.
scored: true
- id: 4.1.3
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Automated)"
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
tests:
bin_op: or
test_items:
- flag: "permissions"
set: true
compare:
op: bitmask
value: "600"
remediation: |
Run the below command (based on the file location on your system) on the each worker node.
For example,
chmod 600 $proxykubeconfig
scored: true
- id: 4.1.4
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Automated)"
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
tests:
bin_op: or
test_items:
- flag: root:root
remediation: |
Run the below command (based on the file location on your system) on the each worker node.
For example, chown root:root $proxykubeconfig
scored: true
- id: 4.1.5
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
tests:
test_items:
- flag: "permissions"
compare:
op: bitmask
value: "600"
remediation: |
Run the below command (based on the file location on your system) on the each worker node.
For example,
chmod 600 $kubeletkubeconfig
scored: true
- id: 4.1.6
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
tests:
test_items:
- flag: root:root
remediation: |
Run the below command (based on the file location on your system) on the each worker node.
For example,
chown root:root $kubeletkubeconfig
scored: true
- id: 4.1.7
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Automated)"
audit: "stat -c permissions=%a /etc/kubernetes/ssl/kube-ca.pem"
Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s (#1523) * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * release: prepare v0.6.15 (#1455) Signed-off-by: chenk <hen.keinan@gmail.com> * build(deps): bump golang from 1.19.4 to 1.20.4 (#1436) Bumps golang from 1.19.4 to 1.20.4. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * build(deps): bump actions/setup-go from 3 to 4 (#1402) Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3 to 4. - [Release notes](https://github.com/actions/setup-go/releases) - [Commits](https://github.com/actions/setup-go/compare/v3...v4) --- updated-dependencies: - dependency-name: actions/setup-go dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: chenk <hen.keinan@gmail.com> * Fix test_items in cis-1.7 - node - 4.2.12 (#1469) Related issue: https://github.com/aquasecurity/kube-bench/issues/1468 * Fix node.yaml - 4.1.7 and 4.1.8 audit by adding uniq (#1472) * chore: add fips compliant images (#1473) For fips complaince we need to generate fips compliant images. As part of this change, we will create new kube-bench image which will be fips compliant. Image name follows this tag pattern <version>-ubi-fips * release: prepare v0.6.16-rc (#1476) * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16 official (#1479) Signed-off-by: chenk <hen.keinan@gmail.com> * Update job.yaml (#1477) * Update job.yaml Fix on typo for image version * chore: sync with upstream Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> Co-authored-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.17 (#1480) Signed-off-by: chenk <hen.keinan@gmail.com> * Bump docker base images (#1465) During a recent CVE scan we found kube-bench to use `alpine:3.18` as the final image which has a known high CVE. ``` grype aquasec/kube-bench:v0.6.15 ✔ Vulnerability DB [no update available] ✔ Loaded image ✔ Parsed image ✔ Cataloged packages [73 packages] ✔ Scanning image... [4 vulnerabilities] ├── 0 critical, 4 high, 0 medium, 0 low, 0 negligible └── 4 fixed NAME INSTALLED FIXED-IN TYPE VULNERABILITY SEVERITY libcrypto3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High libssl3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High openssl 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High ``` The CVE in question was addressed in the latest [alpine release](https://www.alpinelinux.org/posts/Alpine-3.15.9-3.16.6-3.17.4-3.18.2-released.html), hence updating the dockerfiles accordingly * build(deps): bump golang from 1.20.4 to 1.20.6 (#1475) Bumps golang from 1.20.4 to 1.20.6. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. * RKE/RKE2 CIS Benchmarks Updated the order of checks for RKE and RKE2 Platforms. * fixed vulnerabilities|upgraded package golang.org/x/net to version v0.17.0 * Error handling for RKE Detection Pre-requisites * Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides#hardening-guides-and-benchmark-versions, kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. updated documentation specific to added rancher platforms * addressed review comments 1.Implemented IsRKE functionality in kube-bench 2. Removed containerd from global level config and accommodated in individual config file 3. Corrected the control id from 1.2.25 to 1.2.23 in master.yaml(k3s-cis-1.23 and k3s-cis-1.24) * Removed unncessary dependency - kubernetes-provider-detector --------- Signed-off-by: chenk <hen.keinan@gmail.com> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: chenk <hen.keinan@gmail.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Andy Pitcher <andy.pitcher@suse.com> Co-authored-by: Devendra Turkar <devendra.turkar@gmail.com> Co-authored-by: Guille Vigil <contact@guillermotti.com> Co-authored-by: Jonas-Taha El Sesiy <jonas-taha.elsesiy@snowflake.com>
2023-11-26 10:27:38 +00:00
tests:
test_items:
- flag: "permissions"
compare:
op: bitmask
value: "600"
remediation: |
Run the following command to modify the file permissions of the
--client-ca-file chmod 600 <filename>
scored: true
- id: 4.1.8
text: "Ensure that the client certificate authorities file ownership is set to root:root (Automated)"
audit: "stat -c %U:%G /etc/kubernetes/ssl/kube-ca.pem"
Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s (#1523) * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * release: prepare v0.6.15 (#1455) Signed-off-by: chenk <hen.keinan@gmail.com> * build(deps): bump golang from 1.19.4 to 1.20.4 (#1436) Bumps golang from 1.19.4 to 1.20.4. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * build(deps): bump actions/setup-go from 3 to 4 (#1402) Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3 to 4. - [Release notes](https://github.com/actions/setup-go/releases) - [Commits](https://github.com/actions/setup-go/compare/v3...v4) --- updated-dependencies: - dependency-name: actions/setup-go dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: chenk <hen.keinan@gmail.com> * Fix test_items in cis-1.7 - node - 4.2.12 (#1469) Related issue: https://github.com/aquasecurity/kube-bench/issues/1468 * Fix node.yaml - 4.1.7 and 4.1.8 audit by adding uniq (#1472) * chore: add fips compliant images (#1473) For fips complaince we need to generate fips compliant images. As part of this change, we will create new kube-bench image which will be fips compliant. Image name follows this tag pattern <version>-ubi-fips * release: prepare v0.6.16-rc (#1476) * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16 official (#1479) Signed-off-by: chenk <hen.keinan@gmail.com> * Update job.yaml (#1477) * Update job.yaml Fix on typo for image version * chore: sync with upstream Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> Co-authored-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.17 (#1480) Signed-off-by: chenk <hen.keinan@gmail.com> * Bump docker base images (#1465) During a recent CVE scan we found kube-bench to use `alpine:3.18` as the final image which has a known high CVE. ``` grype aquasec/kube-bench:v0.6.15 ✔ Vulnerability DB [no update available] ✔ Loaded image ✔ Parsed image ✔ Cataloged packages [73 packages] ✔ Scanning image... [4 vulnerabilities] ├── 0 critical, 4 high, 0 medium, 0 low, 0 negligible └── 4 fixed NAME INSTALLED FIXED-IN TYPE VULNERABILITY SEVERITY libcrypto3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High libssl3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High openssl 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High ``` The CVE in question was addressed in the latest [alpine release](https://www.alpinelinux.org/posts/Alpine-3.15.9-3.16.6-3.17.4-3.18.2-released.html), hence updating the dockerfiles accordingly * build(deps): bump golang from 1.20.4 to 1.20.6 (#1475) Bumps golang from 1.20.4 to 1.20.6. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. * RKE/RKE2 CIS Benchmarks Updated the order of checks for RKE and RKE2 Platforms. * fixed vulnerabilities|upgraded package golang.org/x/net to version v0.17.0 * Error handling for RKE Detection Pre-requisites * Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides#hardening-guides-and-benchmark-versions, kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. updated documentation specific to added rancher platforms * addressed review comments 1.Implemented IsRKE functionality in kube-bench 2. Removed containerd from global level config and accommodated in individual config file 3. Corrected the control id from 1.2.25 to 1.2.23 in master.yaml(k3s-cis-1.23 and k3s-cis-1.24) * Removed unncessary dependency - kubernetes-provider-detector --------- Signed-off-by: chenk <hen.keinan@gmail.com> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: chenk <hen.keinan@gmail.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Andy Pitcher <andy.pitcher@suse.com> Co-authored-by: Devendra Turkar <devendra.turkar@gmail.com> Co-authored-by: Guille Vigil <contact@guillermotti.com> Co-authored-by: Jonas-Taha El Sesiy <jonas-taha.elsesiy@snowflake.com>
2023-11-26 10:27:38 +00:00
tests:
test_items:
- flag: root:root
remediation: |
Run the following command to modify the ownership of the --client-ca-file.
chown root:root <filename>
scored: true
- id: 4.1.9
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
type: "skip"
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
tests:
test_items:
- flag: "permissions"
compare:
op: bitmask
value: "600"
remediation: |
Run the following command (using the config file location identified in the Audit step)
chmod 600 $kubeletconf
Not Applicable - Clusters provisioned by RKE do not require or maintain a configuration file for the kubelet.
All configuration is passed in as arguments at container run time.
scored: true
- id: 4.1.10
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Manual)"
type: "skip"
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
tests:
test_items:
- flag: root:root
remediation: |
Run the following command (using the config file location identified in the Audit step)
chown root:root $kubeletconf
Not Applicable - Clusters provisioned by RKE doesnt require or maintain a configuration file for the kubelet.
All configuration is passed in as arguments at container run time.
scored: false
- id: 4.2
text: "Kubelet"
checks:
- id: 4.2.1
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: "--anonymous-auth"
path: '{.authentication.anonymous.enabled}'
compare:
op: eq
value: false
remediation: |
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
`false`.
If using executable arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
`--anonymous-auth=false`
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.2
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --authorization-mode
path: '{.authorization.mode}'
compare:
op: nothave
value: AlwaysAllow
remediation: |
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
using executable arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameter in KUBELET_AUTHZ_ARGS variable.
--authorization-mode=Webhook
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.3
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --client-ca-file
path: '{.authentication.x509.clientCAFile}'
remediation: |
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
the location of the client CA file.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameter in KUBELET_AUTHZ_ARGS variable.
--client-ca-file=<path/to/client-ca-file>
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.4
text: "Verify that the --read-only-port argument is set to 0 (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
bin_op: or
test_items:
- flag: "--read-only-port"
path: '{.readOnlyPort}'
compare:
op: eq
value: 0
- flag: "--read-only-port"
path: '{.readOnlyPort}'
set: false
remediation: |
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
--read-only-port=0
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.5
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --streaming-connection-idle-timeout
path: '{.streamingConnectionIdleTimeout}'
compare:
op: noteq
value: 0
- flag: --streaming-connection-idle-timeout
path: '{.streamingConnectionIdleTimeout}'
set: false
bin_op: or
remediation: |
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
value other than 0.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
--streaming-connection-idle-timeout=5m
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: false
- id: 4.2.6
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --make-iptables-util-chains
path: '{.makeIPTablesUtilChains}'
compare:
op: eq
value: true
- flag: --make-iptables-util-chains
path: '{.makeIPTablesUtilChains}'
set: false
bin_op: or
remediation: |
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
remove the --make-iptables-util-chains argument from the
KUBELET_SYSTEM_PODS_ARGS variable.
Based on your system, restart the kubelet service. For example:
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.7
text: "Ensure that the --hostname-override argument is not set (Manual)"
# This is one of those properties that can only be set as a command line argument.
# To check if the property is set as expected, we need to parse the kubelet command
# instead reading the Kubelet Configuration file.
type: "skip"
audit: "/bin/ps -fC $kubeletbin "
tests:
test_items:
- flag: --hostname-override
set: false
remediation: |
Edit the kubelet service file $kubeletsvc
on each worker node and remove the --hostname-override argument from the
KUBELET_SYSTEM_PODS_ARGS variable.
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
Not Applicable - Clusters provisioned by RKE set the --hostname-override to avoid any hostname configuration errors
scored: false
- id: 4.2.8
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --event-qps
path: '{.eventRecordQPS}'
compare:
op: gte
value: 0
- flag: --event-qps
path: '{.eventRecordQPS}'
set: false
bin_op: or
remediation: |
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: false
- id: 4.2.9
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
type: "skip"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --tls-cert-file
path: '{.tlsCertFile}'
- flag: --tls-private-key-file
path: '{.tlsPrivateKeyFile}'
remediation: |
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
to the location of the corresponding private key file.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
--tls-cert-file=<path/to/tls-certificate-file>
--tls-private-key-file=<path/to/tls-key-file>
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
Permissive - When generating serving certificates, functionality could break in conjunction with hostname overrides which are required for certain cloud providers.
scored: false
- id: 4.2.10
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --rotate-certificates
path: '{.rotateCertificates}'
compare:
op: eq
value: true
- flag: --rotate-certificates
path: '{.rotateCertificates}'
set: false
bin_op: or
remediation: |
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
remove it altogether to use the default value.
If using command line arguments, edit the kubelet service file
$kubeletsvc on each worker node and
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
variable.
Based on your system, restart the kubelet service. For example,
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.11
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
type: "skip"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
bin_op: or
test_items:
- flag: RotateKubeletServerCertificate
path: '{.featureGates.RotateKubeletServerCertificate}'
compare:
op: nothave
value: false
- flag: RotateKubeletServerCertificate
path: '{.featureGates.RotateKubeletServerCertificate}'
set: false
remediation: |
Edit the kubelet service file $kubeletsvc
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
--feature-gates=RotateKubeletServerCertificate=true
Based on your system, restart the kubelet service. For example:
systemctl daemon-reload
systemctl restart kubelet.service
Not Applicable - Clusters provisioned by RKE handles certificate rotation directly through RKE.
scored: false
- id: 4.2.12
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Automated)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --tls-cipher-suites
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
compare:
op: valid_elements
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
remediation: |
If using a Kubelet config file, edit the file to set `tlsCipherSuites` to
Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s (#1523) * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * add Support VMware Tanzu(TKGI) Benchmarks v1.2.53 with this change, we are adding 1. latest kubernetes cis benchmarks for VMware Tanzu1.2.53 2. logic to kube-bench so that kube-bench can auto detect vmware platform, will be able to execute the respective vmware tkgi compliance checks. 3. job-tkgi.yaml file to run the benchmark as a job in tkgi cluster Reference Document for checks: https://network.pivotal.io/products/p-compliance-scanner/#/releases/1248397 * release: prepare v0.6.15 (#1455) Signed-off-by: chenk <hen.keinan@gmail.com> * build(deps): bump golang from 1.19.4 to 1.20.4 (#1436) Bumps golang from 1.19.4 to 1.20.4. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * build(deps): bump actions/setup-go from 3 to 4 (#1402) Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3 to 4. - [Release notes](https://github.com/actions/setup-go/releases) - [Commits](https://github.com/actions/setup-go/compare/v3...v4) --- updated-dependencies: - dependency-name: actions/setup-go dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: chenk <hen.keinan@gmail.com> * Fix test_items in cis-1.7 - node - 4.2.12 (#1469) Related issue: https://github.com/aquasecurity/kube-bench/issues/1468 * Fix node.yaml - 4.1.7 and 4.1.8 audit by adding uniq (#1472) * chore: add fips compliant images (#1473) For fips complaince we need to generate fips compliant images. As part of this change, we will create new kube-bench image which will be fips compliant. Image name follows this tag pattern <version>-ubi-fips * release: prepare v0.6.16-rc (#1476) * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16-rc Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.16 official (#1479) Signed-off-by: chenk <hen.keinan@gmail.com> * Update job.yaml (#1477) * Update job.yaml Fix on typo for image version * chore: sync with upstream Signed-off-by: chenk <hen.keinan@gmail.com> --------- Signed-off-by: chenk <hen.keinan@gmail.com> Co-authored-by: chenk <hen.keinan@gmail.com> * release: prepare v0.6.17 (#1480) Signed-off-by: chenk <hen.keinan@gmail.com> * Bump docker base images (#1465) During a recent CVE scan we found kube-bench to use `alpine:3.18` as the final image which has a known high CVE. ``` grype aquasec/kube-bench:v0.6.15 ✔ Vulnerability DB [no update available] ✔ Loaded image ✔ Parsed image ✔ Cataloged packages [73 packages] ✔ Scanning image... [4 vulnerabilities] ├── 0 critical, 4 high, 0 medium, 0 low, 0 negligible └── 4 fixed NAME INSTALLED FIXED-IN TYPE VULNERABILITY SEVERITY libcrypto3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High libssl3 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High openssl 3.1.0-r4 3.1.1-r0 apk CVE-2023-2650 High ``` The CVE in question was addressed in the latest [alpine release](https://www.alpinelinux.org/posts/Alpine-3.15.9-3.16.6-3.17.4-3.18.2-released.html), hence updating the dockerfiles accordingly * build(deps): bump golang from 1.20.4 to 1.20.6 (#1475) Bumps golang from 1.20.4 to 1.20.6. --- updated-dependencies: - dependency-name: golang dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Add CIS Benchmarks support to Rancher Distributions RKE/RKE2/K3s Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. * RKE/RKE2 CIS Benchmarks Updated the order of checks for RKE and RKE2 Platforms. * fixed vulnerabilities|upgraded package golang.org/x/net to version v0.17.0 * Error handling for RKE Detection Pre-requisites * Based on the information furnished in https://ranchermanager.docs.rancher.com/v2.7/pages-for-subheaders/rancher-hardening-guides#hardening-guides-and-benchmark-versions, kube-bench executes CIS-1.23 (Kubernetes v1.23) , CIS-1.24(Kubernetes v1.24),CIS-1.7 (Kubernetes v1.25,v1.26,v1.27) CIS Benchmarks of respective distributions. updated documentation specific to added rancher platforms * addressed review comments 1.Implemented IsRKE functionality in kube-bench 2. Removed containerd from global level config and accommodated in individual config file 3. Corrected the control id from 1.2.25 to 1.2.23 in master.yaml(k3s-cis-1.23 and k3s-cis-1.24) * Removed unncessary dependency - kubernetes-provider-detector --------- Signed-off-by: chenk <hen.keinan@gmail.com> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: chenk <hen.keinan@gmail.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Andy Pitcher <andy.pitcher@suse.com> Co-authored-by: Devendra Turkar <devendra.turkar@gmail.com> Co-authored-by: Guille Vigil <contact@guillermotti.com> Co-authored-by: Jonas-Taha El Sesiy <jonas-taha.elsesiy@snowflake.com>
2023-11-26 10:27:38 +00:00
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
or to a subset of these values.
If using executable arguments, edit the kubelet service file
$kubeletsvc on each worker node and
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
Based on your system, restart the kubelet service. For example:
systemctl daemon-reload
systemctl restart kubelet.service
scored: true
- id: 4.2.13
text: "Ensure that a limit is set on pod PIDs (Manual)"
audit: "/bin/ps -fC $kubeletbin"
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
tests:
test_items:
- flag: --pod-max-pids
path: '{.podPidsLimit}'
remediation: |
Decide on an appropriate level for this parameter and set it,
either via the --pod-max-pids command line parameter or the PodPidsLimit configuration file setting.
scored: false