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EIO-3: Rancher v2.4.3 CIS docs

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Nelson Roberts
2020-06-05 10:13:04 -07:00
committed by Catherine Luse
parent 7b5c3a78c2
commit 1bdd80d64a
9 changed files with 36 additions and 27 deletions
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content/rancher/v2.x/en/security/_index.md
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Hardening Guide Version | Rancher Version | CIS Benchmark Version | Kubernetes Version
------------------------|----------------|-----------------------|------------------
[Hardening Guide v2.4.3]({{<baseurl>}}/rancher/v2.x/en/security/hardening-2.4.3/) | Rancher v2.4.3 | Benchmark v1.5 | Kubernetes v1.15
[Hardening Guide v2.3.5]({{<baseurl>}}/rancher/v2.x/en/security/hardening-2.3.5/) | Rancher v2.3.5 | Benchmark v1.5 | Kubernetes v1.15
[Hardening Guide v2.3.3]({{<baseurl>}}/rancher/v2.x/en/security/hardening-2.3.3/) | Rancher v2.3.3 | Benchmark v1.4.1 | Kubernetes v1.14, v1.15, and v1.16
[Hardening Guide v2.3]({{<baseurl>}}/rancher/v2.x/en/security/hardening-2.3/) | Rancher v2.3.0-v2.3.2 | Benchmark v1.4.1 | Kubernetes v1.15
@@ -77,7 +78,8 @@ Each version of Rancher's self assessment guide corresponds to specific versions
Self Assessment Guide Version | Rancher Version | Hardening Guide Version | Kubernetes Version | CIS Benchmark Version
---------------------------|----------|---------|-------|-----
[Self Assessment Guide v2.3.5]({{<baseurl>}}/rancher/v2.x/en/security/benchmark-2.3.5/#cis-kubernetes-benchmark-1-5-0-rancher-2-3-5-+-with-kubernetes-1-15) | Rancher v2.3.5 | Hardening Guide v2.3.3 | Kubernetes v1.15 | Benchmark v1.5.0
[Self Assessment Guide v2.4.3]({{<baseurl>}}/rancher/v2.x/en/security/benchmark-2.4.3/#cis-kubernetes-benchmark-1-5-0-rancher-2-4-3-+-with-kubernetes-1-15) | Rancher v2.4.3 | Hardening Guide v2.4.3 | Kubernetes v1.15 | Benchmark v1.5
[Self Assessment Guide v2.3.5]({{<baseurl>}}/rancher/v2.x/en/security/benchmark-2.3.5/#cis-kubernetes-benchmark-1-5-0-rancher-2-3-5-+-with-kubernetes-1-15) | Rancher v2.3.5 | Hardening Guide v2.3.5 | Kubernetes v1.15 | Benchmark v1.5
[Self Assessment Guide v2.3.3]({{<baseurl>}}/rancher/v2.x/en/security/benchmark-2.3.3/#cis-kubernetes-benchmark-1-4-1-rancher-2-3-3-+-with-kubernetes-1-16) | Rancher v2.3.3 | Hardening Guide v2.3.3 | Kubernetes v1.16 | Benchmark v1.4.1
[Self Assessment Guide v2.3]({{<baseurl>}}/rancher/v2.x/en/security/benchmark-2.3/#cis-kubernetes-benchmark-1-4-1-rancher-2-3-0-2-3-2-with-kubernetes-1-15) | Rancher v2.3.0-2.3.2 | Hardening Guide v2.3 | Kubernetes v1.15 | Benchmark v1.4.1
[Self Assessment Guide v2.2]({{<baseurl>}}/rancher/v2.x/en/security/benchmark-2.2/) | Rancher v2.2.x | Hardening Guide v2.2 | Kubernetes v1.13 | Benchmark v1.4.0 and v1.4.1
content/rancher/v2.x/en/security/benchmark-2.1/_index.md
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---
title: CIS Benchmark Rancher Self-Assessment Guide v2.1
weight: 109
weight: 209
---
This document is a companion to the Rancher v2.1 security hardening guide. The hardening guide provides prescriptive guidance for hardening a production installation of Rancher, and this benchmark guide is meant to help you evaluate the level of security of the hardened cluster against each control in the benchmark.
content/rancher/v2.x/en/security/benchmark-2.2/_index.md
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---
title: CIS Benchmark Rancher Self-Assessment Guide v2.2
weight: 108
weight: 208
---
This document is a companion to the Rancher v2.2 security hardening guide. The hardening guide provides prescriptive guidance for hardening a production installation of Rancher, and this benchmark guide is meant to help you evaluate the level of security of the hardened cluster against each control in the benchmark.
content/rancher/v2.x/en/security/benchmark-2.3.3/_index.md
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---
title: CIS Benchmark Rancher Self-Assessment Guide - Rancher v2.3.3
weight: 106
weight: 206
---
This document is a companion to the Rancher v2.3.3 security hardening guide. The hardening guide provides prescriptive guidance for hardening a production installation of Rancher, and this benchmark guide is meant to help you evaluate the level of security of the hardened cluster against each control in the benchmark.
content/rancher/v2.x/en/security/benchmark-2.3.5/_index.md
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---
title: CIS Benchmark Rancher Self-Assessment Guide - v2.3.5
weight: 105
weight: 205
---
### CIS Kubernetes Benchmark 1.5 - Rancher 2.3.5 with Kubernetes 1.15
content/rancher/v2.x/en/security/benchmark-2.3/_index.md
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---
title: CIS Benchmark Rancher Self-Assessment Guide v2.3
weight: 107
weight: 207
---
This document is a companion to the Rancher v2.3 security hardening guide. The hardening guide provides prescriptive guidance for hardening a production installation of Rancher, and this benchmark guide is meant to help you evaluate the level of security of the hardened cluster against each control in the benchmark.
content/rancher/v2.x/en/security/benchmark-2.4.3/_index.md
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---
title: CIS Benchmark Rancher Self-Assessment Guide - v2.3.5
weight: 105
title: CIS Benchmark Rancher Self-Assessment Guide - v2.4.3
weight: 204
---
### CIS Kubernetes Benchmark 1.5 - Rancher 2.3.5 with Kubernetes 1.15
### CIS Kubernetes Benchmark v1.5 - Rancher v2.4.3 with Kubernetes v1.15
[Click here to download a PDF version of this document](https://releases.rancher.com/documents/security/2.3.5/Rancher_Benchmark_Assessment.pdf)
[Click here to download a PDF version of this document](https://releases.rancher.com/documents/security/2.4.3/Rancher_Benchmark_Assessment.pdf)
#### Overview
This document is a companion to the Rancher v2.3.5 security hardening guide. The hardening guide provides prescriptive guidance for hardening a production installation of Rancher, and this benchmark guide is meant to help you evaluate the level of security of the hardened cluster against each control in the benchmark.
This document is a companion to the Rancher v2.4.3 security hardening guide. The hardening guide provides prescriptive guidance for hardening a production installation of Rancher, and this benchmark guide is meant to help you evaluate the level of security of the hardened cluster against each control in the benchmark.
This guide corresponds to specific versions of the hardening guide, Rancher, Kubernetes, and the CIS Benchmark:
Self Assessment Guide Version | Rancher Version | Hardening Guide Version | Kubernetes Version | CIS Benchmark Version
---------------------------|----------|---------|-------|-----
Self Assessment Guide v2.3.5 | Rancher v2.3.5 | Hardening Guide v2.3.5 | Kubernetes v1.15 | Benchmark v1.5
Self Assessment Guide v2.4.3 | Rancher v2.4.3 | Hardening Guide v2.4.3 | Kubernetes v1.15 | Benchmark v1.5
Because Rancher and RKE install Kubernetes services as Docker containers, many of the control verification checks in the CIS Kubernetes Benchmark don't apply and will have a result of `Not Applicable`. This guide will walk through the various controls and provide updated example commands to audit compliance in Rancher-created clusters.
@@ -1813,7 +1813,7 @@ systemctl restart kubelet.service
**Expected result**:
```
'30m' is not equal to '0' OR '--streaming-connection-idle-timeout' is not present
'1800s' is not equal to '0' OR '--streaming-connection-idle-timeout' is not present
```
#### 4.2.6 Ensure that the ```--protect-kernel-defaults``` argument is set to `true` (Scored)
@@ -2001,13 +2001,20 @@ fi
accounts="$(kubectl --kubeconfig=${KUBECONFIG} get serviceaccounts -A -o json | jq -r '.items[] | select(.metadata.name=="default") | select((.automountServiceAccountToken == null) or (.automountServiceAccountToken == true)) | "fail \(.metadata.name) \(.metadata.namespace)"')"
if [[ "${accounts}" == "" ]]; then
echo "--pass"
exit 0
if [[ "${accounts}" != "" ]]; then
echo "fail: automountServiceAccountToken not false for accounts: ${accounts}"
exit 1
fi
echo ${accounts}
exit 1
default_binding="$(kubectl get rolebindings,clusterrolebindings -A -o json | jq -r '.items[] | select(.subjects[].kind=="ServiceAccount" and .subjects[].name=="default" and .metadata.name=="default").metadata.uid' | wc -l)"
if [[ "${default_binding}" -gt 0 ]]; then
echo "fail: default service accounts have non default bindings"
exit 1
fi
echo "--pass"
exit 0
```
**Audit Execution:**
content/rancher/v2.x/en/security/cve/_index.md
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---
title: Rancher CVEs and Resolutions
weight: 200
weight: 300
---
Rancher is committed to informing the community of security issues in our products. Rancher will publish CVEs (Common Vulnerabilities and Exposures) for issues we have resolved.
@@ -14,4 +14,4 @@ Rancher is committed to informing the community of security issues in our produc
| [CVE-2019-12303](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12303) | Project owners can inject extra fluentd logging configurations that makes it possible to read files or execute arbitrary commands inside the fluentd container. Reported by Tyler Welton from Untamed Theory. | 5 Jun 2019 | [Rancher v2.2.4](https://github.com/rancher/rancher/releases/tag/v2.2.4), [Rancher v2.1.10](https://github.com/rancher/rancher/releases/tag/v2.1.10) and [Rancher v2.0.15](https://github.com/rancher/rancher/releases/tag/v2.0.15) |
| [CVE-2019-13209](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13209) | The vulnerability is known as a [Cross-Site Websocket Hijacking attack](https://www.christian-schneider.net/CrossSiteWebSocketHijacking.html). This attack allows an exploiter to gain access to clusters managed by Rancher with the roles/permissions of a victim. It requires that a victim to be logged into a Rancher server and then access a third-party site hosted by the exploiter. Once that is accomplished, the exploiter is able to execute commands against the Kubernetes API with the permissions and identity of the victim. Reported by Matt Belisle and Alex Stevenson from Workiva. | 15 Jul 2019 | [Rancher v2.2.5](https://github.com/rancher/rancher/releases/tag/v2.2.5), [Rancher v2.1.11](https://github.com/rancher/rancher/releases/tag/v2.1.11) and [Rancher v2.0.16](https://github.com/rancher/rancher/releases/tag/v2.0.16) |
| [CVE-2019-14436](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14436) | The vulnerability allows a member of a project that has access to edit role bindings to be able to assign themselves or others a cluster level role granting them administrator access to that cluster. The issue was found and reported by Michal Lipinski at Nokia. | 5 Aug 2019 | [Rancher v2.2.7](https://github.com/rancher/rancher/releases/tag/v2.2.7) and [Rancher v2.1.12](https://github.com/rancher/rancher/releases/tag/v2.1.12) |
| [CVE-2019-14435](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14435) | This vulnerability allows authenticated users to potentially extract otherwise private data out of IPs reachable from system service containers used by Rancher. This can include but not only limited to services such as cloud provider metadata services. Although Rancher allow users to configure whitelisted domains for system service access, this flaw can still be exploited by a carefully crafted HTTP request. The issue was found and reported by Matt Belisle and Alex Stevenson at Workiva. | 5 Aug 2019 | [Rancher v2.2.7](https://github.com/rancher/rancher/releases/tag/v2.2.7) and [Rancher v2.1.12](https://github.com/rancher/rancher/releases/tag/v2.1.12) |
| [CVE-2019-14435](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14435) | This vulnerability allows authenticated users to potentially extract otherwise private data out of IPs reachable from system service containers used by Rancher. This can include but not only limited to services such as cloud provider metadata services. Although Rancher allow users to configure whitelisted domains for system service access, this flaw can still be exploited by a carefully crafted HTTP request. The issue was found and reported by Matt Belisle and Alex Stevenson at Workiva. | 5 Aug 2019 | [Rancher v2.2.7](https://github.com/rancher/rancher/releases/tag/v2.2.7) and [Rancher v2.1.12](https://github.com/rancher/rancher/releases/tag/v2.1.12) |
content/rancher/v2.x/en/security/hardening-2.4.3/_index.md
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---
title: Hardening Guide v2.3.5
weight: 100
title: Hardening Guide v2.4.3
weight: 99
---
This document provides prescriptive guidance for hardening a production installation of Rancher v2.3.5. It outlines the configurations and controls required to address Kubernetes benchmark controls from the Center for Information Security (CIS).
This document provides prescriptive guidance for hardening a production installation of Rancher v2.4.3. It outlines the configurations and controls required to address Kubernetes benchmark controls from the Center for Information Security (CIS).
> This hardening guide describes how to secure the nodes in your cluster, and it is recommended to follow this guide before installing Kubernetes.
@@ -11,16 +11,16 @@ This hardening guide is intended to be used with specific versions of the CIS Ku
Hardening Guide Version | Rancher Version | CIS Benchmark Version | Kubernetes Version
------------------------|----------------|-----------------------|------------------
Hardening Guide v2.3.5 | Rancher v2.3.5 | Benchmark v1.5 | Kubernetes 1.15
Hardening Guide v2.4.3 | Rancher v2.4.3 | Benchmark v1.5 | Kubernetes 1.15
[Click here to download a PDF version of this document](https://releases.rancher.com/documents/security/2.3.5/Rancher_Hardening_Guide.pdf)
[Click here to download a PDF version of this document](https://releases.rancher.com/documents/security/2.4.3/Rancher_Hardening_Guide.pdf)
### Overview
This document provides prescriptive guidance for hardening a production installation of Rancher v2.3.5 with Kubernetes v1.15. It outlines the configurations required to address Kubernetes benchmark controls from the Center for Information Security (CIS).
This document provides prescriptive guidance for hardening a production installation of Rancher v2.4.3 with Kubernetes v1.15. It outlines the configurations required to address Kubernetes benchmark controls from the Center for Information Security (CIS).
For more detail about evaluating a hardened cluster against the official CIS benchmark, refer to the [CIS Benchmark Rancher Self-Assessment Guide - Rancher v2.3.5]({{< baseurl >}}/rancher/v2.x/en/security/benchmark-2.3.5/).
For more detail about evaluating a hardened cluster against the official CIS benchmark, refer to the [CIS Benchmark Rancher Self-Assessment Guide - Rancher v2.4.3]({{< baseurl >}}/rancher/v2.x/en/security/benchmark-2.3.5/).
#### Known Issues