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Fix control C-0211 #501

Merged
merged 2 commits into from
Sep 4, 2023
Merged

Fix control C-0211 #501

merged 2 commits into from
Sep 4, 2023

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YiscahLevySilas1
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@YiscahLevySilas1 YiscahLevySilas1 commented Sep 3, 2023 •
edited by codiumai-pr-agent-free bot
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PR Type:

Bug fix, Tests

PR Description:

This PR fixes a typo in the security context parameter, changing 'systctls' to the correct 'sysctls'. The typo was present in various files including JSON, rego, and YAML files. The changes also include the addition of test cases to verify the correct behavior after the typo fix.

PR Main Files Walkthrough:

controls/C-0211-applysecuritycontexttoyourpodsandcontainers.json: Fixed the typo in the security context parameter from 'systctls' to 'sysctls'.
rules/set-sysctls-params/raw.rego: Updated the security context parameter from 'systctls' to 'sysctls' in the rego rules.
rules/set-sysctls-params/rule.metadata.json: Corrected the typo in the rule metadata from 'systctls' to 'sysctls'.
rules/set-sysctls-params/test/cronjob/expected.json: Updated the expected test results to reflect the corrected security context parameter.
rules/set-sysctls-params/test/cronjob/input/cronjob1.yaml: Added a new test case for a CronJob with the corrected security context parameter.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml: Added a new test case for a Pod with the corrected security context parameter.
rules/set-sysctls-params/test/pod/expected.json: Updated the expected test results to reflect the corrected security context parameter.
rules/set-sysctls-params/test/pod/input/pod1.yaml: Added a new test case for a Pod with the corrected security context parameter.
rules/set-sysctls-params/test/workload/expected.json: Updated the expected test results to reflect the corrected security context parameter.
rules/set-sysctls-params/test/workload/input/deployment1.yaml: Added a new test case for a Workload with the corrected security context parameter.

User Description:

Overview

PR to fix typo systctls --> sysctls.
Fixes issue #500

@YiscahLevySilas1
fix typo
1f794ed 
Signed-off-by: YiscahLevySilas1 <[email protected]>
@YiscahLevySilas1
add test case
3b2762d 
Signed-off-by: YiscahLevySilas1 <[email protected]>
github-advanced-security[bot]
github-advanced-security bot found potential problems Sep 3, 2023
View reviewed changes
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
metadata:
name: sysctl-example
spec:
securityContext:

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Code scanning / kubescape

CIS-4.4.2 Consider external secret storage

Consider the use of an external secrets storage and management system, instead of using Kubernetes Secrets directly, if you have more complex secret management needs. Ensure the solution requires authentication to access secrets, has auditing of access to and use of secrets, and encrypts secrets. Some solutions also make it easier to rotate secrets.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
- name: kernel.shm_rmid_forced
value: "0"
containers:
- name: sysctl-test-container

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Code scanning / kubescape

Allow privilege escalation

Attackers may gain access to a container and uplift its privilege to enable excessive capabilities.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
- name: kernel.shm_rmid_forced
value: "0"
containers:
- name: sysctl-test-container

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Code scanning / kubescape

Non-root containers

Potential attackers may gain access to a container and leverage its existing privileges to conduct an attack. Therefore, it is not recommended to deploy containers with root privileges unless it is absolutely necessary. This control identifies all the Pods running as root or can escalate to root.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
@@ -0,0 +1,15 @@
apiVersion: v1

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Code scanning / kubescape

Ingress and Egress blocked

Disable Ingress and Egress traffic on all pods wherever possible. It is recommended to define restrictive network policy on all new PODs, and then enable sources/destinations that this POD must communicate with.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
- name: kernel.shm_rmid_forced
value: "0"
containers:
- name: sysctl-test-container

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Code scanning / kubescape

Resource limits

CPU and memory resources should have a limit set for every container or a namespace to prevent resource exhaustion. This control identifies all the Pods without resource limit definitions by checking their yaml definition file as well as their namespace LimitRange objects. It is also recommended to use ResourceQuota object to restrict overall namespace resources, but this is not verified by this control.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
- name: kernel.shm_rmid_forced
value: "0"
containers:
- name: sysctl-test-container

Check warning

Code scanning / kubescape

CIS-5.7.2 Ensure that the seccomp profile is set to docker/default in your pod definitions

Enable `docker/default` seccomp profile in your pod definitions.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
apiVersion: v1
kind: Pod
metadata:
name: sysctl-example

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Code scanning / kubescape

CIS-5.7.4 The default namespace should not be used

Kubernetes provides a default namespace, where objects are placed if no namespace is specified for them. Placing objects in this namespace makes application of RBAC and other controls more difficult.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
- name: kernel.shm_rmid_forced
value: "0"
containers:
- name: sysctl-test-container

Check warning

Code scanning / kubescape

Linux hardening

Containers may be given more privileges than they actually need. This can increase the potential impact of a container compromise.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
- name: kernel.shm_rmid_forced
value: "0"
containers:
- name: sysctl-test-container

Check notice

Code scanning / kubescape

Immutable container filesystem

Mutable container filesystem can be abused to inject malicious code or data into containers. Use immutable (read-only) filesystem to limit potential attacks.
rules/set-sysctls-params/test/pod-pass/input/pod1.yaml
name: sysctl-example
spec:
securityContext:
sysctls:

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Code scanning / kubescape

CIS-5.7.3 Apply Security Context to Your Pods and Containers

Apply Security Context to Your Pods and Containers
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PR Analysis

  • 🎯 Main theme: Fixing a typo in security context parameter and adding relevant tests
  • 📝 PR summary: This PR addresses a typo in the security context parameter, changing 'systctls' to the correct 'sysctls'. The typo was present in various files including JSON, rego, and YAML files. The changes also include the addition of test cases to verify the correct behavior after the typo fix.
  • 📌 Type of PR: Bug fix
  • 🧪 Relevant tests added: Yes
  • 🔒 Security concerns: No security concerns found

PR Feedback

  • 💡 General suggestions: The PR is well-structured and the changes are clear. The typo fix is crucial as it could lead to potential security issues. The addition of test cases is appreciated as it helps to ensure the correct behavior of the code after the fix.

  • 🤖 Code feedback:

    • relevant file: rules/set-sysctls-params/raw.rego
      suggestion: Consider adding more comprehensive tests to cover all possible scenarios. [medium]
      relevant line: "+ not pod.spec.securityContext.sysctls"

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github-actions bot commented Sep 3, 2023

Summary:

  • License scan: failure
  • Credentials scan: success
  • Vulnerabilities scan: failure
  • Unit test: success
  • Go linting: success

@YiscahLevySilas1 YiscahLevySilas1 merged commit 5dc6974 into master Sep 4, 2023
@YiscahLevySilas1 YiscahLevySilas1 mentioned this pull request Sep 18, 2023
Closed
@YiscahLevySilas1 YiscahLevySilas1 deleted the fix-C-0211 branch February 11, 2024 09:50
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@dwertent dwertent dwertent approved these changes

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