Removed cosign controls from default workload scan FW

[dwertent]

User description

Overview

The cosign-related controls are not part of the security view, so there is no reason to run them, especially because they greatly impact the time it takes to scan.

Here are the scanning results:

Kubescape security posture overview for repo: https://github.com/armosec/system-tests

Workload
┌─────────────────────┬───────────┬────────────────────────────────────────────────────────────────────────────┐
│ Control name        │ Resources │ View details                                                               │
├─────────────────────┼───────────┼────────────────────────────────────────────────────────────────────────────┤
│ HostNetwork access  │     1     │ $ kubescape scan control C-0041 https://github.com/armosec/system-tests -v │
│ HostPath mount      │     3     │ $ kubescape scan control C-0048 https://github.com/armosec/system-tests -v │
│ Non-root containers │    169    │ $ kubescape scan control C-0013 https://github.com/armosec/system-tests -v │
└─────────────────────┴───────────┴────────────────────────────────────────────────────────────────────────────┘

Access control
┌─────────────────────────┬───────────┬────────────────────────────────────────────────────────────────────────────┐
│ Control name            │ Resources │ View details                                                               │
├─────────────────────────┼───────────┼────────────────────────────────────────────────────────────────────────────┤
│ Administrative Roles    │     1     │ $ kubescape scan control C-0035 https://github.com/armosec/system-tests -v │
│ Data Destruction        │     1     │ $ kubescape scan control C-0007 https://github.com/armosec/system-tests -v │
│ Exec into container     │     1     │ $ kubescape scan control C-0002 https://github.com/armosec/system-tests -v │
│ List Kubernetes secrets │     1     │ $ kubescape scan control C-0015 https://github.com/armosec/system-tests -v │
└─────────────────────────┴───────────┴────────────────────────────────────────────────────────────────────────────┘

Secrets
┌─────────────────────────────────────────────────┬───────────┬────────────────────────────────────────────────────────────────────────────┐
│ Control name                                    │ Resources │ View details                                                               │
├─────────────────────────────────────────────────┼───────────┼────────────────────────────────────────────────────────────────────────────┤
│ Applications credentials in configuration files │    21     │ $ kubescape scan control C-0012 https://github.com/armosec/system-tests -v │
└─────────────────────────────────────────────────┴───────────┴────────────────────────────────────────────────────────────────────────────┘

Network
┌────────────────────────┬───────────┬────────────────────────────────────────────────────────────────────────────┐
│ Control name           │ Resources │ View details                                                               │
├────────────────────────┼───────────┼────────────────────────────────────────────────────────────────────────────┤
│ Missing network policy │    169    │ $ kubescape scan control C-0260 https://github.com/armosec/system-tests -v │
└────────────────────────┴───────────┴────────────────────────────────────────────────────────────────────────────┘

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Type

enhancement

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Description

• Removed two cosign-related controls from the default workload scan framework to improve scan times and because they are not part of the security view.

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Changes walkthrough

	Relevant files
Enhancement	workloadscan.json Remove Cosign Controls from Workload Scan Framework            frameworks/workloadscan.json Removed the "Verify image signature" control (C-0236). Removed the "Check if signature exists" control (C-0237). +0/-12

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PR Description updated to latest commit (0cb3c1c)

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PR Review

⏱️ Estimated effort to review [1-5]	1, because the PR involves removing specific sections from a JSON configuration file, which is straightforward to review. The changes are clear and limited in scope.
🧪 Relevant tests	No
🔍 Possible issues	No
🔒 Security concerns	No

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[github-actions]

Summary:

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

[github-actions]

Summary:

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