Description
The faxrunq and faxrunqd in the mgetty package allows local users to create or modify arbitrary files via a symlink attack which creates a symlink in from /var/spool/fax/outgoing/.last_run to the target file.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Gert Doering mgetty 1.1.19/1.1.20/1.1.21/1.22.8 - Symbolic Link Traversal EDB-20179 · local · Aug 25, 2000 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 1612 vdb-entry
- http://archives.neohapsis.com/archives/bugtraq/2000-08/0330.html
- 20000826 Advisory: mgetty local compromise mailing-list
- CSSA-2000-029.0 vendor-advisory