Description
Squid 2.4 STABLE3 and earlier allows remote attackers to cause a denial of service (core dump) and possibly execute arbitrary code with an ftp:// URL with a larger number of special characters, which exceed the buffer when Squid URL-escapes the characters.
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
- Squid 2.0-4 - Cache FTP Proxy URL Buffer Overflow EDB-21297 · remote · Feb 21, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://www.squid-cache.org/Versions/v2/2.4/bugs/
- CLA-2002:464 vendor-advisory
- SuSE-SA:2002:008 vendor-advisory
- MDKSA-2002:016 vendor-advisory
- 20020222 Squid buffer overflow mailing-list
- 20020222 TSLSA-2002-0031 - squid mailing-list
- CSSA-2002-SCO.7 vendor-advisory
- 20020221 Squid HTTP Proxy Security Update Advisory 2002:1 mailing-list
- RHSA-2002:029 vendor-advisory
- CSSA-2002-010.0 vendor-advisory
- 5378 vdb-entry
- squid-ftpbuildtitleurl-bo(8258) vdb-entry
- 4148 vdb-entry