Description
Format string vulnerability in qwik-smtpd.c in QwikMail SMTP (qwik-smtpd) 0.3 and earlier allows remote attackers to execute arbitrary code via format specifiers in the (1) clientRcptTo array, and the (2) Received and (3) messageID variables, possibly involving HELO and hostname arguments.
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
- Qwik SMTP 0.3 - Format String EDB-620 · remote · Nov 9, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 11572 vdb-entry
- 1012016 vdb-entry
- http://unl0ck.info/advisories/qwik-smtpd.txt
- 13037 third-party-advisory
- qwik-smtpd-format-string(17917) vdb-entry
- ADV-2007-0687 vdb-entry
- http://qwikmail.sourceforge.net/smtpd/qwik-smtpd-0.3.patch
- 20070218 qwik-smtpd format string mailing-list