Description
Buffer overflow in the POP3 server in 1st Class Mail Server 4.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an APOP USER command with a long second parameter (digest).
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
- 1st Class Internet Solutions 1st Class Mail Server 4.0 - Remote Buffer Overflow (PoC) EDB-23787 · dos · Mar 2, 2004 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 4129 vdb-entry
- 1009279 vdb-entry
- 1st-class-apop-dos(15314) vdb-entry
- http://www.digiti.be/jeffosz/advisories/1stclasspop3.txt
- 9794 vdb-entry
- 11029 third-party-advisory
- http://www.zone-h.org/advisories/read/id=4047