Description
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.
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 5
- Kerio MailServer 5.6.3 - Remote Buffer Overflow EDB-46 · remote · Jun 27, 2003 · verified
- Kerio MailServer 5.6.3 subscribe Module - Overflow EDB-22800 · dos · Jun 18, 2003 · verified
- Kerio MailServer 5.6.3 add_acl Module - Overflow EDB-22801 · dos · Jun 18, 2003 · verified
- Kerio MailServer 5.6.3 list Module - Overflow EDB-22802 · dos · Jun 18, 2003 · verified
- Kerio MailServer 5.6.3 do_map Module - Overflow EDB-22803 · dos · Jun 18, 2003 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.