Description
psyBNC 2.3 allows remote attackers to cause a denial of service (CPU consumption and resource exhaustion) by sending a PASS command with a long password argument and quickly killing the connection, which is not properly terminated by psyBNC.
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 2
- psyBNC 2.3 - Denial of Service EDB-383 · dos · May 19, 2002 · verified
- psyBNC 2.3 - Oversized Passwords Denial of Service EDB-21409 · dos · Apr 22, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 4570 vdb-entry
- psybnc-long-password-dos(8912) vdb-entry
- 20020422 Re: psyBNC 2.3 DoS / Bug mailing-list
- 20020423 PsyBNC Remote Dos POC mailing-list