Description
Buffer overflow in Van Dyke SecureCRT SSH client before 3.4.6, and 4.x before 4.0 beta 3, allows an SSH server to execute arbitrary code via a long SSH1 protocol version string.
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.
Metasploit 1 module
-
SecureCRT SSH1 Buffer Overflow
exploit/windows/ssh/securecrt_ssh1
Exploit-DB 3
- SecureCRT 4.0 Beta 2 SSH1 - Remote Buffer Overflow (Metasploit) EDB-16460 · remote · Apr 30, 2010 · verified
- SecureCRT 2.4/3.x/4.0 - SSH1 Identifier String Buffer Overflow (1) EDB-21634 · dos · Jul 23, 2002 · verified
- SecureCRT 2.4/3.x/4.0 - SSH1 Identifier String Buffer Overflow (2) EDB-21635 · remote · Jul 23, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20020723 Re: Arbitrary Code Execution Vulnerability in VanDyke SecureCRT mailing-list
- 20020723 Arbitrary Code Execution Vulnerability in VanDyke SecureCRT 3.4 & 4.0 beta mailing-list
- securecrt-ssh1-identifier-bo(9650) vdb-entry
- 4991 vdb-entry
- 5287 vdb-entry
- http://www.vandyke.com/products/securecrt/security07-25-02.html