TITLE: wodSSHServer Key Exchange Algorithm String Buffer Overflow
SECUNIA ADVISORY ID: SA19845
VERIFY ADVISORY: http://secunia.com/advisories/19845/
CRITICAL: Highly critical
IMPACT: System access
WHERE: >From remote
SOFTWARE: wodSSHServer ActiveX Component 1.x http://secunia.com/product/9609/
DESCRIPTION: Gerry Eisenhaur has discovered a vulnerability in WeOnlyDo wodSSHServer, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the handling of the key exchange algorithm string sent by an SSH client. This can be exploited to cause a stack-based buffer overflow and may allow arbitrary code execution.
The vulnerability has been confirmed in versions 1.2.7 and 1.3.3 DEMO. Other versions may also be affected.
SOLUTION: Restrict access to trusted IP addresses only.
PROVIDED AND/OR DISCOVERED BY: Gerry Eisenhaur
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