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>> ZXID OpenSSL "DSA_verify()" Signature Spoofing Vulnerability
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Title : ZXID OpenSSL "DSA_verify()" Signature Spoofing Vulnerability
VUPEN ID : VUPEN/ADV-2009-0049
CVE ID : CVE-2009-0051
CWE ID : CWE-347
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2009-01-08
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A vulnerability has been identified in ZXID, which could be exploited by attackers to bypass security restrictions. This issue is caused due to various functions not properly checking the result of the OpenSSL "DSA_verify()" function when validating signatures, which could cause a malformed signature to be treated as valid, leading to spoofing attacks.
Affected Products
ZXID version 0.29 and prior
Solution
VUPEN Security is not aware of any vendor-supplied patch.
References
http://www.vupen.com/english/advisories/2009/0049
http://www.ocert.org/advisories/ocert-2008-016.html
Credits
Vulnerability reported by Google Security Team.
ChangeLog
2009-01-08 : Initial release
Vulnerability Management
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