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Sybase Afaria RSA Signature Forgery Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA22934  
Release Date: 2006-11-17

Critical:
Less critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:Sybase Afaria 5.x

CVE reference:CVE-2006-4339 (Secunia mirror)

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Description:
Sybase has acknowledged a vulnerability in Afaria, which can be exploited by malicious people to bypass certain security restrictions.

The vulnerability is caused due to an error within the verification of certain signatures. If an RSA key with exponent 3 is used, it may be possible to forge a signature signed by that key.

Solution:
Do not use RSA keys with exponent 3.

Provided and/or discovered by:
Reported by the vendor.

Original Advisory:
http://www.sybase.com/detail?id=1047991

Other References:
SA21709:
http://secunia.com/advisories/21709/



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.


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