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Sybase mFolio RSA Signature Forgery
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Secunia Advisory:
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SA22937
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Release Date:
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2006-11-17
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Last Update:
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2007-01-08
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Popularity:
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5,805 views
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Critical:
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Less critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Sybase mFolio 2.x
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| CVE reference: | CVE-2006-4339
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Description:
Sybase has acknowledged a vulnerability in mFolio, 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.
The vulnerability is reported in version 2.0 for Windows.
Solution:
Do not use RSA keys with exponent 3.
Upgrade to version 3.0.
http://www.sybase.com/content/1047991..._Verification_Vulnerabilty_Impact.pdf
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2007-01-08: Updated "Solution" section to include fixed version.
Original Advisory:
http://www.sybase.com/detail?id=1047991
Other References:
SA21709:
http://secunia.com/advisories/21709/
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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