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LibTomCrypt ECC Signature Scheme Vulnerability
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Secunia Advisory:
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SA15233
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Release Date:
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2005-05-04
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Last Update:
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2005-05-19
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Popularity:
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5,456 views
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Critical:
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Moderately 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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Vendor Patch
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| Software: | LibTomCrypt 1.x
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| | CVE reference: | CVE-2005-1600
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Description:
A vulnerability has been reported in LibTomCrypt, which can be exploited by malicious people to create valid signatures without the private key.
The vulnerability is caused due to a mathematical error in the implementation of the El Gamal signature algorithm. This can be exploited to create valid signatures and sign arbitrary messages without the private key via an application using the ECC (Elliptic Curve Cryptosystem) signature scheme routines.
The vulnerability has been reported in version 1.02. Prior versions may also be affected.
Solution:
The vulnerability has been fixed in the CVS repository.
Provided and/or discovered by:
Reported by vendor.
Changelog:
2005-05-09: Updated advisory.
2005-05-19: Added CVE reference.
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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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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10th Oct, 2008
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