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Cyrus SASL Library Buffer Overflow and "SASL_PATH" Privilege Escalation
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Secunia Advisory:
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SA12760
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Release Date:
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2004-10-08
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Last Update:
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2005-03-04
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Popularity:
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9,309 views
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Critical:
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Highly critical
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Impact:
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Privilege escalation
System access
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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: | Cyrus SASL Library 1.x
Cyrus SASL Library 2.x
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| CVE reference: | CVE-2004-0884
CVE-2005-0373
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Description:
Two vulnerabilities have been reported in Cyrus SASL library, which can be exploited by malicious people to compromise a vulnerable system and by malicious, local users to gain escalated privileges.
1) A boundary error in "digestmda5.c" can be exploited to cause a buffer overflow and may allow execution of arbitrary code with the privileges of the application using the Cyrus SASL library.
2) An input validation error, where the Cyrus SASL library insecurely loads plugins using the SASL_PATH environment variable, can be exploited to load an arbitrary plugin with the privileges of the application linked to the Cyrus SASL library.
Solution:
1) Update to version 2.1.19.
http://asg.web.cmu.edu/cyrus/download/
2) A fix is available in the CVS repository.
Provided and/or discovered by:
Reported by vendor.
Changelog:
2005-03-04: Added CVE reference.
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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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