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ProZilla "ftpsearch" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA17021
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Release Date:
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2005-10-03
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Popularity:
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5,205 views
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Critical:
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Moderately critical
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Impact:
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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: | ProZilla 1.x
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| CVE reference: | CVE-2005-2961
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Description:
Tavis Ormandy has reported a vulnerability in ProZilla, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error in the handling of ftp search results in the "get_string_ahref()" function of "ftpsearch.c". This can be exploited to cause a stack-based buffer overflow and allows arbitrary code execution via a malicious server that returns a search result with a specially crafted string in the "HREF" attribute of the "<A>" tag.
Successful exploitation requires that ProZilla is used with the "-ftpsearch" option, and also requires that the attacker is able to poison the DNS cache.
The vulnerability has been reported in version 1.3.7.4. Prior versions may also be affected.
Solution:
The vulnerability has been fixed in the "libprozilla" CVS repository.
Provided and/or discovered by:
Tavis Ormandy
Original Advisory:
http://genesys.ro/pipermail/prozilla/2005-September/000790.html
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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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