Secunia Security Advisory - Tavis Ormandy has reported a vulnerability in ProZilla, which can be exploited by malicious people to compromise a user's system.
d5eb8e5245baabec3d9325477eaf79100f31c9d313d9955e2e944ab8dfebf308
TITLE:
ProZilla "ftpsearch" Buffer Overflow Vulnerability
SECUNIA ADVISORY ID:
SA17021
VERIFY ADVISORY:
http://secunia.com/advisories/17021/
CRITICAL:
Moderately critical
IMPACT:
System access
WHERE:
>From remote
SOFTWARE:
ProZilla 1.x
http://secunia.com/product/4312/
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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