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TITLE:
FilZip Multiple Archive Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA20543

VERIFY ADVISORY:
http://secunia.com/advisories/20543/

CRITICAL:
Less critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Filzip 3.x
http://secunia.com/product/8229/

DESCRIPTION:
Claus Berghamer has discovered a vulnerability in FilZip, which
potentially can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to an input validation error when
extracting files compressed with RAR (.rar), TAR (.tar), JAR (.jar),
or GZ (.gz). This makes it possible to have files extracted to
arbitrary locations outside the specified directory using the "..\"
directory traversal sequence.

The vulnerability has been confirmed in version 3.05. Other versions
may also be affected.

SOLUTION:
Do not extract untrusted archive files.

To reduce the risk, never extract files as an administrative user.

PROVIDED AND/OR DISCOVERED BY:
Claus Berghamer

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About:
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