TITLE:
GuppY "pg" Arbitrary File Overwrite Vulnerability

SECUNIA ADVISORY ID:
SA19222

VERIFY ADVISORY:
http://secunia.com/advisories/19222/

CRITICAL:
Moderately critical

IMPACT:
Manipulation of data

WHERE:
>From remote

SOFTWARE:
GuppY 4.x
http://secunia.com/product/5665/

DESCRIPTION:
trueend5 has reported a vulnerability in GuppY, which can be
exploited by malicious people to manipulate certain information.

Input passed to the "pg" parameter in "dwnld.php" isn't properly
sanitised before being used to write a counter value to ".dtb" files.
This can be exploited to overwrite arbitrary files via directory
traversal attacks.

Successful exploitation requires that "magic_quotes_gpc" is
disabled.

The vulnerability has been reported in version 4.5.11 and prior.

SOLUTION:
Update to version 4.5.12.
http://www.freeguppy.org/download.php?lng=en

PROVIDED AND/OR DISCOVERED BY:
trueend5, Computer Security Science Researchers Institute

ORIGINAL ADVISORY:
http://www.kapda.ir/advisory-291.html

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