TITLE:
TYPO3 "thumbs.php" Full Path Disclosure Weakness

SECUNIA ADVISORY ID:
SA18546

VERIFY ADVISORY:
http://secunia.com/advisories/18546/

CRITICAL:
Not critical

IMPACT:
Exposure of system information

WHERE:
>From remote

SOFTWARE:
TYPO3 3.x
http://secunia.com/product/1190/

DESCRIPTION:
Rodrigo Marcos has discovered a weakness in TYPO3, which can be
exploited by malicious people to disclose system information.

The problem is that it is possible to disclose the full path to
"typo3/t3lib/thumbs.php" by accessing it directly.

It is also possible to disclose the full path to "tslib/showpic.php"
and "t3lib/stddb/tables.php". However, this requires that
"display_errors" is enabled.

The weakness has been confirmed in version 3.8.1 and has also been
reported in version 3.7.1. Other versions may also be affected.

SOLUTION:
Restrict direct access to the "typo3/t3lib/thumbs.php" script (e.g.
with a .htaccess file).

Production systems should not return error messages to clients.

PROVIDED AND/OR DISCOVERED BY:
Rodrigo Marcos

ORIGINAL ADVISORY:
http://www.irmplc.com/advisory015.htm

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