TITLE:
ELOG Long Parameter Value Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA18124

VERIFY ADVISORY:
http://secunia.com/advisories/18124/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
ELOG 2.x
http://secunia.com/product/4657/

DESCRIPTION:
sk has discovered a vulnerability in ELOG, which can be exploited by
malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error in "elogd" when handling
an overly long value sent to the "cmd" and "mode" parameters. This
can be exploited to crash the service.

Example:
http://[host]/[logbook]/?cmd=[long value]

The vulnerability has been confirmed in version 2.6.0 compiled from
source on Fedora Core 4 with the default settings.

SOLUTION:
Filter potentially malicious requests using a HTTP proxy.

PROVIDED AND/OR DISCOVERED BY:
sk, GroundZero Security Research and Software Development.

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