TITLE:
PunkBuster WebTool Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA20257

VERIFY ADVISORY:
http://secunia.com/advisories/20257/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
PunkBuster 1.x
http://secunia.com/product/8131/

DESCRIPTION:
Luigi Auriemma has reported a vulnerability in PunkBuster, which can
be exploited by malicious people to cause a DoS (Denial of Service)
and potentially compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the web
administration interface (WebTool) within the handling of the
"webkey" parameter in the URL. This can be exploited to cause a
buffer overflow via a specially crafted HTTP request that contains an
overly long value in the "webkey" parameter.

Successful exploitation requires that WebTool has been enabled via
the "pb_sv_httpPort" setting.

The vulnerability has been reported in PunkBuster for server versions
prior to 1.229.

SOLUTION:
Update to version 1.229 or later.
http://www.evenbalance.com/

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/pbwebbof-adv.txt

Even Balance:
http://www.evenbalance.com/index.php?page=support-all.php

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