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TITLE:
WinGate WWW Proxy Server Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA20483

VERIFY ADVISORY:
http://secunia.com/advisories/20483/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From local network

SOFTWARE:
WinGate 6.x
http://secunia.com/product/3651/

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

The vulnerability is caused due to a boundary error within the WWW
Proxy Server. This can be exploited to cause a stack-based buffer
overflow via a specially-crafted HTTP request with an overly long
URL.

The vulnerability has been confirmed in version 6.1.2.1094, and also
reported in version 6.1.1.1077. Other versions may also be affected.

SOLUTION:
Restrict use of the product to within trusted networks.

PROVIDED AND/OR DISCOVERED BY:
kcope

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2006-June/046646.html

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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