From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu Jan 25 2007 - 08:47:05 CST

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TITLE:
ATCOM AT-320ED IP Phone Session Management Vulnerability

SECUNIA ADVISORY ID:
SA23919

VERIFY ADVISORY:
http://secunia.com/advisories/23919/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
From remote

OPERATING SYSTEM:
ATCOM AT-320ED IP Phone 1.x
http://secunia.com/product/13353/

DESCRIPTION:
Adrian Pastor has reported a vulnerability in ATCOM AT-320ED IP
Phone, which can be exploited by malicious people to bypass certain
security restrictions.

The vulnerability is caused due to an error within the session
management. If a superuser logs into the web management console, the
webserver accepts any request as long as the superuser's session is
valid. This can be exploited to bypass the authentication process and
e.g. allows the modification of certain settings.

The vulnerability is reported in firmware version 1.42 and 1.54.
Other versions may also be affected.

SOLUTION:
Only log into the web management console from trusted network
environments. Use a firewall to restrict access to the phone.

PROVIDED AND/OR DISCOVERED BY:
Adrian Pastor

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/3189

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