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TITLE:
A-LINK WL54AP3 / WL54AP2 Cross-Site Scripting and Cross-Site Request
Forgery

SECUNIA ADVISORY ID:
SA32421

VERIFY ADVISORY:
http://secunia.com/advisories/32421/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

OPERATING SYSTEM:
A-LINK WL54AP2 1.x
http://secunia.com/advisories/product/20309/
A-LINK WL54AP3 1.x
http://secunia.com/advisories/product/20310/

DESCRIPTION:
Some vulnerabilities have been reported in A-LINK WL54AP3 and
WL54AP2, which can be exploited by malicious people to conduct
cross-site scripting or cross-site request forgery attacks.

1) Input passed via the domain name in the management interface is
not properly sanitised before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in the user's
browser session in context of the web interface.

2) The web interface allows users to perform certain actions via HTTP
requests without performing any validity checks to verify the request.
This can be exploited to e.g. change the administrative user's
username and password, or DNS settings by enticing a logged-in user
to visit a malicious site.

SOLUTION:
Update to version 1.4.2.
ftp://ftp.a-link.com/wl54ap3/v142-eng1.zip

PROVIDED AND/OR DISCOVERED BY:
Jussi Vuokko and Henri Lindberg, Louhi Networks Information Security
Research

ORIGINAL ADVISORY:
A-LINK:
http://www.a-link.com/WL54AP3.html

Louhi Networks:
http://www.louhinetworks.fi/advisory/alink_081028.txt

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