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‫ Backdoor found in D-Link router firmware code

ID: IRCNE2013101979
Date: 2013-10-14
 
According to “TechWorld”, a backdoor found in firmware used in several D-Link routers could allow an attacker to change a device's settings, a serious security problem that could be used for surveillance.
Craig Heffner, a vulnerability researcher with Tactical Network Solutions who specializes in wireless and embedded systems, found the vulnerability. Heffner wrote on his blog that the web interface for some D-Link routers could be accessed if a browser's user agent string is set to "xmlset_roodkcableoj28840ybtide."
ith access to a router's settings, an attacker could potentially steer someone's Internet traffic through another their own server and read their unencrypted data traffic.
To find other vulnerable D-Link router models, Heffner used a special search engine called Shodan, which is designed to find any device connected to the Internet, ranging from refrigerators to CCTV cameras to routers.
The affected models likely include D-Link's DIR-100, DI-524, DI-524UP, DI-604S, DI-604UP, DI-604+, TM-G5240 and possibly the DIR-615. The same firmware is also used in the BRL-04UR and BRL-04CW routers made by Planex, Heffner wrote.
A web search turned up the suspicious user agent string in a post on a Russian forum three years ago, Heffner wrote, which means somebody has known about it for a while.

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