TITLE:
Network Everywhere Cable/DSL 4-Port Router NR041 DHCP Script
Insertion

SECUNIA ADVISORY ID:
SA12393

VERIFY ADVISORY:
http://secunia.com/advisories/12393/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From local network

OPERATING SYSTEM:
Network Everywhere Cable/DSL 4-Port Router NR041
http://secunia.com/product/3844/

DESCRIPTION:
Mathieu Lacroix has reported a vulnerability in Network Everywhere
Cable/DSL 4-Port Router NR041, allowing malicious people to conduct
script insertion attacks.

The DHCP daemon does not sanitise input passed with the "DHCP
HOSTNAME" option in DHCP packets. This can be exploited to execute
arbitrary HTML and script code in an administrative user's browser
session when a malicious entry is viewed via the web-based
administrative interface.

The vulnerability has been reported in version 1.2 Release 03. Other
versions may also be affected.

SOLUTION:
Disable the DHCP service or don't view DHCP logs in the
administrative interface.

PROVIDED AND/OR DISCOVERED BY:
Mathieu Lacroix

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