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 ---------------------------------------------------------------------- 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: http://secunia.com/secunia_security_advisories/ 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. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet@packetstormsecurity.org ----------------------------------------------------------------------