Netgear DGN2200B firmware contains a vulnerability that could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks on a targeted system. Updates are not available.
A vulnerability in Netgear DGN2200B firmware could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks on a targeted system.
The vulnerability is due to insufficient sanitization of user-supplied input by the affected software. An attacker could exploit this vulnerability by persuading a user to visit a malicious URL. When the URL is processed, it could allow the attacker to inject arbitrary script into the victim's web browser and execute it under the security context of the hosted website.
Proof-of-concept code that exploits this vulnerability is publicly available.
NetGear has not confirmed the vulnerability and software updates are not available.
Netgear DGN2200B firmware version 220.127.116.11_7.0.36 is vulnerable. Other versions could also be vulnerable.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
Vendor announcements are not available.
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary script code in the user's browser session under the security context of the hosted website. This could allow the attacker to access sensitive browser information such as
The vulnerability exists in the fw_serv_add.cgi script due to insufficient sanitization of user-supplied input.
Administrators are advised to contact the vendor for future updates and releases.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
Administrators are advised to implement an intrusion prevention system (IPS) or intrusion detection system (IDS) to help detect and prevent attacks that attempt to exploit this vulnerability.
The security vulnerability applies to the following combinations of products.
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