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 18.104.22.168_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.
Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the
Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service.
This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.