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Vulnerability Alert

Netgear DGN2200B pppoe_username Command Execution Vulnerability

 
Threat Type:CWE-16: Configuration
IntelliShield ID:29908
Version:1
First Published:2013 July 02 14:13 GMT
Last Published:2013 July 02 14:13 GMT
Port: Not available
Urgency:Unlikely Use
Credibility:Highly Credible
Severity:Mild Damage
CVSS Base:6.4 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.8
 
Version Summary:Netgear DGN2200B contains a vulnerability that could allow an unauthenticated, remote attacker to to execute arbitrary commands on a targeted system. Updates are not available.
 
 
Description
A vulnerability in Netgear DGN2200B could allow an unauthenticated, remote attacker to execute arbitrary shell commands.

The vulnerability is due to an authentication failure error within affected software. An exploit could allow the attacker to disclose authorized Point-to-Point Protocol over Ethernet (PPPoE) data from the device. The attacker may leverage this vulnerability to conduct additional attacks.

Proof-of-concept code that exploits this vulnerability is publicly available.

Netgear has not confirmed this vulnerability and updated software is not available.
 
Warning Indicators
Netgear DGN2200B firmware version 1.0.0.36_7.0.36 is vulnerable. Other versions could also be vulnerable.
 
IntelliShield Analysis
Successful exploitation could allow the attacker to upload and execute a backdoor to carry out additional attacks.
 
Vendor Announcements
Vendor announcements are not available.
 
Impact
An unauthenticated, remote attacker could exploit the vulnerability to execute arbitrary shell commands with the privileges of the user.
 
Technical Information
The vulnerability is due to insufficient input validation in the pppoe_username parameter while processing HTTP requests.

An unauthenticated, remote attacker could exploit this vulnerability by transmitting crafted requests to the affected device. Successful exploitation could allow the attacker to disclose unauthorized Point-to-Point Protocol over Ethernet (PPPoE). The attacker could use this information to launch additional attacks or to inject and execute arbitrary shell commands.
 
Safeguards
Administrators are advised to contact the vendor regarding future updates and releases.

Administrators are advised to allow only trusted users to have network access.

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.

Administrators are advised to monitor affected systems.
 
Patches/Software
Software updates are not available.
 
Alert History
 
Initial Release


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
NETGEARDGN2200B 1.0 .0.36

Associated Products:
N/A




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LEGAL DISCLAIMER
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.
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