Products & Services
Support

Product Categories


Popular Downloads


Manage Software

How to Buy

For Home

Linksys Products Store
Linksys is now part of Belkin
Products for everyone

All Ordering Options

Training & Events Partners
Guest

Vulnerability Alert

D-Link Routers User-Agent String Authentication Bypass Vulnerability

 
Threat Type:CWE-287: Authentication Issues
IntelliShield ID:31348
Version:1
First Published:2013 October 18 16:15 GMT
Last Published:2013 October 18 16:15 GMT
Port: Not available
Urgency:Unlikely Use
Credibility:Highly Credible
Severity:Mild Damage
CVSS Base:9.4 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:8.0
 
Version Summary:D-Link routers contain a vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access. Updates are not available.
 
 
Description
A vulnerability in D-Link routers could allow an unauthenticated, remote attacker to gain unauthorized access.

The vulnerability is due to insufficient security restrictions that are imposed by the web console of the affected software. An attacker could exploit the vulnerability by crafting HTTP requests that contain user-agent strings. The processing of these requests could allow the attacker to bypass security restrictions and gain unauthorized access to the web interface of the router.

D-Link has confirmed the vulnerability. Software updates are not available.
 
Warning Indicators
The following D-Link routers are vulnerable:
  • DIR-100
  • DIR-120
  • DI-624S
  • DI-524UP
  • DI-604S
  • DI-604UP
  • DI-604+
 
IntelliShield Analysis
The attacker would likely need access to trusted networks to exploit the vulnerability. This access restriction limits the likelihood of a successful exploit.
 
Vendor Announcements
D-link has released an update notification: Update on Router Security.
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to bypass security restrictions and gain unauthorized access to the targeted device. The attacker could leverage the access to launch further attacks.
 
Technical Information
Technical information is not available.
 
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 monitor affected systems.
 
Patches/Software
Updates are not available.
 
Alert History
 
Initial Release


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

Primary Products:
D-Link Systems, Inc.DI 604S Base | 604UP Base | 604+ Base | 524UP Base | 624S Base
D-Link Systems, Inc.DIR-100 Router Firmware 1.02 Base | 1.12 Base

Associated Products:
N/A




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.


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.
Powered by  IntelliShield