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Vulnerability Alert

Cisco Small Business Router Password Disclosure Vulnerability

 
Threat Type:CWE-255: Credentials Management
IntelliShield ID:33019
Version:1
First Published:2014 March 05 16:28 GMT
Last Published:2014 March 05 16:28 GMT
Port: Not available
CVE:CVE-2014-0683
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Harassment
CVSS Base:10.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:8.3
 
Version Summary:Cisco Small Business routers contain a vulnerability that could allow an unauthenticated, remote attacker to gain administrative-level access to the web management interface of an affected device. Updates are available.
 
 
Description
A vulnerability in the web management interface of the Cisco RV110W Wireless-N VPN Firewall, the Cisco RV215W Wireless-N VPN Router, and the Cisco CVR100W Wireless-N VPN Router could allow an unauthenticated, remote attacker to gain administrative-level access to the web management interface of the affected device.

The vulnerability is due to improper handling of authentication requests by the web framework. An attacker could exploit this vulnerability by intercepting, modifying, and resubmitting an authentication request. Successful exploitation of this vulnerability would give an attacker administrative-level access to the web-based administration interface on the affected device.

Cisco has confirmed the vulnerability in a security advisory and released software updates.
 
Warning Indicators
The following Cisco Small Business routers are affected:
  • Cisco RV110W Wireless-N VPN Firewall running firmware versions 1.2.0.9 and prior
  • Cisco RV215W Wireless-N VPN Router running firmware versions 1.1.0.5 and prior
  • Cisco CVR100W Wireless-N VPN Router running firmware versions 1.0.1.19 and prior
 
IntelliShield Analysis
An attacker must perform additional attacks before exploiting this vulnerability, such as a spoofing attack to intercept an authentication request before modifying and resubmitting the request.

Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
 
Vendor Announcements
Cisco has released a security advisory for Cisco bug IDs CSCul94527, CSCum86264, and CSCum86275 at the following link: cisco-sa-20140305-rpd
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to gain full control of an affected device via the web management interface. A successful exploit could aid in conducting further attacks.
 
Technical Information
The vulnerability is due to improper handling of authentication requests by the web management interface on affected Cisco Small Business routers.

An unauthenticated, remote attacker could exploit this vulnerability by intercepting, modifying, and resubmitting an authentication request sent to the web management interface of a targeted device. Successful exploitation could give an attacker administrative-level access to the web-based administration interface on the affected device, which the attacker could use to take complete control of the device and conduct further attacks.
 
Safeguards
Administrators are advised to apply the appropriate updates.

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

Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

Administrators are advised to monitor affected systems.
 
Patches/Software
Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com.
 
Alert History
 
Initial Release


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

Primary Products:
CiscoCisco Small Business RV Series Router Firmware 1.0 0.2 | 1.1 .0.9 | 1.2 .0.2

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.
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