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Vulnerability Alert

Cisco IOS Software ScanSafe Vulnerability

 
Threat Type:CWE-399: Resource Management Errors
IntelliShield ID:34234
Version:1
First Published:2014 May 14 20:09 GMT
Last Published:2014 May 14 20:09 GMT
Port: Not available
CVE:CVE-2014-3263
BugTraq ID:67397
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:5.4 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.5
Related Resources:
View related Security Notice
 
 
Version Summary:Cisco IOS Software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are available.
 
 
Description
A vulnerability in the content scanning module of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a reload of the affected device.

The vulnerability occurs when processing HTTPS packets that need to be redirected to a ScanSafe tower. An attacker could exploit this vulnerability by sending HTTPS packets to be redirected to a ScanSafe tower. An exploit could allow the attacker to cause a reload of the affected device.

Cisco has confirmed the vulnerability in a security notice and released software updates.
 
Warning Indicators
At the time this alert was first published, Cisco IOS Software Release 15.3(3)M is vulnerable. Later releases may also be vulnerable.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker may need access to trusted, internal networks in which the targeted device may reside to send HTTPS packets to a targeted device. This access requirement may reduce the likelihood of a successful exploit.
 
Vendor Announcements
Cisco has released a security notice at the following link: CVE-2014-3263

Customers are advised to consult Cisco bug ID CSCum97038 for a complete list of affected product versions.
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to cause an affected device to reload, resulting in a denial of service (DoS) condition.
 
Technical Information
The vulnerability is due to improper processing of HTTPS packets that need to be redirected to a ScanSafe tower.

An unauthenticated, remote attacker could exploit this vulnerability by sending HTTPS packets to be redirected to a ScanSafe tower. An exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
 
Safeguards
Administrators are advised to apply the appropriate updates.

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

Administrators can help protect affected systems from external attacks by using a solid firewall strategy.

Administrators are advised to monitor affected systems.
 
Patches/Software
Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com for assistance.
 
Alert History
 
Initial Release


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

Primary Products:
CiscoIOS 15.3M 15.3(3)M

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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