Cisco Intrusion Prevention System Bugs Let Remote Users Deny Service
SecurityTracker Alert ID: 1029787|
SecurityTracker URL: http://securitytracker.com/id/1029787
(Links to External Site)
Date: Feb 20 2014
Denial of service via network|
Fix Available: Yes Vendor Confirmed: Yes |
Version(s): 6.x, 7.0, 7.1, 7.2|
Three vulnerabilities were reported in Cisco Intrusion Prevention System (IPS). A remote user can cause denial of service conditions.|
A remote user can send specially crafted fragmented packets through the target system to cause the target Analysis Engine to become unresponsive [CVE-2014-0718]. Systems with the produce-verbose-alert action enabled are affected.
The vendor has assigned bug ID CSCui91266 to this vulnerability.
A remote user can send specially crafted TCP packets to TCP port 7000 of the management IP interface to cause the Control-Plane MainApp to become unresponsive [CVE-2014-0719]. This may cause critical functions to fail. Only Cisco IPS on Cisco ASA 5500 Series and Cisco ASA 5500-X Series devices is affected.
The vendor has assigned bug ID CSCui67394 to this vulnerability.
A remote user can send specially crafted jumbo frames at a high rate through the target device to cause the Analysis Engine process to become unresponsive [CVE-2014-0720].
The vendor has assigned bug ID CSCuh94944 to this vulnerability.
A remote user can cause the target system to become unresponsive.|
The vendor has issued a fix (7.1(8p2)E4, 7.2(2)E4).|
The vendor's advisory is available at:
Vendor URL: tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140219-ips (Links to External Site)
Input validation error, State error|
Source Message Contents
Subject: Cisco Security Advisory: Multiple Vulnerabilities in Cisco IPS Software|
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Cisco Security Advisory: Multiple Vulnerabilities in Cisco IPS Software
Advisory ID: cisco-sa-20140219-ips
For Public Release 2014 February 19 16:00 UTC (GMT)
Cisco Intrusion Prevention System (IPS) Software is affected by the following vulnerabilities:
Cisco IPS Analysis Engine Denial of Service Vulnerability
Cisco IPS Control-Plane MainApp Denial of Service Vulnerability
Cisco IPS Jumbo Frame Denial of Service Vulnerability
The Cisco IPS Analysis Engine Denial of Service Vulnerability and the Cisco IPS Jumbo Frame Denial of Service Vulnerability could allow an unauthenticated, remote attacker to cause the Analysis Engine process to become unresponsive or crash. When this occurs, the Cisco IPS will stop inspecting traffic.
The Cisco IPS Control-Plane MainApp Denial of Service Vulnerability could allow an unauthenticated, remote attacker to cause the MainApp process to become unresponsive and prevent it from executing several tasks including alert notification, event store management, and sensor authentication. The Cisco IPS web server will also be unavailable while the MainApp process is unresponsive, and other processes such as the Analysis Engine process may not work properly.
Cisco has released free software updates that address these vulnerabilities. Workarounds that mitigate some of the vulnerabilities are available. This advisory is available at the following link:
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