Apache HTTPd Range Header Denial of Service Vulnerability
14 Mar. 2012
Summary
Successful exploitation of this vulnerability could cause significant memory and CPU utilization on affected products. Repeated exploitation could result in a sustained DoS condition.
.Vulnerable Systems:
* Cisco MDS 9000 NX-OS Software releases prior to 5.x are affected. Cisco MDS 9000 NX-OS Software releases 5.x and later are not affected.
*Cisco SAN-OS 3.x.
*Cisco TelePresence Video Communication Server (Cisco TelePresence VCS)
*All Cisco CTS TelePresence Systems
*Cisco Video Surveillance Manager (VSM)
*Cisco Video Surveillance Operations Manager (VSOM)
*Management Center for Cisco Security Agent. Cisco Security Agent (client software) is not affected.
*Cisco Wireless Control System (WCS)
*Cisco Wide Area Application Services (WAAS) Software
*Cisco Quad
*Cisco Network Collector
*Cisco Mobility Services Engine
*CiscoWorks Common Services
*CiscoWorks LAN Management Solution
Immune Systems:
*Cisco ASA 5500 Series Adaptive Security Appliances
*Cisco Catalyst 6500 Series ASA Services Module
*Cisco Catalyst 6500 Series Firewall Services Module
*Cisco Fabric Manager
*Cisco Identity Services Engine
*Cisco Intercompany Media Engine
*Cisco IOS Software
*Cisco IOS XE Software
*Cisco IOS XR Software
*Cisco IP Interoperability and Collaboration System (IPICS)
*Cisco IPS Software
*Cisco Unified IP Phones
*Cisco MDS 9000 NX-OS Software releases 5.x or later (prior versions are affected)
*Cisco Nexus 7000 Series (further testing and verification showed that Cisco NX-OS on Nexus 7000 is not affected by this vulnerability)
*Cisco Nexus 4000 Series
*Cisco Nexus 3000 Series
*Cisco Nexus 5000 Series
*Cisco Nexus 1000v Series
*Cisco Prime Central
*Cisco Prime Optical
*Cisco Prime Performance Manager
*Cisco Secure Access Control System (ACS)
*Cisco TelePresence Server
*Cisco Unified Communications Manager (formerly Cisco CallManager)
*Cisco Unity
*Cisco Unity Connection
*Cisco Wireless LAN Controllers (WLC)
*Cisco Wireless Location Appliance
*CiscoWorks Wireless LAN Solution Engine (WLSE)
*Cisco Prime Network Control System (NCS)
*Cisco Detector XT DDoS Mitigation Appliance
*Cisco Guard XT DDoS Mitigation Appliance
*Cisco Tidal Enterprise Orchestrator
The Apache HTTPd server contains a denial of service vulnerability when it handles multiple overlapping ranges. Multiple Cisco products may be affected by this vulnerability.
Vendor Status:
Cisco has issued an update to correct this vulnerability
Disclosure Timeline:
2012-January-23 Updated the Software Versions and Fixes section.
2011-September-13 Updated the Products Confirmed Not Vulnerable section.
2011-September-08 Updated Vulnerable Products and Software Versions and Fixes sections.
2011-September-06 Updated Vulnerable Products and Software Versions and Fixes sections.
2011-September-02 Updated Vulnerable Products and Software Versions and Fixes sections. Added Cisco Network Collector to Vulnerable Products section.
2011-September-01 Added Cisco Quad to Vulnerable Products section and revised Software Versions and Fixes section.
2011-August-31 Updated Vulnerable Products, Products Confirmed Not Vulnerable, and Details sections with additional information about vulnerable and unaffected products.
2011-August-30 Initial public release.