Cisco Pix and ASA TTL denial of service
| pix-asa-ttl-dos (39862) |  Low Risk |
Description:
Cisco PIX and ASA are vulnerable to a denial of service, caused by an error when the Time-to-Live (TTL) decrement feature is enabled. By sending a specially-crafted IP packet, a remote attacker could exploit this vulnerability to reload the device.
Platforms Affected:
- Cisco, 5500 Series Adaptive Security Appliance 7.2-2
- Cisco, 5500 Series Adaptive Security Appliance 8.0-2
- Cisco, PIX 500 7.2.2
- Cisco, PIX 500 8.0.2
Remedy:
Refer to cisco-sa-20080123-asa for patch, upgrade, or suggested workaround information. See References.
Consequences:
Denial of Service
References:
- cisco-sa-20080123-asa, Cisco Security Advisory: Cisco PIX and ASA Time-to-Live Vulnerability at http://www.cisco.com/en/US/products/products_security_advisory09186a008093942e.shtml.
- BID-27418: Cisco PIX and ASA Appliance 'TTL Decrement' Denial of Service Vulnerability
- CVE-2008-0028: Unspecified vulnerability in Cisco PIX 500 Series Security Appliance and 5500 Series Adaptive Security Appliance (ASA) before 7.2(3)6 and 8.0(3), when the Time-to-Live (TTL) decrement feature is enabled, allows remote attackers to cause a denial of service (device reload) via a crafted IP packet.
- SA28625: Cisco PIX and ASA Time-To-Live Denial of Service Vulnerability
- SECTRACK ID: 1019262: Cisco ASA TTL Decrement Feature Lets Remote Users Deny Service
- SECTRACK ID: 1019263: Cisco PIX Firewall TTL Decrement Feature Lets Remote Users Deny Service
- VUPEN/ADV-2008-0259: Cisco PIX and ASA Time-to-Live Remote Denial of Service Vulnerability
Reported:
Jan 23, 2008
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net