ID

VAR-200702-0343

CVE

CVE-2007-0963

TITLE

Cisco Firewall Services Module vulnerable to DoS via inspection of malformed SIP messages

DESCRIPTION

Unspecified vulnerability in Cisco Firewall Services Module (FWSM) 3.x before 3.1(3.3), when set to log at the "debug" level, allows remote attackers to cause a denial of service (device reboot) by sending packets that are not of a particular protocol such as TCP or UDP, which triggers the reboot during generation of Syslog message 710006. Cisco Firewall Services Module fails to properly inspect SIP messages. This vulnerability may allow a remote attacker to cause a denial of service condition. Multiple Cisco products are prone to multiple denial-of-service vulnerabilities. Attackers can exploit these issues to cause vulnerable devices to reload, potentially causing denial-of-service conditions. Multiple security vulnerabilities exist in Cisco PIX 500 Series Security Appliances and Cisco ASA 5500 Series Adaptive Security Appliances: Processing packets sent to FWSM could lead to reload +---------------- --------------------------------------- This vulnerability causes FWSM to generate 710006 syslog messages when attempting to overload occurs. The following two conditions must be met for this vulnerability to occur: * FWSM receives a message with a device IP address and the message is not the following protocol: TCP, UDP, ICMP, OSPF, Failover, PIM, IGMP, and ESP. Vulnerabilities are independent of the source of the packets. * Logging must be enabled at a high enough level to generate 710006 syslog messages, the default is debug level (level 7). Note that logging is disabled by default, and Cisco recommends logging at the debug level for debugging and error correction purposes only. This vulnerability is documented in Cisco Bug ID as CSCse85707. ---------------------------------------------------------------------- Secunia is proud to announce the availability of the Secunia Software Inspector. The Secunia Software Inspector is a free service that detects insecure versions of software that you may have installed in your system. When insecure versions are detected, the Secunia Software Inspector also provides thorough guidelines for updating the software to the latest secure version from the vendor. Try it out online: http://secunia.com/software_inspector/ ---------------------------------------------------------------------- TITLE: Cisco Firewall Services Module Multiple Vulnerabilities SECUNIA ADVISORY ID: SA24172 VERIFY ADVISORY: http://secunia.com/advisories/24172/ CRITICAL: Moderately critical IMPACT: Security Bypass, DoS WHERE: >From remote SOFTWARE: Cisco Firewall Services Module (FWSM) 3.x http://secunia.com/product/8614/ DESCRIPTION: Some vulnerabilities and a security issue have been reported in Cisco Firewall Services, which can be exploited by malicious people to cause a DoS or bypass certain security restrictions. 1) An unspecified error within the enhanced inspection of HTTP traffic can be exploited to cause the device to reload via specially crafted HTTP traffic. Successful exploitation requires that enhanced inspection is enabled. 2) An error within the inspection of SIP packets can be exploited to cause the device to reload via specially crafted SIP packets. Successful exploitation requires that SIP inspection is enabled. 3) An unspecified error when processing malformed HTTPS requests can be exploited to cause the device to reload by sending specially crafted HTTPS requests. Successful exploitation requires that "authentication for network access" (auth-proxy) is enabled. 4) An error when processing HTTP requests with a very long URL can be exploited to cause the device to reload, but requires that "authentication for network access" (auth-proxy) is enabled. 5) An unspecified error exists when processing HTTPS traffic that is directed to the FWSM. This can be exploited to cause the device to reload by sending specially crafted HTTPS requests, but requires that the HTTPS server is enabled. 6) An unspecified error when processing malformed SNMP requests from a trusted device can be exploited to cause the affected device to reload. Successful exploitation requires that the other, trusted device has explicit SNMP poll access. 7) A security issue when manipulating ACLs (Access Control Lists) that make use of object groups can corrupt ACLs, resulting in ACEs (Access Control Entries) being skipped or not evaluated in order, which can be exploited to bypass certain security restrictions. Note: Only an administrative user can change ACLs. Additionally, this does not affected devices which are reloaded after ACLs have been manipulated. A vulnerability that could cause the device to reload when "debugging" is enabled has also been reported. SOLUTION: Apply updated software. Please see vendor advisory for a patch matrix. PROVIDED AND/OR DISCOVERED BY: Reported by the vendor. ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20070214-fwsm.shtml ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

other

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Cisco Security bulletin

SOURCES

LAST UPDATE DATE

2024-11-23T21:49:12.809000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE