ID

VAR-201210-0127

CVE

CVE-2012-4643

TITLE

Cisco ASA 5500/Cisco Catalyst 6500 DHCP Denial of Service Vulnerability

DESCRIPTION

The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068. The Cisco Adaptive Security Appliance is an adaptive security appliance that provides modules for security and VPN services. Cisco Catalyst is an intelligent Ethernet switch developed by Cisco. An attacker can exploit this issue to cause a vulnerable device to reload, triggering a denial-of-service condition. This issue is tracked by Cisco Bug ID CSCtw84068. Cisco ASA is a set of firewall equipment of Cisco (Cisco). The device also includes IPS (Intrusion Prevention System), SSL VPN, IPSec VPN, antispam, and more. ---------------------------------------------------------------------- The final version of the CSI 6.0 has been released. Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/ ---------------------------------------------------------------------- TITLE: Cisco ASA Products Multiple Vulnerabilities SECUNIA ADVISORY ID: SA50871 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/50871/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=50871 RELEASE DATE: 2012-10-11 DISCUSS ADVISORY: http://secunia.com/advisories/50871/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/50871/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=50871 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: Multiple vulnerabilities have been reported in Cisco ASA 5500 Series Adaptive Security Appliances and Cisco Catalyst 6500 Series ASA Services Module (ASASM), which can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system. Successful exploitation requires the DHCP relay or DHCP server feature to be enabled. 2) An error in the AAA (Authentication, Authorization, and Accounting) code when handling SSL VPN authentication can be exploited to cause a device reload via a specially crafted authentication challenge-response. Successful exploitation requires Cisco ASA software configured for Clientless or AnyConnect SSL VPN. 3) An error within the SIP (Session Initiation Protocol) inspection engine can be exploited to cause a device reload via a specially crafted SIP media update packet. Successful exploitation requires that SIP inspection is enabled. 4) Some vulnerabilities exist in the DCERPC inspection engine. For more information: SA50857 SOLUTION: Update to version 7.2(5.8), 8.0(5.28), 8.1(2.56), 8.2(5.33), 8.3(2.34), 8.4(4.5), 8.5(1.14), or 8.6(1.5). Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ PROVIDED AND/OR DISCOVERED BY: Reported by the vendor. ORIGINAL ADVISORY: CSCtw84068, CSCtz04566, CSCtr63728, CSCtr21359, CSCtr21376, CSCtr21346: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/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 ----------------------------------------------------------------------

IOT TAXONOMY

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

resource management error

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Cisco

SOURCES

LAST UPDATE DATE

2024-11-23T22:08:40.217000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE