---------------------------------------------------------------------- "From 2007 to 2009 vulnerabilities in a typical end-user PC almost doubled from about 220 to 420." Non-Microsoft software to blame for increase in vulnerabilities affecting typical Windows end-users, read more: http://secunia.com/gfx/pdf/Secunia_Half_Year_Report_2010.pdf ---------------------------------------------------------------------- TITLE: Cisco ASA 5500 Series Multiple Denial of Service Vulnerabilities SECUNIA ADVISORY ID: SA40842 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/40842/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=40842 RELEASE DATE: 2010-08-05 DISCUSS ADVISORY: http://secunia.com/advisories/40842/#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/40842/ 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=40842 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: Some vulnerabilities have been reported in Cisco ASA (Adaptive Security Appliance) 5500 Series, which can be exploited by malicious people to cause a DoS (Denial of Service). 1) Three errors exist in the SunRPC inspection engine while processing certain SunRPC messages. This can be exploited to reload a device via specially crafted UDP SunRPC packets that transit the appliance. 2) Three errors exist in the processing of certain TLS packets and can be exploited to reload the device by sending a series of specially crafted TLS packets. Successful exploitation of this vulnerability requires that the device is configured for SSL VPN, TLS Proxy for Encrypted Voice Inspection, or configured to accept ASDM management connections. 3) An error in the Session Initiation Protocol (SIP) inspection feature can be exploited to trigger an appliance reload via a specially crafted SIP packet that transits the appliance via TCP or UDP port 5060. 4) An error when parsing Internet Key Exchange (IKE) messages can be exploited to trigger an appliance reload via specially crafted packets sent to UDP ports 500 or 4500. Successful exploitation of this vulnerability requires that the device is configured for IPsec remote access or site-to-site VPNs SOLUTION: Update to a fixed version. Please see the vendor's advisory for detailed patch information. PROVIDED AND/OR DISCOVERED BY: Reported by the vendor. ORIGINAL ADVISORY: cisco-sa-20100804-asa: http://www.cisco.com/warp/public/707/cisco-sa-20100804-asa.shtml OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------