---------------------------------------------------------------------- Want to work within IT-Security? Secunia is expanding its team of highly skilled security experts. We will help with relocation and obtaining a work permit. Currently the following type of positions are available: http://secunia.com/quality_assurance_analyst/ http://secunia.com/web_application_security_specialist/ http://secunia.com/hardcore_disassembler_and_reverse_engineer/ ---------------------------------------------------------------------- TITLE: Cisco Intrusion Prevention System Fragmented IP Packets Security Bypass SECUNIA ADVISORY ID: SA22022 VERIFY ADVISORY: http://secunia.com/advisories/22022/ CRITICAL: Moderately critical IMPACT: Security Bypass WHERE: >From remote OPERATING SYSTEM: Cisco Intrusion Prevention System (IPS) 5.x http://secunia.com/product/5600/ DESCRIPTION: A vulnerability has been reported in Cisco Intrusion Prevention System, which can be exploited by malicious people to bypass certain security restrictions. The vulnerability is caused due to insufficient inspection of fragmented IP packets. This can be exploited to bypass the Intrusion Prevention System to e.g. access internal systems by sending specially crafted IP packets. The vulnerability affects the following products: - Cisco IPS 5.0(x) software prior to 5.0(6p2) - Cisco IPS 5.1(x) software prior to 5.1(2) SOLUTION: Apply updated software. Cisco IPS 5.0(6p1) and earlier: Cisco IPS 5.0(6p2) Cisco IPS 5.1(1) and earlier: Cisco IPS 5.1(2) PROVIDED AND/OR DISCOVERED BY: Reported by the vendor. ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20060920-ips.shtml OTHER REFERENCES: US-CERT VU#658884: http://www.kb.cert.org/vuls/id/658884 ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------