20051122 Cisco PIX TCP Connection Preventionmailing list
http://lists.grok.org.uk/pipermail/full-disclosure/2005-November/038971.html CVE-2005-3774
Cisco PIX - Spoofed TCP SYN Packets Remote Denial of Service
Record summary
CVE-2005-3774 has a selected CVSS score of 5.0; EIP currently links 2 catalogued exploits.
Description
Cisco PIX 6.3 and 7.0 allows remote attackers to cause a denial of service (blocked new connections) via spoofed TCP packets that cause the PIX to create embryonic connections that that would not produce a valid connection with the end system, including (1) SYN packets with invalid checksums, which do not result in a RST; or, from an external interface, (2) one byte of "meaningless data," or (3) a TTL that is one less than needed to reach the internal destination.
Description source: CVE List
Exploitation context
Available material
- Catalogued exploits
- 2
Proofs of concept
2Catalogued exploits
ExploitDBCisco PIX - Spoofed TCP SYN Packets Remote Denial of ServiceExploitDB exploitby Janis VizulisNot analyzed1 file
ExploitDBCisco PIX - TCP SYN Packet Denial of ServiceExploitDB exploitby Janis VizulisNot analyzed1 file
References
Showing 12 of 1720051122 Cisco PIX TCP Connection Preventionmailing list
http://lists.grok.org.uk/pipermail/full-disclosure/2005-November/038983.html 17670Third-party advisory
http://secunia.com/advisories/17670 1015256vdb entry
http://securitytracker.com/id?1015256 cisco.comConfirmation
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_security_notice09186a0080624a37.html 20051128 Response to Cisco PIX TCP Connection PreventionVendor advisory
http://www.cisco.com/warp/public/707/cisco-response-20051122-pix.shtml VU#853540Third-party advisory
http://www.kb.cert.org/vuls/id/853540 24140vdb entry
http://www.osvdb.org/24140 20051122 Cisco PIX TCP Connection Preventionmailing list
http://www.securityfocus.com/archive/1/417458/30/0/threaded 20060307 Cisco PIX embryonic state machine 1b data DoSmailing list
http://www.securityfocus.com/archive/1/426989/100/0/threaded 20060307 Cisco PIX embryonic state machine TTL(n-1) DoSmailing list
http://www.securityfocus.com/archive/1/426991/100/0/threaded 20060307 RE: Cisco PIX embryonic state machine 1b data DoSmailing list
http://www.securityfocus.com/archive/1/427041/100/0/threaded