Description
Cisco PIX/ASA 7.1.x before 7.1(2) and 7.0.x before 7.0(5), PIX 6.3.x before 6.3.5(112), and FWSM 2.3.x before 2.3(4) and 3.x before 3.1(7), when used with Websense/N2H2, allows remote attackers to bypass HTTP access restrictions by splitting the GET method of an HTTP request into multiple packets, which prevents the request from being sent to Websense for inspection, aka bugs CSCsc67612, CSCsc68472, and CSCsd81734.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Cisco - WebSense Content Filtering Bypass EDB-27830 · remote · May 8, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20060508 VSR Advisory: WebSense content filter bypass when deployed in conjunction with Cisco filtering devices mailing-list
- 25453 vdb-entry
- http://www.vsecurity.com/bulletins/advisories/2006/cisco-websense-bypass.txt
- 20044 third-party-advisory
- 17883 vdb-entry
- ADV-2006-1738 vdb-entry
- 20060508 PIX/ASA/FWSM Websense/N2H2 Content Filter Bypass vendor-advisory
- 1016040 vdb-entry
- 1016039 vdb-entry
- 20060508 VSR Advisory: WebSense content filter bypass when deployed in conjunction with Cisco filtering devices mailing-list
- cisco-websense-content-filtering-bypass(26308) vdb-entry