Description
Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.
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.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
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Cisco ASA Authentication Bypass (EXTRABACON)
auxiliary/admin/networking/cisco_asa_extrabacon
Exploit-DB 1
- Cisco ASA 8.x - 'EXTRABACON' Authentication Bypass EDB-40258 · remote · Aug 18, 2016
GitHub 1 repository
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RiskSense-Ops/CVE-2016-6366 ★ 163 · Sep 20, 2016
Public repository for improvements to the EXTRABACON exploit
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 92521 vdb-entry
- https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40258.zip
- http://blogs.cisco.com/security/shadow-brokers
- 20160817 Cisco Adaptive Security Appliance SNMP Remote Code Execution Vulnerability vendor-advisory
- http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-56516
- https://zerosum0x0.blogspot.com/2016/09/reverse-engineering-cisco-asa-for.html
- 40258 exploit
- 1036637 vdb-entry