CVE-2016-6366

CVE-2016-6366 is a high-severity (CVSS 8.8) vulnerability in Cisco Adaptive Security Appliance (ASA). CISA added it to the Known Exploited Vulnerabilities catalog on May 24, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 14, 2022. CISA does not currently list it as used in ransomware campaigns. Cisco has 102 vulnerabilities in the KEV catalog, 7 of them linked to ransomware.

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

• http://blogs.cisco.com/security/shadow-brokers
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160817-asa-snmp
• http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-56516
• http://www.securityfocus.com/bid/92521
• http://www.securitytracker.com/id/1036637
• https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/40258.zip
• https://www.exploit-db.com/exploits/40258/
• https://zerosum0x0.blogspot.com/2016/09/reverse-engineering-cisco-asa-for.html