CVE-2016-6366
Cisco Adaptive Security Appliance (ASA): SNMP Buffer Overflow
As of , CVE-2016-6366 in Cisco Adaptive Security Appliance (ASA) is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 24 May 2022
- US federal deadline
- 14 June 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.88Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.92 on 24 May 2022EPSS on the day CISA listed it.
- Public exploit
- 1 Metasploit module and 1 Exploit-DB entry
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
A buffer overflow vulnerability in the Simple Network Management Protocol (SNMP) code of Cisco ASA software could allow an attacker to cause a reload of the affected system or to remotely execute code.
CISA's 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.
The CVE record's description, from cisco
- CVE published
- 18 August 2016
- Assigned by
- cisco
- CVSS
- 8.8 High (CVSS 3.1, from CISA-ADP)
- CWE-120
- Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-119
- Improper Restriction of Operations within the Bounds of a Memory Buffer
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- Exploit-DB published an exploit (EDB-ID 40258).
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Public exploits
Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.
- Metasploit: Cisco ASA Authentication Bypass (EXTRABACON)auxiliary module, rank normal
- Exploit-DB: Cisco ASA 8.x - 'EXTRABACON' Authentication BypassEDB-ID 40258, 18 August 2016
Adaptive Security Appliance (ASA): other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2018-0296Denial-of-Service | Cisco Adaptive Security Appliance (ASA) | Patch this weekMetasploit module; EPSS 0.99 | 0.99 | ||
| CVE-2014-2120Cross-Site Scripting (XSS) | Cisco Adaptive Security Appliance (ASA) | Patch soon | 0.23 | ||
| CVE-2016-6367CLI Remote Code Execution | Cisco Adaptive Security Appliance (ASA) | Patch soon | 0.23 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org