CVE-2016-6367: Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution Vulnerability

CVE-2016-6367 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-05-24

A vulnerability in the command-line interface (CLI) parser of Cisco ASA software allows an authenticated, local attacker to gain elevated privileges or execute arbitrary code via invalid CLI commands. The flaw, also known as EPICBANANA, stems from improper neutralization of special elements within the CLI parser.

Technologies: Cisco Adaptive Security Appliance (ASA), Cisco Firepower Threat Defense (FTD). Vendors: Cisco.

Quick answers

Is CVE-2016-6367 exploited in the wild?
Yes. CVE-2016-6367 is known to be exploited in the wild, first recorded on 24 May 2022. Treat it as urgent.
How severe is CVE-2016-6367?
Critical severity, with a CVSS score of 7.8, published 24 May 2022.
Which products and versions are affected?
Cisco Adaptive Security Appliance (ASA) Software Before 8.4(1); Cisco PIX; Cisco FWSM.
Is there a fix for CVE-2016-6367?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2016-6367 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2016-6367?
Check whether you run Cisco Adaptive Security Appliance (ASA) or Cisco Firepower Threat Defense (FTD). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Cisco Adaptive Security Appliance (ASA) Software Before 8.4(1)
  • Cisco PIX
  • Cisco FWSM

Timeline

  • 2016-08-17: disclosed: Initial Cisco security advisory published
  • 2022-05-24: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-05-24: exploited: Confirmed as exploited in the wild by CISA

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