CVE-2016-6367KEV · OVERDUE

Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution Vulnerability

High · published August 18, 2016

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 7.8. It is confirmed in active exploitation. It sits in the 97.7th percentile for exploit probability.

1591
days past CISA
deadline
CVSS v3.1
7.8
EPSS
23%
Percentile
97.7
In the wild
Confirmed
What it is

⚡ A single invalid command could let local users elevate their privileges on Cisco ASA devices, like a guest at a hotel who finds an unlocked back door to the VIP lounge! Picture a hotel where anyone can stroll into the staff-only area just by saying the right password. That’s what happens here, as malicious users can exploit this bug to gain unauthorized access and control over the system, just like a cheeky guest who sneaks into the penthouse suite! With the wrong command, an attacker could potentially gain full access to critical network resources, change settings, or even cripple the entire security functionality. This exploit is a gateway for unauthorized control that could lead to catastrophic security breaches!

Put simply

Picture a hotel where anyone can stroll into the staff-only area just by saying the right password. That’s what happens here, as malicious users can exploit this bug to gain unauthorized access and control over the system, just like a cheeky guest who sneaks into the penthouse suite! This vulnerability (CVE-2016-6367) allows local users to execute invalid command-line interface (CLI) inputs that the system mistakenly trusts, leading to privilege escalation.

What to do

With the wrong command, an attacker could potentially gain full access to critical network resources, change settings, or even cripple the entire security functionality. This exploit is a gateway for unauthorized control that could lead to catastrophic security breaches! Upgrade affected Cisco ASA devices to version 8.4(1) or later as soon as possible. Regularly audit user permissions and command inputs to ensure compliance and avoid abuse. Don't let those back doors stay open! You've got this! By acting quickly, you can lock down your systems and keep your network safe from unwelcome guests! 🛡️

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.22583 · 97.7th percentile
Published
2016-08-18T18:00Z
KEV added
2022-05-24 · due 2022-06-14
EPSS history
Timeline
  • 24 MAY 00:00Z
    Added to CISA KEV — remediate by Jun 14
    kev
  • 18 AUG 18:00Z
    Cisco Adaptive Security Appliance (ASA) Software before 8.4(1) on ASA 5500, ASA 5500-X, PIX, and FWSM devices allows local users to gain privileges via invalid…
    cvelistv5