CVE-2024-20399KEV · OVERDUECWE-78

Cisco NX-OS Software CLI Command Injection Vulnerability

Medium · published July 1, 2024

Patch now

The score understates this — it's already being exploited

CVSS calls it medium at 6.0. It is confirmed in active exploitation. It sits in the 91.1th percentile for exploit probability.

823
days past CISA
deadline
CVSS v3.1
6.0
EPSS
4%
Percentile
91.1
In the wild
Confirmed
What it is

⚠️ An authenticated user can exploit a command line oversight to execute arbitrary commands as root! This vulnerability in Cisco NX-OS Software might look innocent, but it's packing a punch! 💥 Think of this vulnerability like a restaurant where a chef lets patrons customize their meals without checking the menu—what starts as a special request could end up with someone ordering the entire kitchen! If exploited, an attacker with Administrator access could run any command they desire on the main operating system. This could lead to unauthorized data access or even control over critical network functions, turning an administrative privilege into a gateway for chaos!

Put simply

Think of this vulnerability like a restaurant where a chef lets patrons customize their meals without checking the menu—what starts as a special request could end up with someone ordering the entire kitchen! This vulnerability arises from insufficient validation of arguments entered into specific configuration CLI commands, allowing an attacker to craft malicious input that can be executed with root privileges.

What to do

If exploited, an attacker with Administrator access could run any command they desire on the main operating system. This could lead to unauthorized data access or even control over critical network functions, turning an administrative privilege into a gateway for chaos! Ensure you are running the latest version of Cisco NX-OS Software and review user access controls to limit Administrator credential distribution. Regularly audit command usage to catch any unusual activity. You've got this! Stay vigilant, patch up, and keep your network secure! 🛡️

The record
Technical detail
CVSS v3.1
6.0 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.04306 · 91.1th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2024-07-01T16:11Z
KEV added
2024-07-02 · due 2024-07-23
EPSS history
Timeline
  • 02 JUL 00:00Z
    Added to CISA KEV — remediate by Jul 23
    kev
  • 01 JUL 16:11Z
    Cisco NX-OS Software CLI Command Injection Vulnerability
    cvelistv5