Zero-day vulnerability in Cisco NX-OS

OS Command Injection
CVE-2024-20399

Not patched

Vulnerability details

Advisory: SB2024070156 - Privilege escalation in Cisco NX-OS Software

Vulnerable component: Cisco NX-OS

CVE-ID: CVE-2024-20399

CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Description:

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation. A local user can execute arbitrary commands as root on the underlying operating system of an affected device.

Note, the vulnerability is being actively exploited in the wild since of April 2024.

External links:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-cmd-inje...


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.