CVE-2024-20492

Summary

A vulnerability in the restricted shell of Cisco Expressway Series could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit this vulnerability, the attacker must have Administrator-level credentials with read-write privileges on an affected device.

This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a series of crafted CLI commands. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of the affected device. Note: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.11.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.6affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.11.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.2.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.8.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.11.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.1.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.9affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.6affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.7.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.6.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.11.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.5affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.9.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.10.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.8.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.5.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.9.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.11.4affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.4affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.8.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.2.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.5.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.6.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.1.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.8affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.10.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.10.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.7affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.10.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.7.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.8affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.7affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.5.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.9affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.10.4affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.7.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.5.5affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.6.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.6.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.6.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.6.4affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.7.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX12.7.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.4affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.5affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.6affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.7affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.8affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.2.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.9affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.2.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.2.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.11affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.2.5affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.0.10affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.2.6affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.2.7affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX15.0.0affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.4affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.5affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX15.0.1affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX15.0.2affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX15.0.3affected
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX14.3.6affected

Weaknesses

  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References