CVE-2022-20755: cisco cisco telepresence video communication server (vcs) expressway Relative Path Traversal

Vulnerability summary

CVE-2022-20755 is a critical (CVSS 9.0) Relative Path Traversal vulnerability in cisco cisco telepresence video communication server (vcs) expressway. EPSS estimates a 3.30% chance of exploitation in the next 30 days, higher than 88.3% of scored vulnerabilities.

Timeline

1. 06-04-2022
   PublishedVulnerability first disclosed.
2. 06-11-2024
   Last modifiedVulnerability information updated.

Description

Multiple vulnerabilities in the API and web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read/write privileges to the application to write files or execute arbitrary code on the underlying operating system of an affected device as the root user. For more information about these vulnerabilities, see the Details section of this advisory.

• CWE-23Relative Path TraversalThe product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.