CVE-2022-20862: cisco cisco unified communications manager Relative Path Traversal

Vulnerability summary

CVE-2022-20862 is a medium (CVSS 4.3) Relative Path Traversal vulnerability in cisco cisco unified communications manager. EPSS estimates a 1.45% chance of exploitation in the next 30 days, higher than 73% of scored vulnerabilities.

Timeline

1. 06-07-2022
   PublishedVulnerability first disclosed.
2. 06-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an affected system. A successful exploit could allow the attacker to access sensitive files on the operating system.

• 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.
• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.