Path traversal in Cisco Expressway and TelePresence Video Communication Server (VCS) - CVE-2022-20754

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Main Vulnerability Database Vulnerabilities #VU60966

Path traversal in Cisco Expressway and TelePresence Video Communication Server (VCS) - CVE-2022-20754

Published: March 2, 2022


Vulnerability identifier: #VU60966
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-20754
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Expressway
TelePresence Video Communication Server (VCS)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote user to overwrite arbitrary files on the system.

The vulnerability exists due to input validation error when processing directory traversal sequences in the cluster database API. A remote authenticated user can send a specially crafted HTTP request and overwrite arbitrary files with root privileges.


Remediation

Install update from vendor's website.

External links