CVE-2022-20789 MEDIUM

CVE-2022-20789: Cisco Unified Communications Products Arbitrary File Write Vulnerability

Vendor Cisco
Product Cisco Unified Communications Manager
Weakness CWE-73
Published April 21, 2022
Last update November 6, 2024

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

A vulnerability in the software upgrade process 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 write arbitrary files on the affected system. This vulnerability is due to improper restrictions applied to a system script. An attacker could exploit this vulnerability by using crafted variables during the execution of a system upgrade. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges.

Key dates

02Disclosure timeline

April 21, 2022 CVE published
November 6, 2024 Record updated