CVE-2022-20789CWE-73

Cisco Unified Communications Products Arbitrary File Write Vulnerability

Medium · published April 21, 2022

CVSS v3.1
4.9
EPSS
1%
Percentile
72.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.01425 · 72.7th percentile
Weakness
CWE-73 · External Control of File Name or Path
Published
2022-04-21T18:50Z
EPSS history
Timeline
  • 21 APR 18:50Z
    Cisco Unified Communications Products Arbitrary File Write Vulnerability
    cvelistv5