SB2022042130 - External Control of File Name or Path in Cisco Unified Communications Products
Published: April 21, 2022
Security Bulletin ID
SB2022042130
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) External Control of File Name or Path (CVE-ID: CVE-2022-20789)
The vulnerability allows a user attacker to write arbitrary files.
The vulnerability exists due to improper restrictions applied to a system script in the software upgrade process. A remote administrator can use specially crafted variables during the execution of a system upgrade and write arbitrary files on the system.
Remediation
Install update from vendor's website.