CVE-2022-20789 — MEDIUM (4.9)

Vulnerability Description

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.

CVSS Score

4.9

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Cisco	Unified Communications Manager	12.5\(1\)

Related Weaknesses (CWE)

CWE-73 CWE-610

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cVendor Advisory

FAQ

What is CVE-2022-20789?

CVE-2022-20789 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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...

How severe is CVE-2022-20789?

CVE-2022-20789 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-20789?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Unified Communications Manager.