CVE Vulnerability

CVE-2022-20789

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.

8.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 9.2

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-arb-write-74QzruUU Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:cisco:unified_communications_manager:12.5(1):*:*:*:session_management:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5(1):*:*:*:-:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:session_management:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:-:*:*:*
Information

Published : 2022-04-21 07:15

Updated : 2022-05-03 04:56

NVD link : CVE-2022-20789

Mitre link : CVE-2022-20789

Products Affected
No products.
CWE
CWE-610