CVE-2022-20789

CVSS V2 High 8.5 CVSS V3 Medium 6.5
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.
Overview
  • CVE ID
  • CVE-2022-20789
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-04-21T19:15:08
  • Last Modified Date
  • 2022-05-03T16:56:44
Weakness Enumerations
CWE URL
CWE-610 http://cwe.mitre.org/data/definitions/610.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:-:*:*:* 1 OR
cpe:2.3:a:cisco:unified_communications_manager:12.5\(1\):*:*:*:session_management:*:*:* 1 OR
cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:-:*:*:* 1 OR
cpe:2.3:a:cisco:unified_communications_manager:14.0:*:*:*:session_management:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 8.5
  • Severity
  • HIGH
  • Exploitability Score
  • 8
  • Impact Score
  • 9.2
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.2
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-arb-write-74QzruUU Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2022-20789
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20789
History
Created Old Value New Value Data Type Notes
2022-05-08 06:19:25 Added to TrackCVE