Vulnerability Name:

CVE-2022-20816 (CCN-232735)

Assigned:2021-11-02
Published:2022-08-03
Updated:2022-08-12
Summary:A vulnerability in the web-based management interface 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 delete arbitrary files from an affected system. This vulnerability exists because the affected software does not properly validate HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected software. A successful exploit could allow the attacker to delete arbitrary files from the affected system.
CVSS v3 Severity:8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-22
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2022-20816

Source: XF
Type: UNKNOWN
cisco-cve202220816-file-deletion(232735)

Source: CCN
Type: Cisco Security Advisory cisco-sa-cucm-file-delete-N2VPmOnE
Cisco Unified Communications Manager Arbitrary File Deletion Vulnerability

Source: CISCO
Type: Vendor Advisory
20220803 Cisco Unified Communications Manager Arbitrary File Deletion Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:* (Version >= 11.5(1) and < 14su2)
  • OR cpe:/a:cisco:unified_communications_manager:*:*:*:*:-:*:*:* (Version >= 11.5(1) and < 14su2)

    • Configuration CCN 1:
  • cpe:/a:cisco:unified_communications_manager:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco unified communications manager *
    cisco unified communications manager *
    cisco unified communications manager -