Vulnerability Name:

CVE-2021-1478 (CCN-201266)

Assigned:2020-11-13
Published:2021-05-05
Updated:2021-05-14
Summary:A vulnerability in the Java Management Extensions (JMX) component 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 cause a denial of service (DoS) condition on an affected system. This vulnerability is due to an unsecured TCP/IP port. An attacker could exploit this vulnerability by accessing the port and restarting the JMX process. A successful exploit could allow the attacker to cause a DoS condition on an affected system.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-Other
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-1478

Source: XF
Type: UNKNOWN
cisco-cve20211478-dos(201266)

Source: CCN
Type: Cisco Security Advisory cisco-sa-ucm-dos-OO4SRYEf
Cisco Unified Communications Manager Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20210505 Cisco Unified Communications Manager Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:hosted_collaboration_mediation_fulfillment:*:*:*:*:*:*:*:* (Version < 12.6:)
  • OR cpe:/a:cisco:unified_communications_manager:*:*:*:*:-:*:*:* (Version < 12.6:)
  • OR cpe:/a:cisco:unified_communications_manager:*:*:*:*:session_management:*:*:* (Version < 12.6:)

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

    • * Denotes that component is vulnerable
    BACK
    cisco hosted collaboration mediation fulfillment *
    cisco unified communications manager *
    cisco unified communications manager *
    cisco unified communications manager -