Vulnerability Name:

CVE-2019-12711 (CCN-168174)

Assigned:2019-10-02
Published:2019-10-02
Updated:2019-10-09
Summary:A vulnerability in the web-based interface of Cisco Unified Communications Manager and Cisco Unified Communications Manager Session Management Edition (SME) could allow an unauthenticated, remote attacker to access sensitive information or cause a denial of service (DoS) condition. The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by sending malicious requests to an affected system that contain references in XML entities. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information, or cause the application to consume available resources, resulting in a DoS condition.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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): Low
Integrity (I): None
Availibility (A): Low
6.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:L)
5.3 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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): Required
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-611
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2019-12711

Source: XF
Type: UNKNOWN
cisco-cve201912711-info-disc(168174)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20191002-cucm-xxe
Cisco Unified Communications Manager XML External Expansion Vulnerability

Source: CISCO
Type: Vendor Advisory
20191002 Cisco Unified Communications Manager XML External Expansion Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:unified_communications_manager:10.5(2.10000.5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:11.5(1.10000.6):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:12.0(1.10000.10):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:12.5(1.10000.22):*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:unified_communications_manager:10.5(2)su5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco unified communications manager 10.5(2.10000.5)
    cisco unified communications manager 11.5(1.10000.6)
    cisco unified communications manager 12.0(1.10000.10)
    cisco unified communications manager 12.5(1.10000.22)
    cisco unified communications manager 10.5(2)su5