CVE Vulnerability

CVE-2019-1887

A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-cucm-dos Patch Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:cisco:unified_communications_manager:11.5(1.10000.6):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:10.5(2.10000.5):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.0(1.10000.10):*:*:*:*:*:*:*
cpe:2.3:a:cisco:unified_communications_manager:12.5(1.10000.22):*:*:*:*:*:*:*
Information

Published : 2019-07-06 02:15

Updated : 2019-10-09 11:48

NVD link : CVE-2019-1887

Mitre link : CVE-2019-1887

Products Affected
No products.
CWE
CWE-787