// For flags

CVE-2019-1887

Cisco Unified Communications Manager Session Initiation Protocol Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

Una vulnerabilidad en la implementación del protocolo Session Initiation Protocol (SIP) del programa Cisco Unified Communications Manager, podría permitir a un atacante remoto no identificado causar una condición de denegación de servicio (DoS). La vulnerabilidad es debido a una comprobación insuficiente del tráfico de entrada bajo protocolo SIP. Un atacante podría aprovechar esta vulnerabilidad mediante el envío de un paquete SIP malformado hacia un programa Cisco Unified Communications Manager afectado. Una operación con éxito podría permitir al atacante activar un nuevo proceso de registro en todos los teléfonos conectados, interrumpiendo el servicio temporalmente.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2018-12-06 CVE Reserved
  • 2019-07-06 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Unified Communications Manager
Search vendor "Cisco" for product "Unified Communications Manager"
 10.5\(2.10000.5\)
Search vendor "Cisco" for product "Unified Communications Manager" and version "10.5\(2.10000.5\)"
-
Affected
Cisco
Search vendor "Cisco"
 Unified Communications Manager
Search vendor "Cisco" for product "Unified Communications Manager"
 11.5\(1.10000.6\)
Search vendor "Cisco" for product "Unified Communications Manager" and version "11.5\(1.10000.6\)"
-
Affected
Cisco
Search vendor "Cisco"
 Unified Communications Manager
Search vendor "Cisco" for product "Unified Communications Manager"
 12.0\(1.10000.10\)
Search vendor "Cisco" for product "Unified Communications Manager" and version "12.0\(1.10000.10\)"
-
Affected
Cisco
Search vendor "Cisco"
 Unified Communications Manager
Search vendor "Cisco" for product "Unified Communications Manager"
 12.5\(1.10000.22\)
Search vendor "Cisco" for product "Unified Communications Manager" and version "12.5\(1.10000.22\)"
-
Affected