// For flags

CVE-2020-3267

Cisco Unified Contact Center Express Improper API Authorization Vulnerability

Severity Score

7.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A vulnerability in the API subsystem of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to change the availability state of any agent. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by authenticating to an affected system with valid agent credentials and performing a specific API call with crafted input. A successful exploit could allow the attacker to change the availability state of an agent, potentially causing a denial of service condition.

Una vulnerabilidad en el subsistema de la API de Cisco Unified Contact Center Express (Unified CCX), podría permitir a un atacante remoto autenticado cambiar el estado de disponibilidad de cualquier agente. La vulnerabilidad es debido a una insuficiente aplicación de la autorización sobre un sistema afectado. Un atacante podría explotar esta vulnerabilidad autenticándose sobre un sistema afectado con credenciales de agente válidas y llevando a cabo una llamada API específica con una entrada diseñada. Una explotación con éxito podría permitir al atacante cambiar el estado de disponibilidad de un agente, causando potencialmente una condición de denegación de servicio.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-06-03 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-15 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-285: Improper Authorization
  • CWE-552: Files or Directories Accessible to External Parties
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 Contact Center Express
Search vendor "Cisco" for product "Unified Contact Center Express"
 < 12.5\(1\)
Search vendor "Cisco" for product "Unified Contact Center Express" and version " < 12.5\(1\)"
-
Affected