// For flags

CVE-2019-1851

Cisco Identity Services Engine Arbitrary Client Certificate Creation Vulnerability

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the External RESTful Services (ERS) API of the Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to generate arbitrary certificates signed by the Internal Certificate Authority (CA) Services on ISE. This vulnerability is due to an incorrect implementation of role-based access control (RBAC). An attacker could exploit this vulnerability by crafting a specific HTTP request with administrative credentials. A successful exploit could allow the attacker to generate a certificate that is signed and trusted by the ISE CA with arbitrary attributes. The attacker could use this certificate to access other networks or assets that are protected by certificate authentication.

Una vulnerabilidad en la API de External RESTful Services (ERS) del Cisco Identity Services Engine (ISE), podría permitir a un atacante remoto autenticado generar certificados arbitrarios firmados por los Servicios de la Internal Certificate Authority (CA) en el ISE. Esta vulnerabilidad es debido a una implementación inadecuada del control de acceso basado en roles (RBAC). Un atacante podría explotar esta vulnerabilidad al crear una solicitud HTTP específica con credenciales administrativas. Un explotación exitosa podría permitir al atacante generar un certificado firmado y de confianza por parte de la ISE CA con atributos arbitrarios. El atacante podría usar este certificado para acceder a otras redes o activos que están protegidos por autenticación de certificado.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-12-06 CVE Reserved
  • 2019-05-16 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-285: Improper Authorization
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"
 Identity Services Engine
Search vendor "Cisco" for product "Identity Services Engine"
 2.2\(0.470\)
Search vendor "Cisco" for product "Identity Services Engine" and version "2.2\(0.470\)"
-
Affected
Cisco
Search vendor "Cisco"
 Identity Services Engine
Search vendor "Cisco" for product "Identity Services Engine"
 2.3\(0.298\)
Search vendor "Cisco" for product "Identity Services Engine" and version "2.3\(0.298\)"
-
Affected
Cisco
Search vendor "Cisco"
 Identity Services Engine
Search vendor "Cisco" for product "Identity Services Engine"
 2.4\(0.357\)
Search vendor "Cisco" for product "Identity Services Engine" and version "2.4\(0.357\)"
-
Affected