CVE-2019-1851: cisco cisco identity services engine software Improper Authorization

Vulnerability summary

CVE-2019-1851 is a medium (CVSS 6.8) Improper Authorization vulnerability in cisco cisco identity services engine software. EPSS estimates a 1.10% chance of exploitation in the next 30 days, higher than 65.3% of scored vulnerabilities.

Timeline

1. 16-05-2019
   PublishedVulnerability first disclosed.
2. 21-11-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-285Improper AuthorizationThe product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.