SB2019090207 - Authentication bypass in Cisco REST API Container for IOS XE

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Main Vulnerability Database SB2019090207

SB2019090207 - Authentication bypass in Cisco REST API Container for IOS XE

Published: September 2, 2019

Security Bulletin ID SB2019090207
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper Authentication (CVE-ID: CVE-2019-12643)

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an improper check performed by the area of code that manages the REST API authentication service. A remote attacker can submit malicious HTTP requests to the targeted device, obtain the token-id of an authenticated user, bypass authentication and execute privileged actions through the interface of the REST API virtual service container.

This vulnerability affects the following devices that are configured to use a vulnerable version of Cisco REST API virtual service container:

  • Cisco 4000 Series Integrated Services Routers
  • Cisco ASR 1000 Series Aggregation Services Routers
  • Cisco Cloud Services Router 1000V Series
  • Cisco Integrated Services Virtual Router


Remediation

Install update from vendor's website.

References