SB2018081417 - Authentication bypass in Active Directory Federation Services



SB2018081417 - Authentication bypass in Active Directory Federation Services

Published: August 14, 2018

Security Bulletin ID SB2018081417
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Authentication bypass (CVE-ID: CVE-2018-8340)

The vulnerability allows a remote attacker to bypass certain authentication factors.

The vulnerability exists due to an error when processing multi-factor authentication requests within Active Directory Federation Services (AD FS). A remote attacker can bypass certain authentication factors during multi-factor authentication and gain unauthorized access to sensitive data and functionality. 


Remediation

Install update from vendor's website.