SB2018081417 - Authentication bypass in Active Directory Federation Services
Published: August 14, 2018
Security Bulletin ID
SB2018081417
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Authentication bypass (CVE-ID: CVE-2018-8340)
CWE-ID: CWE-592 - Authentication Bypass Issues
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
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.