Vulnerability Description
A security feature bypass vulnerability exists in Active Directory Federation Services (ADFS) which could allow an attacker to bypass the extranet lockout policy.To exploit this vulnerability, an attacker could run a specially crafted application, which would allow an attacker to launch a password brute-force attack or cause account lockouts in Active Directory.This security update corrects how ADFS handles external authentication requests., aka 'ADFS Security Feature Bypass Vulnerability'. This CVE ID is unique from CVE-2019-0975.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | - |
| Microsoft | Windows Server 2019 | - |
Related Weaknesses (CWE)
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1126PatchVendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1126PatchVendor Advisory
FAQ
What is CVE-2019-1126?
CVE-2019-1126 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A security feature bypass vulnerability exists in Active Directory Federation Services (ADFS) which could allow an attacker to bypass the extranet lockout policy.To exploit this vulnerability, an atta...
How severe is CVE-2019-1126?
CVE-2019-1126 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1126?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.