Improper Authentication in Microsoft Windows and Windows Server - CVE-2016-0049

 

Improper Authentication in Microsoft Windows and Windows Server - CVE-2016-0049

Published: February 9, 2016 / Updated: April 7, 2020


Vulnerability identifier: #VU4848
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-0049
CWE-ID: CWE-287
Exploitation vector: Local access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local user to bypass authentication process.

The vulnerability exists due to security feature bypass in Windows when Kerberos fails to check the password change of a user signing into a workstation.  An attacker could bypass Kerberos authentication by connecting a workstation to a malicious Kerberos Key Distribution Center (KDC) and gain access to sensitive data.


Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2016-0049

Install update from vendor's website.


Links to Public Exploits and PoC-codes

External References

Related Security Bulletins