CVE-2016-3237 Security feature bypass in n/a
Man-in-the-middle attackers can bypass authentication during password changes by forcing a fallback to NTLM in Windows Kerberos implementations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-3237?
CVE-2016-3237 is a high-severity vulnerability in Microsoft Windows 10, published on 9 Aug 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Kerberos in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607 allows man-in-the-middle attackers to bypass authentication via vectors related to a fallback to NTLM authentication during a domain account password change, aka "Kerberos Security Feature Bypass Vulnerability."
Weakness: CWE-264
Which versions are affected by CVE-2016-3237?
It affects 8 products.
Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008 and 2 more.
How do I fix CVE-2016-3237?
No fix has been published for CVE-2016-3237 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-3237 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-3237 exists.
Public exploit code: 1 Exploit-DB entry.
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Sources
Also known as GHSA-g622-x7hw-5xm2.