CVE-2019-1019 Microsoft Windows Security Feature Bypass Vulnerability
An attacker can bypass NTLM security features to access another machine with original user privileges via a crafted NETLOGON message.
- 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-2019-1019?
CVE-2019-1019 is a high-severity vulnerability in Microsoft Windows 10, published on 12 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the session key and sign messages. To exploit this vulnerability, an attacker could send a specially crafted authentication request. An attacker who successfully exploited this vulnerability could access another machine using the original user privileges. The issue has been addressed by changing how NTLM validates network authentication messages.
Weakness: CWE-200
Which versions are affected by CVE-2019-1019?
It affects 8 products.
Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.
How do I fix CVE-2019-1019?
No fix has been published for CVE-2019-1019 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1019 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1019 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-5fqm-f4f4-5vpq.