CVE-2019-1019
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.
- Score
- CVSS 3.1 8.5 High
- Status
- Modified - secure@microsoft.com
- Published
- 2019-06-12
- Last modified
- 2025-05-20
- Weaknesses
- CWE-200
Affected products
- Windows 10 (Microsoft)
- Windows 10 1507 (Microsoft)
- Windows 10 1607 (Microsoft)
- Windows 10 1809 (Microsoft)
- Windows 7 (Microsoft)
- Windows 8.1 (Microsoft)
- Windows Rt 8.1 (Microsoft)
- Windows Server 1803 (Microsoft)
- Windows Server 1903 (Microsoft)
- Windows Server 2008 (Microsoft)
- Windows Server 2008 R2 (Microsoft)
- Windows Server 2008 Sp2 (Microsoft)
- Windows Server 2012 (Microsoft)
- Windows Server 2012 R2 (Microsoft)
- Windows Server 2016 (Microsoft)
- Windows Server 2019 (Microsoft)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1019
- http://packetstormsecurity.com/files/153639/Microsoft-Windows-HTTP-To-SMB-NTLM-Reflection-Privilege-Escalation.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1019
