CVEvulnerability
CVE-2019-1019
8.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-06-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 8.5 HIGH — CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.0 MEDIUM — AV:N/AC:M/Au:S/C:P/I:P/A:P
- Weaknesses
- CWE-200
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.
Affected configurations
• microsoft windows 10
• microsoft windows 10 1607
• microsoft windows 10 1703
• microsoft windows 10 1709
• microsoft windows 10 1803
• microsoft windows 10 1809
• microsoft windows 10 1903
• microsoft windows 7
• microsoft windows 8.1
• microsoft windows rt 8.1
• microsoft windows server 2008
• microsoft windows server 2008 r2
• microsoft windows server 2012
• microsoft windows server 2012 r2
• microsoft windows server 2016
• microsoft windows server 2016 1803
• microsoft windows server 2016 1903
• microsoft windows server 2019
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1019 msrc.microsoft.com
- http://packetstormsecurity.com/files/153639/Microsoft-Windows-HTTP-To-SMB-NTLM-Reflection-Privilege-Escalation.html Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1019 Patch, Vendor Advisory