CVE-2019-9510

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Summary

CVECVE-2019-9510
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-01-15 17:15:00 UTC
Updated2023-11-07 03:13:00 UTC
DescriptionA vulnerability in Microsoft Windows 10 1803 and Windows Server 2019 and later systems can allow authenticated RDP-connected clients to gain access to user sessions without needing to interact with the Windows lock screen. Should a network anomaly trigger a temporary RDP disconnect, Automatic Reconnection of the RDP session will be restored to an unlocked state, regardless of how the remote system was left. By interrupting network connectivity of a system, an attacker with access to a system being used as a Windows RDP client can gain access to a connected remote system, regardless of whether or not the remote system was locked. This issue affects Microsoft Windows 10, version 1803 and later, and Microsoft Windows Server 2019, version 2019 and later.

Risk And Classification

Problem Types: CWE-755

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Microsoft Windows 10 1803 All All All
Operating System Microsoft Windows 10 1803 All All All
Operating System Microsoft Windows Server 2019 - All All All
Operating System Microsoft Windows Server 2019 - All All All

References

ReferenceSourceLinkTags
Configure Network Level Authentication for Remote Desktop Services Connections | Microsoft Docs MISC docs.microsoft.com Patch, Vendor Advisory
[MS-RDPBCGR]: Automatic Reconnection | Microsoft Docs MISC docs.microsoft.com Patch, Vendor Advisory
RDS 2019 (but probably other versions as well): locked RDP session logs in after session reconnect MISC social.technet.microsoft.com Patch, Vendor Advisory
Configure Network Level Authentication for Remote Desktop Services Connections | Microsoft Docs docs.microsoft.com
VU#576688 - Microsoft Windows RDP can bypass the Windows lock screen CERT-VN www.kb.cert.org Third Party Advisory, US Government Resource
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Thanks to Joe Tammariello of the SEI for reporting this vulnerability.

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