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Vulnerability · Published Feb 14, 2023 · Assigned by microsoft

CVE-2023-21817Windows Kerberos Elevation of Privilege Vulnerability

High 7.8

In plain English

A high-severity improper authentication in Windows 10 Version 1507 from Microsoft. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.8%top 43.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Public PoC

Official description

Windows Kerberos Elevation of Privilege Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.19747
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.5717
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.4010
Microsoft Windows 10 Version 1809 10.0.0 – before 10.0.17763.4010
Microsoft Windows 10 Version 20H2 10.0.0 – before 10.0.19042.2604
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.2604
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.2604
Microsoft Windows 11 version 21H2 10.0.0 – before 10.0.22621.1574
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.1265
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.21915
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before 6.1.7601.26366
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before 6.1.7601.26366
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.21915
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before 6.0.6003.21915
Microsoft Windows Server 2012 6.2.9200.0 – before 6.2.9200.24116
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before 6.2.9200.24116
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.20821
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.20821
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.5717
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.5717
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.4010
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.4010
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.1547

Weakness: CWE-287 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References