Microsoft Active Directory Domain Services Privilege Escalation Vulnerability

Active Directory Domain Services Elevation of Privilege Vulnerability

CheckOps priority index

7.8/10 Patch within 7 days

Severity8.8

Probability8.3

Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 83.5% higher than 99.7% of CVEs

CVSS 3.1 8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:

Exploited for 1,538 days 18 Aug 2022

CISA due date 08 Sept 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

KEV catalog (CISA)18 Aug 2022
Exploited in EUVD (ENISA)18 Aug 2022
Used by ransomwareno
EPSS above 10 %83.5%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Affected products

Windows Server 2012 R2 (Server Core installation)Windows 10 Version 20H2Windows 11 version 21H2Windows Server 2016Windows 10 Version 1809Windows Server version 20H2Windows Server 2016 (Server Core installation)Windows 10 Version 1507Windows 10 Version 21H2Windows 10 Version 1607Windows 10 Version 21H1Windows Server 2022Windows Server 2019 (Server Core installation)Windows Server 2012 R2Windows 10 Version 1909Windows 8.1Windows Server 2019Active Directory

Affected versions

6.3.9600.0 <6.3.9600.20919
10.0.0 <10.0.19042.1706
10.0.0 <10.0.22000.1817
10.0.14393.0 <10.0.14393.5850
10.0.0 <10.0.17763.4252
10.0.10240.0 <10.0.10240.19297
10.0.19043.0 <10.0.19043.1706
10.0.17763.0 <10.0.17763.4252
10.0.0 <10.0.19043.1706
10.0.20348.0 <10.0.20348.1668
10.0.0 <10.0.18363.2274
6.3.0 <6.3.9600.20371

Weaknesses (CWE)

CWE-295

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

10 May 2022
Published
18 Aug 2022
Exploitation reported (ENISA)
18 Aug 2022
Added to the KEV catalog
08 Sept 2022
CISA remediation due date
26 Sept 2026
EPSS peak: 83.5%

References

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