High
CVE-2022-21857
CVE ID
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CVE-2022-21857
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Active Directory Domain Services Elevation of Privilege Vulnerability
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Ratings
-
Attacker ValueHigh
-
ExploitabilityMedium
Technical Analysis
Privilege escalation in Active Directory Domain Services that allows for elevation of privilege across a network.
Given how popular Active Directory is this is pretty serious and I imagine this will likely be a very popular way to escalate privileges in internal engagements should an exploit come out for this.
Bug is noted as being related to Active Directory Domain Service environments that have incoming trusts, and that the bug allows attackers to escalate privileges across the trust boundary under certain conditions.
The fact that this is labeled as “under certain conditions” leads me to believe that this may not be a default configuration which is why I have labeled it as such in my report. However I would also provide a slight counterpoint to this in that AD networks are often sprawling and complex so there is a good likelihood that this may be enabled in some part of the network even if you are not aware of it.
Definitely one to patch if you are running AD networks.
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General Information
Vendors
- microsoft
Products
- windows 10 -,
- windows 10 1607,
- windows 10 1809,
- windows 10 1909,
- windows 10 20h2,
- windows 10 21h1,
- windows 10 21h2,
- windows 11 -,
- windows 7 -,
- windows 8.1 -,
- windows server 2008 r2,
- windows server 2012 -,
- windows server 2012 r2,
- windows server 2016 -,
- windows server 2019 -,
- windows server 2022,
- windows server 20h2
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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