Attacker Value
Unknown
0
CVE-2021-31956
0
CVE ID
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CVE-2021-31956
(Last updated July 30, 2024) ▾
MITRE ATT&CK
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Collection
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Command and Control
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Credential Access
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Defense Evasion
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Discovery
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Execution
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Exfiltration
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Impact
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Initial Access
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Lateral Movement
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Persistence
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Privilege Escalation
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Description
Windows NTFS Elevation of Privilege Vulnerability
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Windows 10 Version 1809 10.0.17763.1999
Windows Server 2019 10.0.17763.1999
Windows Server 2019 (Server Core installation) 10.0.17763.1999
Windows 10 Version 1909 10.0.18363.1621
Windows 10 Version 21H1 10.0.19043.1052
Windows 10 Version 2004 10.0.19041.1052
Windows Server version 2004 10.0.19041.1052
Windows 10 Version 20H2 10.0.19042.1052
Windows Server version 20H2 10.0.19042.1052
Windows 10 Version 1507 10.0.10240.18967
Windows 10 Version 1607 10.0.14393.4467
Windows Server 2016 10.0.14393.4467
Windows Server 2016 (Server Core installation) 10.0.14393.4467
Windows 7 6.1.7601.25632
Windows 7 Service Pack 1 6.1.7601.25632
Windows 8.1 6.3.9600.20045
Windows Server 2008 Service Pack 2 6.0.6003.21137
Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.21137
Windows Server 2008 Service Pack 2 6.0.6003.21137
Windows Server 2008 R2 Service Pack 1 6.1.7601.25632
Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.25632
Windows Server 2012 6.2.9200.23372
Windows Server 2012 (Server Core installation) 6.2.9200.23372
Windows Server 2012 R2 6.3.9600.20045
Windows Server 2012 R2 (Server Core installation) 6.3.9600.20045
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- microsoft
Products
- windows 10 1507,
- windows 10 1607,
- windows 10 1809,
- windows 10 1809,
- windows 10 1909,
- windows 10 2004,
- windows 10 20h2,
- windows 10 21h1,
- windows 7 -,
- windows 8.1 -,
- windows rt 8.1 -,
- windows server 2004,
- windows server 2008 r2,
- windows server 2008 sp2,
- windows server 2012 -,
- windows server 2012 r2,
- windows server 2016,
- windows server 2019,
- windows server 20h2
Exploited in the Wild
AttackerKB Worker indicated source as
Government or Industry Alert (https://www.cisa.gov/known-exploited-vulnerabilities-catalog)
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Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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