Attacker Value
Very High
2
CVE-2022-21906
2
CVE ID
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Attacker Value
Very High
(1 user assessed)
Exploitability
Very High
(1 user assessed)User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
2
MITRE ATT&CK
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Execution
Techniques
Validation
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Validated
Validated
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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Description
Windows Defender Application Control Security Feature Bypass Vulnerability.
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1
Ratings
-
Attacker ValueVery High
-
ExploitabilityVery High
Technical Analysis
CVE-2022-21906
Microsoft
Vendor
Description
Windows Defender Application Control Security Feature Bypass Vulnerability.
The attacker can execute extremely dangerous apps by using different scenarios,
directly from the user profile, without any reaction from the side of the Windows Defender.
Read more: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21906
The latest version of Windows 10 Pro, plus the latest update!
Reproduce:
Proof and Exploit
BugCheck after the exploit, the reaction of the kernel:
BSOD.exe
1: kd> !analyze ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Unknown bugcheck code (c0000022) Unknown bugcheck description Arguments: Arg1: 0000000000000000 Arg2: 0000000000000000 Arg3: 0000000000000000 Arg4: 0000000000000000 Debugging Details: ------------------ ERROR_CODE: (NTSTATUS) 0xc0000022 - {Access Denied} A process has requested access to an object, but has not been granted those access rights. BUGCHECK_CODE: c0000022 BUGCHECK_P1: 0 BUGCHECK_P2: 0 BUGCHECK_P3: 0 BUGCHECK_P4: 0 PROCESS_NAME: BSOD.exe SYMBOL_NAME: nt!PopTransitionSystemPowerStateEx+1217 MODULE_NAME: nt IMAGE_NAME: ntkrnlmp.exe FAILURE_BUCKET_ID: STATUS_ACCESS_DENIED_nt!PopTransitionSystemPowerStateEx FAILURE_ID_HASH: {7fcb0a96-b639-2e09-82d6-2eef48bdcdea} Followup: MachineOwner ---------
malicious.exe
0: kd> !analyze ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Unknown bugcheck code (c0000022) Unknown bugcheck description Arguments: Arg1: 0000000000000000 Arg2: 0000000000000000 Arg3: 0000000000000000 Arg4: 0000000000000000 Debugging Details: ------------------ ERROR_CODE: (NTSTATUS) 0xc0000022 - {Access Denied} A process has requested access to an object, but has not been granted those access rights. BUGCHECK_CODE: c0000022 BUGCHECK_P1: 0 BUGCHECK_P2: 0 BUGCHECK_P3: 0 BUGCHECK_P4: 0 PROCESS_NAME: malicious.exe SYMBOL_NAME: nt!PopTransitionSystemPowerStateEx+1217 MODULE_NAME: nt IMAGE_NAME: ntkrnlmp.exe FAILURE_BUCKET_ID: STATUS_ACCESS_DENIED_nt!PopTransitionSystemPowerStateEx FAILURE_ID_HASH: {7fcb0a96-b639-2e09-82d6-2eef48bdcdea} Followup: MachineOwner ---------
BR
.\nu11secur1ty
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Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows Server 2019
Windows Server 2019 (Core installation)
Windows 10 Version 1909 for 32-bit Systems
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 21H1 for x64-based Systems
Windows 10 Version 21H1 for ARM64-based Systems
Windows 10 Version 21H1 for 32-bit Systems
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows 10 Version 20H2 for x64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for ARM64-based Systems
Windows Server, version 20H2 (Server Core Installation)
Windows 11 for x64-based Systems
Windows 11 for ARM64-based Systems
Windows 10 Version 21H2 for 32-bit Systems
Windows 10 Version 21H2 for ARM64-based Systems
Windows 10 Version 21H2 for x64-based Systems
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- Microsoft
Products
- Windows,
- Windows Server,
- Windows 10 Version 1909 for 32-bit Systems,
- Windows 10 Version 1909 for x64-based Systems,
- Windows 10 Version 1909 for ARM64-based Systems,
- Windows 10 Version 21H1 for x64-based Systems,
- Windows 10 Version 21H1 for ARM64-based Systems,
- Windows 10 Version 21H1 for 32-bit Systems,
- Windows Server 2022,
- Windows Server 2022 (Server Core installation),
- Windows 10 Version 20H2 for x64-based Systems,
- Windows 10 Version 20H2 for 32-bit Systems,
- Windows 10 Version 20H2 for ARM64-based Systems,
- Windows Server, version 20H2 (Server Core Installation),
- Windows 11 for x64-based Systems,
- Windows 11 for ARM64-based Systems,
- Windows 10 Version 21H2 for 32-bit Systems,
- Windows 10 Version 21H2 for ARM64-based Systems,
- Windows 10 Version 21H2 for x64-based Systems
References
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 Exploited in the Wild
CVE ID
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