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Win32k ConsoleControl Offset Confusion / Privilege Escalation Exploit

[ 0Day-ID-37433 ]
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Win32k ConsoleControl Offset Confusion / Privilege Escalation Exploit [ Highlight ]
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free
Risk
[
Security Risk High
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Description
A vulnerability exists within win32k that can be leveraged by an attacker to escalate privileges to those of NT AUTHORITY\SYSTEM. The flaw exists in how the WndExtra field of a window can be manipulated into being treated as an offset despite being populated by an attacker-controlled value. This can be leveraged to achieve an out of bounds write operation, eventually leading to privilege escalation. This flaw was originally identified as CVE-2021-1732 and was patched by Microsoft on February 9th, 2021. In early 2022, a technique to bypass the patch was identified and assigned CVE-2022-21882. The root cause is is the same for both vulnerabilities. This exploit combines the patch bypass with the original exploit to function on a wider range of Windows 10 targets.
CVE
CVE-2021-1732
CVE-2022-21882
Other Information
Abuses
0
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0
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Author
BL
29
Exploits
1616
Readers
57
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