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Windows User Profile Service Privlege Escalation Exploit

[ 0Day-ID-37625 ]
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Windows User Profile Service Privlege Escalation Exploit [ Highlight ]
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Platform
Verified
Price
free
Risk
[
Security Risk Critical
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Rel. releases
Description
The user profile service, identified as ProfSrv, is vulnerable to a local privilege elevation vulnerability in its CreateDirectoryJunction() function due to a lack of appropriate checks on the directory structure of the junctions it tries to link together. Attackers can leverage this vulnerability to plant a malicious DLL in a system directory and then trigger a UAC prompt to cause this DLL to be loaded and executed by ProfSrv as the NT AUTHORITY\SYSTEM user. Note that this bug was originally identified as CVE-2021-34484 and was subsequently patched a second time as CVE-2022-21919, however both patches were found to be insufficient. This bug is a patch bypass for CVE-2022-21919 and at the time of publishing, has not yet been patched, though plans are in place to patch it as CVE-2022-26904.
CVE
CVE-2021-34484
CVE-2022-21919
CVE-2022-26904
Other Information
Abuses
0
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Views
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This material is checked by Administration and absolutely workable.
Author
BL
29
Exploits
1671
Readers
57
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