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IBM GINA for NT Privilege Escalation Vulnerability

IBM has written a replacement GINA for Windows NT to allow NT hosts to authenticate against OS/2 domains. On machines running the modified GINA, the creation of a specific Registry key under HKLM\System\CurrentControlSet\Services\IBMNeTNT may allow a user to add any Group to the "Local Administrators" group upon next reboot. ACL permissions over this key allow non-administrators to create the necessary key and value.







 

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