CVE-2024-30088 is a Windows kernel elevation of privilege vulnerability which affects many recent versions of Windows 10, Windows 11 and Windows Server 2022. The vulnerability exists inside the function called AuthzBasepCopyoutInternalSecurityAttributes specifically when the kernel copies the _AUTHZBASEP_SECURITY_ATTRIBUTES_INFORMATION of the current token object to user mode. When the kernel performs the copy of the SecurityAttributesList, it sets up the list of the SecurityAttributes structure directly to the user supplied pointed. It then calls RtlCopyUnicodeString and AuthzBasepCopyoutInternalSecurityAttributeValues to copy out the names and values of the SecurityAttribute leading to multiple Time Of Check Time Of Use (TOCTOU) vulnerabilities in the function.
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