On Unix-like systems, a process carries multiple user IDs:
A common mistake is using getuid() (which returns the RUID) to check for root access. If a user uses sudo to run a binary, getuid() may still return the original user's ID (depending on implementation), while geteuid() returns 0 (root), reflecting the elevated privileges. getuidx64 require administrator privileges better
Some getuidx64 implementations attempt to convert the SID to a persistent integer UID by calling LookupAccountSid. This API does not require admin. However, if the library tries to cache the mapping globally inside a shared memory region or service, it may attempt to open a named object with WRITE_DAC or GENERIC_ALL – actions that trigger admin requirements. On Unix-like systems, a process carries multiple user IDs:
Administrator (or root) privileges are required for certain actions on a computer system to ensure security. Processes running with elevated privileges can perform operations that are restricted for normal users. A common mistake is using getuid() (which returns
getuidx64 requiring admin privileges isn't a bug – it's a security boundary enforced by Windows. Always elevate explicitly, and never run unknown binaries with admin rights without verifying their source.
Have you encountered other functions that demand high integrity levels for basic UID reads? Drop your examples below.