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New Linux SUDO flaw lets local users gain root privileges
A dangerous (but now-fixed) Sudo vulnerability allowed any local user to gain root privileges on Linux systems without requiring authentication.
Sudo is a Unix program that enables system admins to provide limited root privileges to normal users listed in the sudoers file, while at the same time keeping a log of their activity.
It works on the Principle of Least Privilege where the program gives people just enough permissions to get their work done without compromising the system's overall security.