Cyber-warfare specialists serving with the 175th Cyberspace Operations Group, which provides forces to a national mission team belonging to the U.S. Cyber Command, participate in training. CYBERCOM released a recommendation to Unix and Linux users to update systems to prevent hacker access. (U.S. Air Force J.M. Eddins Jr.)

Cybersecurity researchers and the U.S. Cyber Command are warning users about a decade-old buffer overflow bug in sudo that can grant root access to malicious users with low level access to systems.

The vulnerability, discovered by Qualys and nicknamed "Baron Samedit," affects all versions of Linux Qualys has tested against. The glitch allows users, even those off of sudoers list, to gain root access. It has been patched in the latest release of sudo.

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