Sudo Flaw Opens Potential Security Risk for OS X, Linux A security flaw in the command line tool sudo in OS X 10.7 and higher, as well as some Linux distributions, could give unauthorized root access to user’s computers. The flaw was reported by Metasploit, a company that specializes in finding security issues and building utilities to point them out, but the steps needed to exploit this particular issue make it unlikely most Mac users will become victims before a patch is available.