The original description indicated that the vulnerability is a heap-based buffer overflow, affecting Sudo before 1.9.5p2. Only minor changes to the original exploit are needed to exploit the bug on macOS. The version shipped with MacOS 11.1 is: % sudo -versionĪccording to Qualys, vulnerable legacy versions are 1.8.2 to 1.8.31p2.Īs for getting sudoedit to crash like qualys demonstrated: % ~/sudoedit -s '\' `python -c 'print "A"*255'` Researcher Matthew Hickey says that the CVE-2021-3156 bug also impacts macOS. rw-r-r- 1 root wheel 47 27 Jan 00:21 /etc/fooĪs for the test the OP wanted to try: (the line starting with sudoedit: supposedly indicates a vulnerable version) %. Using sudoedit to create file owned by root. Sudo allows a system administrator to give certain users (or groups of users) the ability to run some or all commands with root privileges while logging all commands and arguments.
Last week, we talked about the death of Emotet after a team of law enforcement agencies from around the world took over Emotet C2 servers and arrested multiple individuals. A security researcher discovered a security flaw in the Sudo app that impacts the latest macOS operating systems and other operating systems.
Rootgiving sudo bug impacts macos update#
It appears that MacOS is affected.Įdit: I'm guessing that I got downvoted because someone didn't believe my symbolic link theory, so here is proof that any user can recreate their own sudoedit link and use it as far as they could the original. A sudo vulnerability you may need to update A recent Google Chrome update that has caused quite the stir Read on. A security researcher discovered a security flaw in the Sudo app that impacts the latest macOS operating systems and other operating systems. Although sudoedit doesn't exist normally, an attacker can make a symbolic link sudoedit pointing to sudo so #3 can be run.
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