9/5/2023 0 Comments Carbon copy cloner itaNote: Older software sometimes sets the setuid and setgid bits for the executable file, and sets the owner and group of the file to the privilege level it needs (often with the root user and the wheel group). Apple specifically discourages this practice: While this is a popular technique on Linux and much, much older versions of Mac OS X, there is still a significant potential vulnerability with this approach – any user can open that privileged application and potentially use it as a puppet to perform privileged tasks. The antiquated technique is for the parent application to ask for administrator authentication, then change the owner of the privileged application to the root user, then set a special mode on that application that allows that application to run with the privileges of the owner of the application (root). Even here, though, there is a right way and a wrong way for the isolated application to gain elevated privileges. This is a common practice known as privilege separation. This would grant far too much privilege, though, because it also gives the user (or malware that is exploiting the application) privileged access to other users' files.Ī better way to securely acquire elevated privileges is to isolate the code that requires those privileges into a separate, "faceless" application. The application would then have all of the privileges it needs. The simplest – and least secure – method to do this would be to prompt the user to authenticate when he opens the application, and then relaunch the application as the "root" user. There are a few different ways to perform a task on macOS with elevated privileges. If you, as the administrator of the Mac, want CCC to back up everybody's files, then again, CCC requires elevated privileges. macOS prevents you from accessing files that belong to other users. Likewise, CCC is often tasked with copying the data associated with multiple users. user accounts), CCC needs to have the privilege of copying files that can't be read nor written by just any user. In order for CCC to be able to make copies of system files (e.g. CCC 6.0: May 2021 - Added Apple Silicon support and quicker backup updates through FSEvents.At its core, CCC is a product that is designed to make backups of your Mac's user data, applications and system settings.CCC 5.0: August 2017 - New interface for defining task filters.CCC 4.0: October 2014 - Rebuilt with a task-centric interface.CCC 3.4: July 2011 - Updated for Mac OS X Tiger, Lion, and Snow Leopard.CCC 3.0: September 2007 - New redesigned interface and added Intel processor support.CCC 2.0: November 2002 - Added a scheduler and the ability to choose any volume source.It then changed from shareware to a commercial trialware application published by Bombich Software. With the release of Mac OS X Lion in 2010, Bombich was receiving 120 support inquiries a day for Carbon Copy Cloner. After prototyping it in AppleScript, Carbon Copy Cloner 1.0 was released through VersionTracker on January 18, 2002. History īombich first thought of the backup application concept while providing tech support at Bowling Green State University because there was not yet any cloning utility for Mac OS X. Carbon Copy Cloner can make complete bootable clones or incremental backups of HFS Plus or APFS volumes.
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