Thread: chroot, how ?
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Old 22nd April 2019
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jggimi jggimi is offline
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Join Date: May 2008
Location: USA
Posts: 7,062

True. From the chroot(2) syscall man page:
     There are ways for a root process to escape from the chroot jail.
     Changes to the directory hierarchy made from outside the chroot jail may
     allow a restricted process to escape, even if it is unprivileged.
     Passing directory file descriptors via recvmsg(2) from outside the chroot
     jail may also allow a process to escape.
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