Upgrade Shell

Shell Spawning

Python

python -c 'import pty;pty.spawn("/bin/bash")'

Echo

echo os.system('/bin/bash')

/bin/sh

/bin/sh -i

Perl

perl —e 'exec "/bin/sh";'

perl: exec "/bin/sh";

Ruby

ruby: exec "/bin/sh"

Lua

lua: os.execute('/bin/sh')

Exec from within IRB

exec "/bin/sh"

From within vi

:!bash

:set shell=/bin/bash:shell

From within Nmap

!sh

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