> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/de/cms/cups-cms-exploitation.md).

# CUPS

CUPS-1.6.1-Exploitation-Notizen für ErrorLog-Umleitung, Missbrauch zum Lesen von Root-Dateien, Offenlegung von /etc/shadow, lokale Privilegieneskalation und Wiederherstellung sensibler Dateien.

### Ausnutzung der Schwachstelle in CUPS 1.6.1

{% embed url="<https://github.com/rapid7/metasploit-framework/blob/master/modules/post/multi/escalate/cups_root_file_read.rb>" %}

Verwendung von **cupsctl**, ändern Sie die **CUPS** Dienstkonfiguration, um umzuleiten **ErrorLog** auf eine sensible Datei wie **/etc/shadow**. Dadurch kann die Datei über die CUPS-Weboberfläche als root gelesen werden.

Befehl zum Ändern der Konfiguration:

```bash
cupsctl ErrorLog=/etc/shadow
```

Greifen Sie über den Tunnel auf die CUPS-Weboberfläche zu:

Dadurch wird der Inhalt von **/etc/shadow** und ermöglicht `root.txt` wiederhergestellt zu werden.

<figure><img src="https://2955439919-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fl4EVJpcOrsgjSGsLI7p2%2Fuploads%2Fgit-blob-f0976e5fefeb3292acb77770ae8bceedd1cc81f0%2Fimage%20(1032).png?alt=media" alt=""><figcaption></figcaption></figure>


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