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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.

HireHackking 
OPAC KpwinSQL LFI/XSS Vulnerabilities

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Product Website	: http://www.kpsys.cz/
Affected version: All
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Description: 
KpwinSQL suffers from an unauthenticated file inclusion vulnerability (LFI) when input passed thru the 'lang' parameter to the following scripts which are not properly verified:
	+ index.php
	+ help.php
	+ logpin.php
	+ brow.php
	+ indexs.php
	+ search.php
	+ hledani.php
	+ hled_hesl.php
before being used to include files. This can be exploited to include files from local resources with their absolute path and with directory traversal attacks.

Moreover, KpwinSQL system suffers from Cross Site Scripting vulnerability when input passed thru the 'vyhl' parameter to 'index.php' script which does not perform input validation.

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Tested on: Apache/2.2.11 (Win32)
           PHP/5.2.9-2
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Vulnerabilities discovered by Yakir Wizman
                              https://www.linkedin.com/in/yakirwizman
Date: 06.07.2016
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Proof Of Concept:

Local File Inclusion example:
http://server/index.php?lang=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fwindows%2fwin.ini%00

Cross Site Scripting example:
http://server/index.php?vyhl='><script>alert('XSS')</script>&lang=cze