Description: Cross Site Request Forgery (CSRF) vulnerability in issabel-pbx v.4.0.0-6 allows any remote attacker to make the application data not accessible to users by exploiting delete new virtual fax function in the application.
Vulnerable Product Version: issabel-pbx 4.0.0-6
Date: 10/07/2023
CVE: CVE-2023-37598
CVE Author: Sahil Ojha
Vendor Homepage: https://www.issabel.org/
Software Link: https://github.com/IssabelFoundation/issabelPBX
Tested on: Windows
Attack scenario:
When this CSRF exploit is hosted somewhere and users open or interact with this exploit in his browser with logged in session of issable application, user's new virtual fax will be deleted automatically from the admin panel/dashboard.
Steps to reproduce:
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Go to URL: https://{Issabel IP}/index.php?menu=faxnew&action=view&id=1 and login with admin credentials.
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Attempt to delete the Virtual Fax and capture the request in burp suite proxy, right-click on the request and go to “Engagement Tools --> Generate CSRF PoC”.
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Upon generating the CSRF exploit code shown below, copy the script and save it as html file.
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Send this file to the already logged-in user and when the user clicks on submit request the Virtual Fax will be deleted as shown in the figure below.
