Msr45 Isherlock-useradmin Cross-Site Request Forgery

Multi modules of MailSherlock MSR35 and MSR45 lead to a CSRF vulnerability. It allows attacker to add malicious email sources into whitelist via user/save_list.php?ACSION=&type=email&category=white&locate=big5&cmd=add&new=hacker@socialengineering.com&new_memo=&add=%E6%96%B0%E5%A2%9E without any authorizes. (2019-06-03, CVE-2019-9882)

Multi modules of MailSherlock MSR35 and MSR45 lead to a CSRF vulnerability. It allows attacker to elevate privilege of specific account via useradmin/cf_new.cgi?chief=&wk_group=full&cf_name=test&cf_account=test&cf_email=&cf_acl=Management&apply_lang=&dn= without any authorizes. (2019-06-03, CVE-2019-9883)

The absence of Anti-CSRF tokens may lead to a Cross-Site Request Forgery attack that can result in executing a specific application action as another logged in user, e.g. steal their account by changing their email and password or silently adding a new admin user account when executed from the administrator account.

The attacker may copy one of your web application forms, e.g. email/password change form.

The webpage will contain a form with the exact set of fields as the original application but with input values already provided and the submit button replaced with a Javascript code causing auto-submission. When the page is accessed the form will be immediately submitted and page contents replaced with a valid content or a redirect to your original application.

One of your application users who is already logged in can be then tricked to navigate to such malicious page e.g. by clicking a link in a phishing email, and the pre-populated form content will be submitted to your application like it would be submitted by your user.