Exchange 2019
Quickly Search and Remove Email from a mailbox in Exchange 2019.
In any organization, there comes a time where you have to delete email from an individual mailbox or multiple mailboxes because emails were sent out in error or an end user clicked a malware or phishing link and they started mass mailing accounts or the CEO received...
Quickly fix Exchange 2019 error when adding the Reset-Password option in the EAC.
In my lab I was busy testing out the Reset Password feature which requires that you modify the Organization Management Role and add the role because it is not enabled by default. However, this was not a straight forward task. The Exchange Admin Center (EAC) presented...
Quickly fix Exchange 2019 error: You aren’t authorized to perform the search
When you run Message Tracking in Exchange Server 2019, if you are part of the "Organization Management" Role Group, you should technically be able to perform searches. I was busy testing a script in my lab and could not perform a search on my own mailbox, this was the...
Exchange 2019:- CVE-2023-23397 Exploit (Affecting the Outlook Thick Client)
In my Exchange 2019 lab, I tested out this exploit and it works which is scary. The POC listed Outlook 2013 and 2016 but it also worked for me on Outlook 2019. If you want to read about this POC, head over to GitHub here:...
Solve Exchange 2019 SMTP error by quickly updating your DNS.
In one of my lab servers, I was busy working on a project and email would just not send. I kept on getting the error below from the consoles output: Error with SMTP server... (451, b'4.7.0 Temporary server error. Please try again later. PRX2') This error is generic...
Secure Exchange 2019 OWA with a Google Captcha option.
In one of my recent blog posts, we covered brute forcing of the OWA page in Exchange 2019, this also applies to Exchange 2016 and Exchange 2013. If an attacker successfully gains access, they might access an account that has elevated privileges or given enough time,...
Exchange 2019:- Get the Version with Product Name in PowerShell
If you are an Exchange Admin, you may have inherited Exchange Servers and are not sure what version you are running or you are simply managing Exchange but need to check Control Panel for installed updates to see what version you are on. If you have a few hundred or...
Exchange 2019:- Finding hidden credentials after obtaining a shell
Many admins save credentials in text, log, and other format files on servers, this can be a once off thing where they are troubleshooting something or they saved it there, thinking it is in a safe place and because nobody has access to servers generally, only...
Exchange 2019:- Running BurpSuite against your server to identify potential issues
BurpSuite has a scanner builtin that allows you to scan a URL or URLs and this will give you an output of what is vulnerabilities or misconfigurations are set. A simple thing may be the SSL certificate on your Exchange server, while you may think this is not...
Exchange 2019:- ProxyToken Exploit
In three of my previous blog posts, we looked at exploiting unpatched/vulnerable Exchange servers with "ProxyLogon", "ProxyShell" and "ProxyNotShell". As the exploit lists keep growing, we will look at the "ProxyToken" exploit. One of my many Exchange 2019 lab servers...