We ran pentest tools to look for flaws on our own server — should we trust the results and panic?

I've been in this industry for years, and nobody has ever run an automated scanner and not seen dozens of critical flaws on their screen. These tools are designed to scare the developer and prepare you for the worst-case scenario. Stay calm, and explain to your boss that this is just a preliminary check and not every warning represents real danger.

A quick filter you can apply right away: Run a port scan on your public IP. Don't prioritize warnings for any service that isn't reachable from the internet. Only look into open web ports or VPN gateways if you have any; your list will immediately shrink by ninety percent.

Did you launch the scan from inside the same local network as the server, or from a completely separate external internet connection? If you scanned from the internal network, it might have treated all internal company access as an external attack which inflates the results drastically.

Last month on a similar scan, we got 85 critical warnings on our own server. We went through them one by one over three days; only 2 were actually remotely exploitable, and the other 83 were false alarms triggered by version banners.

automated tools usually just generate noise. hide the version info in your web server response headers and run the exact same scan again; you'll see half the warnings vanish simply because that header is gone.

Believing you've done a pentest just by pressing a button on free tools is a huge misconception. These tools are nothing more than a superficial checklist. A real pentest involves manually testing whether a vulnerability can actually be exploited on the system for privilege escalation or data exfiltration.

Clean up the report following these three steps: 1) Weed out services that aren't exposed externally, 2) Check if public exploit code is widely available online for the remaining vulnerabilities, 3) Turn off version banners and update your OS security patches.

Correction: I misremembered the figure, it was a bit lower.

I was thinking of running a similar scan myself but what does false positive mean exactly? btw like is the tool actually wrong when it says there's a flaw why would it flag a vulnerability that doesn't exist?

quick summary for newcomers: The biggest time-waster for us was not knowing who had the final say.

Following. Just because everyone does it doesn't mean it's right.

If you post the result here, it will help others too.

I went through the same thing two years ago. Most time waste accumulates in tasks waiting for approval.

This is my opinion, I'm not claiming it's absolute truth.

Thanks, that was the answer I was looking for. Processes without records never improve, because you don't know what to fix.

I'm also curious if anyone does it differently.

timely topic.

I'm writing this so you don't make the same mistake. Having backups accessible on the same network and with the same identity makes them part of the target.

If the notification path is long, notifications don't arrive; missing notifications mean delayed incident detection. Of course, it varies if your situation is different.

My perspective changed after experiencing that. Taking measures without an inventory leaves doors you haven't seen open.

Hope this helps.

Good call starting this thread.

The discussion got scattered, let me summarize. People defend habits, not processes. Resistance comes from there.

This is my opinion, I'm not claiming it's absolute truth.

Let me write how it's done in practice. If you get three different answers on a topic, the question was asked wrong.

If you don't write this down from the start, it leads to arguments later. Proven by experience.