Forum Discussion

f5mkuDefault's avatar
Feb 26, 2021

3rd party vulnerability scan

Hi Experts,


I'd like to get some help with another issue.


We have this new 3rd party vendor that will be scanning the webservices hosted in LTM. The Big-IP also runs with ASM.

We tested between 15 virtual servers and only 1 is able to scan successfully.


Is there a setting that we need to perform on the Big-IP level to make the scan successfully work?

Is there a setting at real server level that we also need to adjust?


The virtual server by the way does port forwarding from port 443 to port 80 and there is certificate installed in F5 clientssl.


Hoping someone can advise.


Thank you in advance,

4 Replies

  • What do you mean by "We tested between 15 virtual servers and only 1 is able to scan successfully". How does it fail? This does not sound like an F5 problem - can they get basic access to the service? Is ASM blocking the malicious traffic?

    • f5mkuDefault's avatar
      Icon for Cirrus rankCirrus

      Hi Pete, sorry for late response. We actually tested again focused on 1 specific website and confirmed that the scanner is able to hit the main page of the website. However the scan will stop. Base from the ASM we see some events from scanner to VS hitting some page. It looks like the real server is the one causing some issues. Not too sure if its a permission issue. Any idea what we need to adjust on the real server end?

      • boneyard's avatar
        Icon for MVP rankMVP

        the webservices work fine for users i assume?


        it sounds very much like a scanner issue, if you use it without F5 and or without ASM does it function fine? if not then talk with the scanner people and understand why it "stops".