Vulnerability Protection profile alters APP-ID behavior

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Vulnerability Protection profile alters APP-ID behavior

L3 Networker

Hello everybody,

 

  while writing some articles on our company wiki, I found a strange behavior of the firewall. This is my environment:

 

PA model: PA-820

PAN-OS version: 10.1.8

APP/Threat version: 8653-7756

Decryption: SSL inbound enabled

 

I have a policy that allows access to the wiki with applications ssl and web-browsing. When no vulnerability protection profile is applied, I can access all pages of the wiki without any problem. The applications seen are, obviously, only ssl and web-browsing.

 

If I apply the provided strict vulnerability protection profile, accessing a particular wiki page is denied. The cause is that, when accessing that page, the application is identified as apache-guacamole instead of web-browsing. The wiki page is about installing and configuring Apache Guacamole, but it's not the Guacamole web UI. In the threat log there are no events about any threat detected. If I access the same page in edit mode, the page is not blocked.

 

These are the URLs involved:

 

  • https://my company domain/it/knowledge-base/guacamole/setup (this is blocked when the vulnerability protection profile is applied, app-id sees "apache-guacamole" application instead of web-browsing)
  • https://my company domain/e/it/knowledge-base/guacamole/setup (never blocked)

 

Any idea about the cause of this behavior? It seems to me that the vulnerability protection feature is confusing the APP-ID engine.

1 REPLY 1

Cyber Elite
Cyber Elite

@grenzi,

If you have an account team, I would pass this on to them and have them push it through internal channels. I don't know how well pushing something like this through TAC would actually work. 

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