I'm attempting to build a pattern match for a custom vulnerability. Here are the criteria:
I had the following regex built, but the PA doesn't like it for some reason.
It gives me some invalid character internal error. Any thoughts?
I'm trying to create the pattern to reset the connection if the connection comes from Internet Explorer.
I took PCAP with wireshark and user-agent shows as : "Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko" (there is \r\n at the end but I think its wireshark? )
I copied my text to RegExr; and did my regular expression to match.
it highlights the text, meaning It is a valid expression, Palo Alto takes it, and while I was troubleshooting I even got some hits but internet explorer works as normal.
Can you tell if this is even possible?
I know this is an old thread but anyone knows why this particular string is not accepted as a pattern for SNI with ssl client hello as context? It keeps telling me it has to be at least 7 byte long.
All the above cannot go through..
i randomly try youtube.com, singtel.com, asiaone.com, all is ok.
Hope somone can help! Thanks!
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