Outbound SSL Decryption Capabilities

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Outbound SSL Decryption Capabilities

L1 Bithead

I know outbound SSL decryption can work when a client inside the network is accessing a secure website on the internet.  But can SSL decryption work when a client on the internal network attempts to make a vpn connection to a vpn server using an SSL VPN connection elsewhere on the public internet?  Can SSL decryption intercept that connection and read the contents of the vpn session?  Thanks!

1 accepted solution

Accepted Solutions

Cyber Elite
Cyber Elite

Hi

 

Yes this will work if the vpn session falls under these conditions:

 

- the ssl tunnel must be based on TLS (regular ssl), no ipsec is used

- a client certificate is not required as the firewall is not able to inject a client certificate

 

Tom Piens
PANgurus - Strata specialist; config reviews, policy optimization

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2 REPLIES 2

Cyber Elite
Cyber Elite

Hi

 

Yes this will work if the vpn session falls under these conditions:

 

- the ssl tunnel must be based on TLS (regular ssl), no ipsec is used

- a client certificate is not required as the firewall is not able to inject a client certificate

 

Tom Piens
PANgurus - Strata specialist; config reviews, policy optimization

OK thanks - if both firewalls (the one doing the outbound SSL decryption) and the one on the internet (running the VPN server) were both Palo Alto's - could the one on the internet be configured to require a client certificate, and so prevent outbound SSL decryption from working?

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