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Critical vulnerability in Fortinet products

https://www.fortiguard.com/psirt/FG-IR-22-398

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

Affected Products

FortiOS version 7.2.0 through 7.2.2
FortiOS version 7.0.0 through 7.0.8
FortiOS version 6.4.0 through 6.4.10
FortiOS version 6.2.0 through 6.2.11
FortiOS-6K7K version 7.0.0 through 7.0.7
FortiOS-6K7K version 6.4.0 through 6.4.9
FortiOS-6K7K version 6.2.0 through 6.2.11
FortiOS-6K7K version 6.0.0 through 6.0.14

Posted on No Comments on How does the VPN work? – A question from the telegram.

How does the VPN work? – A question from the telegram.

My today’s answer to the question from the telegram – maybe someone will need such a summary of information about VPN 😀

The VPN set itself encrypts the data, but what servers do I connect to, etc., it still goes to the ISP?

  • No matter how the VPN is set, whether it’s your own or bought, it should encrypt the data. If you set it yourself you know how it was configured and you know who has the encryption key – in case of purchased VPN not exactly.
  • As for the ISP – you have to get out of that VPN somewhere, so at the point of the appointment, when traffic from a VPN starts to come out of the world with a “normal” connection yes – this or that ISP sees what comes out of you unencrypted + DNS queries.

Read more How does the VPN work? – A question from the telegram.