Description
The SSL-VPN feature in Fortinet FortiOS before 4.3.13 only checks the first byte of the TLS MAC in finished messages, which makes it easier for remote attackers to spoof encrypted content via a crafted MAC field.
References
- 76065 vdb-entry
- http://www.fortiguard.com/advisory/FG-IR-15-016/
- 1033256 vdb-entry
- GLSA-201508-01 vendor-advisory
- https://vivaldi.net/en-US/blogs/entry/the-poodle-has-friends