Fabian Baeumer, Marcus Brinkmann and Joerg Schwenk discovered that the SSH protocol is prone to a prefix truncation attack, known as the "Terrapin attack". This attack allows a MITM attacker to effect a limited break of the integrity of the early encrypted SSH transport protocol by sending extra messages prior to the commencement of encryption, and deleting an equal number of consecutive messages immediately after encryption starts.
Details can be found at https://terrapin-attack.com/
https://security-tracker.debian.org/tracker/DSA-5601-1
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Details can be found at https://terrapin-attack.com/
https://security-tracker.debian.org/tracker/DSA-5601-1
Continue reading...
