A security flaw in the SSH protocol has been discovered, allowing adversaries to conduct man-in-the-middle attacks and potentially compromise the authentication process. The impact of the flaw depends on various factors, such as client-server configurations and protocol implementations. Researchers from Germany's Ruhr University Bochum have privately disclosed the details to SSH developers, and patches and mitigations are now available.
In a successful man-in-the-middle attack, the adversary may be able to force SSH clients to use weaker authentication methods and disable some defense mechanisms. It is hard right now to pin down the true realistic impact of the flaw because it all depends on individual client-server configurations, implementations of the protocol, and other variables. SSH is mainly used to connect into remote systems to use or administer them via a command-line interface.
shared this week by Fabian Bäumer, Marcus Brinkmann, and Jörg Schwenk, who are computer scientists at Germany's Ruhr University Bochum. In October, after discovering the vulnerability, they privately disclosed the details to SSH client and server developers to address. Now it's all public with patches and info coming out.As a result of this study's findings, SSH software updates should be making their way to users, and there are mitigations available in the meantim
SSH Security Flaw Man-In-The-Middle Attack Authentication Vulnerability Patches Mitigations
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