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Fwknop Port Knocking Utility 2.5

Fwknop Port Knocking Utility 2.5
Posted Jul 22, 2013
Authored by Michael Rash | Site cipherdyne.org

fwknop implements an authorization scheme that requires only a single encrypted packet to communicate various pieces of information, including desired access through a Netfilter policy and/or specific commands to execute on the target system. The main application of this program is to protect services such as SSH with an additional layer of security in order to make the exploitation of vulnerabilities much more difficult. The authorization server works by passively monitoring authorization packets via libpcap.

Changes: This release added support for HMAC SHA-256 authenticated encryption in the encrypt-then-authenticate model. Many bugs discovered by the Coverity static analyzer were fixed. OpenSSL compatibility tests were added to the test suite. Client stanza saving ability was added for the ~/.fwknoprc file, simplifying fwknop client usage. The ability to automatically generate both Rijndael and HMAC keys with --key-gen was added.
tags | tool, scanner, vulnerability
systems | unix
SHA-256 | ebf0f5a55992e516fa44063993cbcc51bb9555cef769ac9ab5d8be77a8df99dc
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