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Fwknop Port Knocking Utility 2.6.4

Fwknop Port Knocking Utility 2.6.4
Posted Nov 18, 2014
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: Added a UDP server mode so that SPA packets can be acquired via UDP directly without having to use libpcap. Replaced all popen() and system() calls with execvpe() with no usage of the environment. Added support for firewalld to the fwknopd daemon on RHEL 7 and CentOS 7.
tags | tool, scanner, vulnerability
systems | unix
SHA-256 | 17d4345d3e61adaa10c443fde75200dc8279ba7180a7f5276fadd5dba3e82f11
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