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Fwknop Port Knocking Utility 2.6.5
Posted Dec 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 new access.conf variable "DESTINATION" to define the destination address for which an SPA packet will be accepted. The string "ANY" is also accepted if a valid SPA packet should be honored to any destination IP. Bug fix to ensure that proper bounds are enforced when importing digest cache files from previous fwknopd executions.
tags | tool, scanner, vulnerability
systems | unix
SHA-256 | ad431ad8aae28d22666eb7a12646328f564eae8e6cb70fd1d2d6506e44d82ab0

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