With certain options used, cryptcat does not encrypt network connections as expected.
Cryptcat is an enhanced version of netcat that adds twofish encryption.
If cryptcat is started in listen (server) mode binding a shell to a network port, cryptcat fails to enable encryption. Without encryption enabled on the server, cryptcat clients will not be able to connect. Furthermore, netcat clients can connect to the server port and communicate without encryption.
Users may open unencrypted ports on the server with the assumption that any connections to that port will be encrypted by cryptcat.
The CERT/CC is currently unaware of a practical solution to this problem.
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Updated: December 11, 2001
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Group | Score | Vector
Base | |
Temporal | |
Environmental | |
Thanks to Eric Sheesley for reporting this vulnerability.
This document was written by Shawn Van Ittersum.
CVE IDs: | None
Severity Metric: | 0.09
Date Public: | 2002-03-02
Date First Published: | 2002-03-03
Date Last Updated: | 2004-02-23 22:05 UTC
Document Revision: | 13