cryptcat does not encrypt data communications when -e command argument is used

2002-03-03T00:00:00
ID VU:165099
Type cert
Reporter CERT
Modified 2004-02-23T22:05:00

Description

Overview

With certain options used, cryptcat does not encrypt network connections as expected.

Description

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.


Impact

Users may open unencrypted ports on the server with the assumption that any connections to that port will be encrypted by cryptcat.


Solution

The CERT/CC is currently unaware of a practical solution to this problem.


None.


Vendor Information

165099

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Farm9 Unknown

Updated: December 11, 2001

Status

Unknown

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

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.

CVSS Metrics

Group | Score | Vector
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Base | |
Temporal | |
Environmental | |

References

<http://farm9.com/content/Free_Tools/Cryptcat>

Acknowledgements

Thanks to Eric Sheesley for reporting this vulnerability.

This document was written by Shawn Van Ittersum.

Other Information

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