Vulnerability Note VU#278785

DevonIT weak authentication and buffer overflow in /usr/bin/tm-console-bin

Original Release date: 24 Aug 2010 | Last revised: 24 Aug 2010


The DevonIT management tool for thin clients uses a shared secret that is transmitted over the network in the clear. The /usr/bin/tm-console-bin application contains a buffer overflow, which may allow an attacker to execute arbitrary code.


The management tool transmits an unencrypted shared secret over the network to authenticate with clients. This traffic can then be used by an attacker to mimic a thin-manager server and control thin clients.


An attacker able to sniff traffic created by the management tool will be able to compromise the configuration of thin clients. An attacker may be able to exploit a buffer overflow in /usr/bin/tm-console-bin to execute arbitrary code.


We are currently unaware of a practical solution to this problem.

Restrict Access

Implement appropriate firewall rules so clients will only talk to a legitimate management server.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
Devon IT Inc.Affected17 Sep 200910 Aug 2010
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A


  • None


Thanks to Kevin Finisterre for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

  • CVE IDs: Unknown
  • Date Public: 24 Aug 2010
  • Date First Published: 24 Aug 2010
  • Date Last Updated: 24 Aug 2010
  • Severity Metric: 0.03
  • Document Revision: 14


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