Beck GmbH IPC@Chip TelnetD vulnerable to brute-force password attack

Overview

There is a vulnerability in the Beck IPC@CHIP that may allow an attacker to gain access to the device.

Description

The Beck IPC@CHIP is a single chip embedded webserver. This device contains a telnet server that “leaks information”. That is, when an attacker connects to the telnet daemon and enters a valid username, the telnet daemon will prompt the user with “Password”. However, if the attacker supplies the telnet daemon with an invalid account name, the device will respond with “User Unknown”. Additionally, the telnet daemon permits unlimited login attempts and it isn’t counting or logging any bad passwords. Given this, an attacker could make use of a brute-force password attack and gain entry to the device.

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Impact

An attacker can connect to the telnet service and make use of a brute-force password attack and perhaps gain entry to the device.

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Solution

Obtain a patch from the vendor.

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Vendor Information

198979

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Beck GmbH __ Affected

Notified: May 21, 2001 Updated: September 26, 2001

Status

Affected

Vendor Statement

Please see <http://cert.uni-stuttgart.de/archive/bugtraq/2001/06/msg00010.html&gt;

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](<mailto:[email protected]?Subject=VU%23198979 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://sentry-labs.com/files/ipc0101052101eng.txt&gt;
• <http://cert.uni-stuttgart.de/archive/bugtraq/2001/06/msg00010.html&gt;
• <http://www.securityfocus.com/bid/2773&gt;

Acknowledgements

This vulnerability was discovered by Sentry Research Labs.

This document was written by Ian A. Finlay.

Other Information

CVE IDs:	CVE-2001-1338
Severity Metric:	3.52 Date Public: