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Dallas Semiconductor iButton DS1991 vulnerable to dictionary attack

Vulnerability Note VU#178560

Original Release Date: 2001-05-06 | Last Revised: 2001-06-21

Overview

The Dallas Semiconductor iButton DS1991 is vulnerable to a dictionary attack, allowing an intruder to recover passwords.

Description

The Dallas Semiconductor iButton DS1911 stores 1 kilobyte of data in 3 separate password-protected areas. It includes functionality intended to prevent passwords guessing, but is vulnerable to dictionary attacks. For more information, see the advisory published by @stake Research Labs, available at

http://www.atstake.com/research/advisories/2001/a011801-1.txt

Impact

Intruders can use a dictionary attack to recover passwords.

Solution

Use passwords not found in any dictionary of any language, rewrite your application, or upgrade to the DS1963S.

Vendor Information

178560
Expand all

Dallas Semiconductor

Updated:  May 06, 2001

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

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

Addendum

For more information, see the @stake advisory.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

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

References

Credit

Our thanks to @stake Research Labs for the information contained in their advisory.

This document was written by Shawn V. Hernan.

Other Information

CVE IDs: None
Severity Metric: 8.73
Date Public: 2001-01-18
Date First Published: 2001-05-06
Date Last Updated: 2001-06-21 04:26 UTC
Document Revision: 8

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