CVE Vulnerabilities

CVE-2017-7903

Weak Password Requirements

Published: Jun 30, 2017 | Modified: Apr 20, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

A Weak Password Requirements issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. The affected products use a numeric password with a small maximum character size for the password.

Weakness

The product does not require that users should have strong passwords.

Affected Software

Name Vendor Start Version End Version
1763-l16awa_series_a Rockwellautomation * 16.000 (including)
1763-l16awa_series_b Rockwellautomation * 16.000 (including)
1763-l16bbb_series_a Rockwellautomation * 16.000 (including)
1763-l16bbb_series_b Rockwellautomation * 16.000 (including)
1763-l16bwa_series_a Rockwellautomation * 16.000 (including)
1763-l16bwa_series_b Rockwellautomation * 16.000 (including)
1763-l16dwd_series_a Rockwellautomation * 16.000 (including)
1763-l16dwd_series_b Rockwellautomation * 16.000 (including)

Potential Mitigations

  • A product’s design should require adherance to an appropriate password policy. Specific password requirements depend strongly on contextual factors, but it is recommended to contain the following attributes:

  • Depending on the threat model, the password policy may include several additional attributes.

  • See NIST 800-63B [REF-1053] for further information on password requirements.

References