What is the CVSS score of CVE-2017-7898?

CVE-2017-7898 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Is there a patch available for CVE-2017-7898?

Yes, a patch is available for CVE-2017-7898. Update the affected software to the latest version immediately.

1763 L16Awa Series A CVE-2017-7898

CRITICAL

Improper Restriction of Excessive Authentication Attempts (CWE-307)

2017-06-30 ics-cert@hq.dhs.gov

Information Disclosure Rockwell 1763 L16Awa Series A 1763 L16Awa Series B 1763 L16Bbb Series A 1763 L16Bbb Series B 1763 L16Bwa Series A 1763 L16Bwa Series B 1763 L16Dwd Series A 1763 L16Dwd Series B 1766 L32Awa Series A 1766 L32Awa Series B 1766 L32Awaa Series A 1766 L32Awaa Series B 1766 L32Bwa Series A 1766 L32Bwa Series B 1766 L32Bwaa Series A 1766 L32Bwaa Series B 1766 L32Bxb Series A 1766 L32Bxb Series B 1766 L32Bxba Series A 1766 L32Bxba Series B Rockwellautomation

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jun 30, 2017 - 03:29 cve.org

CRITICAL 9.8

DescriptionCVE.org

An Improper Restriction of Excessive Authentication Attempts 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. There are no penalties for repeatedly entering incorrect passwords.

AnalysisAI

An Improper Restriction of Excessive Authentication Attempts issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B,. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-307. An Improper Restriction of Excessive Authentication Attempts 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. There are no penalties for repeatedly entering incorrect passwords. Affected products include: Rockwellautomation 1763-L16Awa Series A, Rockwellautomation 1763-L16Awa Series B, Rockwellautomation 1763-L16Bbb Series A, Rockwellautomation 1763-L16Bbb Series B, Rockwellautomation 1763-L16Bwa Series A. Version information: Version 16.00.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.