CVE-2017-7898

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.14% Top 25%
Third-Party Advisory us-cert.gov
Affected: n/a Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1038546 vdb entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 us government resource third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-7898?
CVE-2017-7898 has been scored as a critical severity vulnerability.
How to fix CVE-2017-7898?
To fix CVE-2017-7898, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7898 being actively exploited in the wild?
It is possible that CVE-2017-7898 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7898?
CVE-2017-7898 affects n/a Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400.
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