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CVE-2017-14470

UnknownEPSS 37.32%

Last modified

CVE-2017-14470 is a vulnerability of currently unknown severity. An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. EPSS estimates a 37.32% chance of exploitation in the next 30 days.

Description

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG or RUN Description: The value 0xffffffff is considered NaN for the Float data type. When a float is set to this value and used in the PLC, a fault is triggered. NOTE: This is not possible through RSLogix.

Metrics

EPSS Probability
37.32%

98.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
RockwellautomationMicrologix 1400 B Firmware<= 21.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-14470?
An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG or RUN Description: The value 0xffffffff is considered NaN for the Float data type. When a float is set to this value and used in the PLC, a fault is triggered. NOTE: This is not possible through RSLogix.
How severe is CVE-2017-14470?
Severity scoring for CVE-2017-14470 is pending analysis. The EPSS model estimates a 37.32% probability of exploitation in the next 30 days.
How do I fix CVE-2017-14470?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-14470?

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Source: NVD / NIST