CVE-2017-12093

MEDIUMCVSS 5.3/10EPSS 6.21%

Last modified

CVE-2017-12093 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. EPSS estimates a 6.21% chance of exploitation in the next 30 days.

Description

An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability
6.21%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RockwellautomationMicrologix 1400 B Firmware<= 21.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-12093?
An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.
How severe is CVE-2017-12093?
CVE-2017-12093 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 6.21% probability of exploitation in the next 30 days.
How do I fix CVE-2017-12093?
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-2017-12093?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST