CVE-2017-7924

Description

An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.

References

Link	Tags
http://www.securityfocus.com/bid/99622	vdb entry third party advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03	us government resource third party advisory mitigation

Frequently Asked Questions

What is the severity of CVE-2017-7924?: CVE-2017-7924 has been scored as a high severity vulnerability.
How to fix CVE-2017-7924?: To fix CVE-2017-7924, 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-2017-7924 being actively exploited in the wild?: It is possible that CVE-2017-7924 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7924?: CVE-2017-7924 affects n/a Rockwell Automation MicroLogix 1100 Controllers.

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Description

Category

CWE-20 – Improper Input Validation

References

Frequently Asked Questions