Improper Input Validation in Rockwell Automation MicroLogix 1100 Controllers
CVE-2017-7924

7.5HIGH

Key Information:

Vendor

Rockwellautomation

Status
Rockwell Automation Micrologix 1100 Controllers
Vendor
CVE Published:
20 September 2017

What is CVE-2017-7924?

An Improper Input Validation vulnerability has been identified in Rockwell Automation's MicroLogix 1100 controllers. This security flaw allows a remote and unauthenticated attacker to exploit the affected devices by sending a specially crafted Programmable Controller Communication Commands (PCCC) packet. The exploit can potentially lead to a denial-of-service condition, affecting the controller's operations and availability.

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Affected Version(s)

Rockwell Automation MicroLogix 1100 Controllers Rockwell Automation MicroLogix 1100 Controllers

References

http://www.securityfocus.com/bid/99622
vdb-entryx_refsource_BID
https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03
x_refsource_MISC

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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