CVE-2017-7924

HIGH

DoS Exploitation of Allen-Bradley

Title source: metasploit
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-7924. Includes Metasploit module auxiliary/dos/scada/allen_bradley_pccc.

AI-analyzed exploit summary This Metasploit module exploits CVE-2017-7924, a DoS vulnerability in Allen-Bradley MicroLogix 1100 controllers by sending a crafted PCCC packet. It includes session registration, connection establishment, and a malicious payload to trigger the DoS condition.

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.

Exploits (1)

metasploit WORKING POC
rubypoc
https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/dos/scada/allen_bradley_pccc.rb

This Metasploit module exploits CVE-2017-7924, a DoS vulnerability in Allen-Bradley MicroLogix 1100 controllers by sending a crafted PCCC packet. It includes session registration, connection establishment, and a malicious payload to trigger the DoS condition.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Allen-Bradley MicroLogix 1100 controllers (1763-L16BWA, 1763-L16AWA, 1763-L16BBB, 1763-L16DWD) with firmware versions 14.00 to 16.00
No auth needed
Prerequisites: Network access to the target device on port 44818
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/99622
Mitigation, Third Party Advisory, US Government Resource x_refsource_misc
https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03

Scores

CVSS v3 7.5
EPSS 0.2218
EPSS Percentile 97.4%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (5)
n/a/Rockwell Automation MicroLogix 1100 Controllers Rockwell Automation MicroLogix 1100 Controllers
rockwellautomation/1763-l16awa_firmware
rockwellautomation/1763-l16bbb_firmware
rockwellautomation/1763-l16bwa_firmware
rockwellautomation/1763-l16dwd_firmware
Published Sep 20, 2017
Tracked Since Feb 18, 2026