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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Rockwell Automation MicroLogix 1100 Controllers | Rockwell Automation MicroLogix 1100 Controllers | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
DoS Exploitation of Allen-Bradley's Legacy Protocol (PCCC)
auxiliary/dos/scada/allen_bradley_pccc
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- ICSA-17-138-03 Rockwell Automation MicroLogix 1100 Controllers CISA ICS & IT advisories · Jul 18, 2017