CVE-2017-16740 Memory corruption in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers
A stack-based buffer overflow in Rockwell Automation MicroLogix 1400 controllers allows remote attackers to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-16740?
CVE-2017-16740 is a critical memory corruption vulnerability in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, published on 9 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.
Which versions are affected by CVE-2017-16740?
It affects 6 products.
Products include Rockwellautomation 1766-L32awa Firmware, Rockwellautomation 1766-L32awaa Firmware, Rockwellautomation 1766-L32bwa Firmware, Rockwellautomation 1766-L32bwaa Firmware, Rockwellautomation 1766-L32bxb Firmware, Rockwellautomation 1766-L32bxba Firmware.
How do I fix CVE-2017-16740?
No fix has been published for CVE-2017-16740 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-16740 being exploited?
There is no known exploitation of CVE-2017-16740 in the wild and no public exploit code.
Sources
Also known as GHSA-f8m9-fwqj-74hf.