CVE-2018-19016 Denial of service in Rockwell Automation EtherNet/IP Web Server Modules 1756-EWEB (includes 1756-EWEBK) Version 5.001 and earlier, and CompactLogix 1768-EWEB Version 2.005 and earlier.
A remote attacker can cause a denial-of-service condition in Rockwell Automation EtherNet/IP Web Server Modules by sending a crafted UDP packet to the SNMP service.
- 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-2018-19016?
CVE-2018-19016 is a high-severity denial of service vulnerability in Rockwell Automation EtherNet/IP Web Server Modules 1756-EWEB (includes 1756-EWEBK) Version 5.001 and earlier, and CompactLogix 1768-EWEB Version 2.005 and earlier., published on 27 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Rockwell Automation EtherNet/IP Web Server Modules 1756-EWEB (includes 1756-EWEBK) Version 5.001 and earlier, and CompactLogix 1768-EWEB Version 2.005 and earlier. A remote attacker could send a crafted UDP packet to the SNMP service causing a denial-of-service condition to occur until the affected product is restarted.
Weakness: CWE-20
Which versions are affected by CVE-2018-19016?
It affects 2 products.
Products include Rockwellautomation Ethernet\/Ip Web Server Module 1756-Eweb, Rockwellautomation Ethernet\/Ip Web Server Module 1768-Eweb.
How do I fix CVE-2018-19016?
No fix has been published for CVE-2018-19016 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-19016 being exploited?
There is no known exploitation of CVE-2018-19016 in the wild and no public exploit code.
Sources
Also known as GHSA-c7x4-832f-v26q.