CVE-2018-10594 Memory corruption in Delta Industrial Automation COMMGR and accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM 5x0, AHSIM 5x1)
Remote attackers can exploit a stack buffer overflow in Delta COMMGR and PLC Simulators to execute arbitrary code or cause denial of 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-2018-10594?
CVE-2018-10594 is a critical memory corruption vulnerability in ICS-CERT Delta Industrial Automation COMMGR and accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM_5x0, AHSIM_5x1), published on 26 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Delta Industrial Automation COMMGR from Delta Electronics versions 1.08 and prior with accompanying PLC Simulators (DVPSimulator EH2, EH3, ES2, SE, SS2 and AHSIM_5x0, AHSIM_5x1) utilize a fixed-length stack buffer where an unverified length value can be read from the network packets via a specific network port, causing the buffer to be overwritten. This may allow remote code execution, cause the application to crash, or result in a denial-of-service condition in the application server.
Which versions are affected by CVE-2018-10594?
It affects 1 product.
Products include Deltaww Commgr.
How do I fix CVE-2018-10594?
No fix has been published for CVE-2018-10594 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-2018-10594 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-10594 exists.
Public exploit code: 1 Metasploit module and 3 Exploit-DB entries.
Sources
Also known as GHSA-55m9-57p9-8j6r.