OMRON CX-Supervisor SCS Alarm Object Use-After-Free Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of OMRON CX-Supervisor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of SCS project files. When parsing a malformed Alarm object, the process does not properly validate the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process.
Additional Details
OMRON has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-18-072-01
Disclosure Timeline
- 2017-10-24 - Vulnerability reported to vendor
- 2018-03-23 - Coordinated public release of advisory
- 2018-03-23 - Advisory Updated
Credit
rgod
