OMRON CX-One CXP File Parsing Stack-based Buffer Overflow Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of OMRON CX-One. User interaction is required to exploit this vulnerability in that the target must open a malicious file.
The specific flaw exists within the parsing of CXP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in 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-18-338-01
Disclosure Timeline
- 2018-07-05 - Vulnerability reported to vendor
- 2018-12-10 - Coordinated public release of advisory
Credit
Esteban Ruiz (mr_me) of Source Incite
