Advisory Details

October 17th, 2018

OMRON CX-Supervisor SCS File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability

ZDI-18-1288
ZDI-CAN-6404

CVE ID CVE-2018-17907
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS OMRON
AFFECTED PRODUCTS CX-Supervisor
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 handling of SCS files. By manipulating a document's elements, an attacker can trigger a read past the end of an allocated array. 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-18-290-01
DISCLOSURE TIMELINE
  • 2018-06-22 - Vulnerability reported to vendor
  • 2018-10-17 - Coordinated public release of advisory
  • 2018-10-17 - Advisory Updated
CREDIT b0nd @garage4hackers
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