Advisory Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Industrial Automation DOPSoft. 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 XLS files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

03/12/20 - ZDI reported the vulnerabilities to ICS-CERT
03/12/20 - ICS-CERT confirmed receipt of the reports
07/12/21 - ZDI requested an update
07/23/21 - ICS-CERT requested an extension
07/23/21 - ZDI notified ICS-CERT of the intention to publish these reports as 0-day advisories on 08/03/21

• 2021-03-12 - Vulnerability reported to vendor
• 2021-08-09 - Coordinated public release of advisory