Advisory Details

August 5th, 2020

Delta Industrial Automation CNCSoft ScreenEditor DPB File Parsing Uninitialized Pointer Dereference Remote Code Execution Vulnerability

ZDI-20-948
ZDI-CAN-10893

CVE ID CVE-2020-16203
CVSS SCORE 7.8, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Delta Industrial Automation
AFFECTED PRODUCTS CNCSoft ScreenEditor
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Industrial Automation CNCSoft ScreenEditor. 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 DPB files. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Delta Industrial Automation has issued an update to correct this vulnerability. More details can be found at:
https://us-cert.cisa.gov/ics/advisories/icsa-20-217-01
DISCLOSURE TIMELINE
  • 2020-04-23 - Vulnerability reported to vendor
  • 2020-08-05 - Coordinated public release of advisory
CREDIT Anonymous
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