Advisory Details

May 1st, 2023

Delta Electronics DIAScreen DPA File Parsing Buffer Overflow Remote Code Execution Vulnerability

ZDI-23-518
ZDI-CAN-19441

CVE ID CVE-2023-0251
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Delta Electronics
AFFECTED PRODUCTS DIAScreen
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Delta Electronics DIAScreen. 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 DPA 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 buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Delta Electronics has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/news-events/ics-advisories/icsa-23-033-01
DISCLOSURE TIMELINE
  • 2022-11-10 - Vulnerability reported to vendor
  • 2023-05-01 - Coordinated public release of advisory
CREDIT YuLin Sung of Trend Micro Zero Day Initiative
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