Delta Electronics InfraSuite Device Master modifyusergroup Improper Access Control Privilege Escalation Vulnerability

July 10th, 2023
ZDI-23-905 ZDI-CAN-20911

CVE ID

CVE-2023-30765

CVSS Score

8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Delta Electronics

Affected Products

InfraSuite Device Master

Vulnerability Details

This vulnerability allows remote attackers to escalate privileges on affected installations of Delta Electronics InfraSuite Device Master. Authentication is required to exploit this vulnerability.

The specific flaw exists within the modifyusergroup endpoint. The issue results from improper access control. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user.

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-23-180-01

Disclosure Timeline

  • 2023-05-03 - Vulnerability reported to vendor
  • 2023-07-10 - Coordinated public release of advisory

Credit

Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative

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