Advisory Details

January 18th, 2023

Delta Electronics InfraSuite Device Master CtrlLayerNWCmd_FileOperation Directory Traversal Remote Code Execution Vulnerability

ZDI-23-084
ZDI-CAN-19416

CVE ID CVE-2022-41657
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 execute arbitrary code on affected installations of Delta Electronics InfraSuite Device Master. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within CtrlLayerNWCmd_FileOperation function. When parsing the fileName element, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of an administrator.

ADDITIONAL DETAILS Delta Electronics has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/uscert/ics/advisories/icsa-22-298-07
DISCLOSURE TIMELINE
  • 2022-11-10 - Vulnerability reported to vendor
  • 2023-01-18 - Coordinated public release of advisory
CREDIT Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
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