Advisory Details

October 27th, 2022

Delta Industrial Automation InfraSuite Device Master CtrlLayerNWCmd_FileOperation Directory Traversal Arbitrary File Deletion Vulnerability

ZDI-22-1482
ZDI-CAN-17529

CVE ID CVE-2022-41657
CVSS SCORE 8.2, (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H)
AFFECTED VENDORS Delta Electronics
AFFECTED PRODUCTS InfraSuite Device Master
VULNERABILITY DETAILS

This vulnerability allows remote attackers to delete arbitrary files on affected installations of Delta Industrial Automation InfraSuite Device Master. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the 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 delete files 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
  • 2022-06-06 - Vulnerability reported to vendor
  • 2022-10-27 - Coordinated public release of advisory
CREDIT kimiya
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