Advisory Details

June 30th, 2022

Advantech iView findCfgDeviceListDetailsExport filename Directory Traversal Remote Code Execution Vulnerability

ZDI-22-932
ZDI-CAN-16702

CVE ID CVE-2022-2139
CVSS SCORE 9.8, (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Advantech
AFFECTED PRODUCTS iView
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech iView. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the NetworkServlet endpoint, which listens on TCP port 8080 by default. When parsing the filename element of the findCfgDeviceListDetailsExport action, 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 SYSTEM.

ADDITIONAL DETAILS Advantech has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-03
DISCLOSURE TIMELINE
  • 2022-03-09 - Vulnerability reported to vendor
  • 2022-06-30 - Coordinated public release of advisory
CREDIT @rgod777
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