Advisory Details

September 15th, 2021

Schneider Electric Struxureware Data Center Expert Directory Traversal Remote Code Execution Vulnerability

ZDI-21-1071
ZDI-CAN-13077

CVE ID CVE-2021-22794
CVSS SCORE 8.8, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Schneider Electric
AFFECTED PRODUCTS Struxureware Data Center Expert
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric Struxureware Data Center Expert. Authentication is required to exploit this vulnerability.

The specific flaw exists within the handling of firmware updates. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of root.

ADDITIONAL DETAILS Schneider Electric has issued an update to correct this vulnerability. More details can be found at:
https://us-cert.cisa.gov/ics/advisories/icsa-21-257-03
DISCLOSURE TIMELINE
  • 2021-04-14 - Vulnerability reported to vendor
  • 2021-09-15 - Coordinated public release of advisory
CREDIT David Yesland
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