Schneider Electric Struxureware Data Center Expert Command Injection Remote Code Execution Vulnerability

September 15th, 2021
ZDI-21-1072 ZDI-CAN-13553

CVE ID

CVE-2021-22795

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 testRepository method. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. 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

  • 2021-04-30 - Vulnerability reported to vendor
  • 2021-09-15 - Coordinated public release of advisory

Credit

David Yesland

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