Advisory Details

April 14th, 2023

Schneider Electric APC Easy UPS Online SocketService Missing Authentication Denial-of-Service Vulnerability

ZDI-23-443
ZDI-CAN-19268

CVE ID CVE-2023-29413
CVSS SCORE 7.5, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AFFECTED VENDORS Schneider Electric
AFFECTED PRODUCTS APC Easy UPS Online
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Schneider Electric APC Easy UPS Online. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the SocketService module, which listens on UDP port 41222 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

ADDITIONAL DETAILS Schneider Electric has issued an update to correct this vulnerability. More details can be found at:
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-101-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-101-04.pdf
DISCLOSURE TIMELINE
  • 2022-11-30 - Vulnerability reported to vendor
  • 2023-04-14 - Coordinated public release of advisory
CREDIT Esjayy (@esj4y)
BACK TO ADVISORIES