CVE-2023-27336
Assigner: zdi
Published: 2024-05-03T01:55:58.472Z
State: PUBLISHED
title: Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
descriptions: value: Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of OPC client certificates. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20508.
affected: vendor: Softing
product: edgeConnector Siemens
versions: version: 3.40
status: affected
defaultStatus: unknown
problemTypes: descriptions: cweId: CWE-476
description: CWE-476: NULL Pointer Dereference
type: CWE
dateAssigned: 2023-02-28T12:05:53.960-06:00
datePublic: 2023-08-09T13:05:39.861-05:00
source: value: Team ECQ
metrics: format: CVSS
cvssV3_0: version: 3.0
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
baseScore: 7.5
baseSeverity: HIGH