CVE-2023-27334

2024-05-0302:15:10

CWE-400

[email protected]

web.nvd.nist.gov

cve-2023-27334

remote attackers

denial-of-service

softing edgeconnector

siemens

authentication

opc ua

resource exhaustion

zdi-can-20498

nvd

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.0005 Low

EPSS

Percentile

16.4%

JSON

Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion 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 UA ConditionRefresh requests. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20498.

Affected configurations

Vulners

Node

softingedgeconnectorRange≤3.40

CNA Affected

[
  {
    "vendor": "Softing",
    "product": "edgeConnector Siemens",
    "versions": [
      {
        "version": "3.40",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]