Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability
CVE-2023-27334

7.5HIGH

Key Information:

Vendor

Softing

Status
Edgeconnector Siemens
Vendor
CVE Published:
3 May 2024

What is CVE-2023-27334?

The Softing edgeConnector Siemens is impacted by a vulnerability that allows remote attackers to trigger a denial-of-service condition. This vulnerability arises from the improper handling of OPC UA ConditionRefresh requests, wherein an attacker can send a barrage of requests to exhaust system resources. This exploitation does not require authentication, making it particularly concerning for affected installations. Organizations utilizing this product are advised to monitor for unusual request patterns and apply any provided security updates to mitigate potential disruptions.

Affected Version(s)

edgeConnector Siemens 3.40

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1054/
x_research-advisory
https://industrial.softing.com/fileadmin/psirt/downloads/...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

CVSS V3.0

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.