Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability
CVE-2023-27336

7.5HIGH

Key Information:

Vendor

Softing

Status
Edgeconnector Siemens
Vendor
CVE Published:
3 May 2024

What is CVE-2023-27336?

The vulnerability in Softing edgeConnector Siemens OPC UA Server arises from a flaw in the handling of OPC client certificates, where a null pointer dereference can be exploited by remote attackers. This condition allows attackers to induce a denial-of-service scenario on affected systems without the need for authentication. Proper safeguards are necessary to mitigate the risks posed by this issue.

Affected Version(s)

edgeConnector Siemens 3.40

References

https://www.zerodayinitiative.com/advisories/ZDI-23-1065/
x_research-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

.