CVE-2022-37012 — HIGH (7.5)

Vulnerability Description

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OpcUa_SecureListener_ProcessSessionCallRequest method. A crafted OPC UA message can force the server to incorrectly update a reference count. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-16927.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Unified-Automation	Opc Ua C\+\+ Demo Server	1.7.6.537

Related Weaknesses (CWE)

CWE-911

References

https://documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txtRelease Notes
https://www.zerodayinitiative.com/advisories/ZDI-22-1030/Third Party AdvisoryVDB Entry
https://documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txtRelease Notes
https://www.zerodayinitiative.com/advisories/ZDI-22-1030/Third Party AdvisoryVDB Entry

FAQ

What is CVE-2022-37012?

CVE-2022-37012 is a vulnerability with a CVSS score of 7.5 (HIGH). This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to e...

How severe is CVE-2022-37012?

CVE-2022-37012 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-37012?

Check the references section above for vendor advisories and patch information. Affected products include: Unified-Automation Opc Ua C\+\+ Demo Server.