Advisory Details

June 16th, 2022

(Pwn2Own) OPC Foundation UA .NET Standard TranslateBrowsePathsToNodeId Resource Exhaustion Denial-of-Service Vulnerability

ZDI-22-855
ZDI-CAN-17197

CVE ID CVE-2022-29866
CVSS SCORE 7.5, (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
AFFECTED VENDORS OPC Foundation
AFFECTED PRODUCTS UA .NET Standard
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the TranslateBrowsePathsToNodeId method. The issue results from the lack of proper validation of user-supplied data, which can result in a memory exhaustion condition. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

ADDITIONAL DETAILS OPC Foundation has issued an update to correct this vulnerability. More details can be found at:
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29866.pdf
DISCLOSURE TIMELINE
  • 2022-05-10 - Vulnerability reported to vendor
  • 2022-06-16 - Coordinated public release of advisory
  • 2022-06-16 - Advisory Updated
CREDIT Uriya Yavnieli, JFrog Security Research Team
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