PT-2022-19888 · Unknown · Opc Ua .Net Standard Stack

Published 2022-06-16 · Updated 2022-06-27 · CVE-2022-29866

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OPC UA .NET Standard Stack version 1.04.368

Description The issue allows a remote attacker to exhaust the memory resources of a server via a crafted request that triggers Uncontrolled Resource Consumption. A malicious client can trigger a stack overflow exception in a server that exposes an HTTPS endpoint. This can lead to a denial-of-service condition.

Recommendations For version 1.04.368, consider restricting access to the server to minimize the risk of exploitation until a patch is available. As a temporary workaround, disabling the TranslateBrowsePathsToNodeId function may help mitigate the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2022-29866

GHSA-6FP8-CXC9-4FR9

ZDI-22-855

Affected Products

Opc Ua .Net Standard Stack

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2022-29866 · Security Note
• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29866.pdf · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-29866 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-22-855 · Security Note
• https://opcfoundation.org/security · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6fp8-cxc9-4fr9 · Vendor Advisory
• https://github.com/OPCFoundation/UA-.NETStandard · Note
• https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-6fp8-cxc9-4fr9 · Note
• https://t.me/cibsecurity/44674 · Telegram Post
• https://t.me/cvenotify/31745 · Telegram Post