CVE-2024-45526: OPCFoundation.NetStandard.Opc.Ua Security Update For The OPC Vulnerability

MODERATE
Advisory Identifier: GHSA-7vfh-cqpc-4267
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CVSS 5.3
CWE-770
Published
Advisory Summary

CVE-2024-45526 is a MODERATE (CVSS 5.3) security update for the opc vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting OPCFoundation.NetStandard.Opc.Ua libraries in the NuGet ecosystem. The issue involves security update for the opc ua .net standard stack. Remediation is available by upgrading affected packages to version 1.5.374.118.

CVE-2024-45526 at a Glance

CVE Identifier CVE-2024-45526
GHSA Identifier GHSA-7vfh-cqpc-4267
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product OPCFoundation.NetStandard.Opc.Ua
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2024-45526

To remediate this vulnerability, upgrade all affected OPCFoundation.NetStandard.Opc.Ua dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

OPCFoundation.NetStandard.Opc.Ua fixed: 1.5.374.118 
Upgrade OPCFoundation.NetStandard.Opc.Ua to 1.5.374.118
OPCFoundation.NetStandard.Opc.Ua.Core fixed: 1.5.374.118 
Upgrade OPCFoundation.NetStandard.Opc.Ua.Core to 1.5.374.118
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for OPCFoundation.NetStandard.Opc.Ua

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-45526, inspect your project dependencies for OPCFoundation.NetStandard.Opc.Ua:

inspect dependencies for OPCFoundation.NetStandard.Opc.Ua

Analyze the terminal output to locate any version of OPCFoundation.NetStandard.Opc.Ua in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.374.118), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In OPCFoundation.NetStandard.Opc.Ua, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

This security update resolves a vulnerability in the OPC UA .NET Standard Stack that allows an unauthorized attacker to trigger a gradual degradation in performance.

CVE-2024-45526 Affected OPCFoundation.NetStandard.Opc.Ua Versions

2 component(s)
Fixed Versions:
1.5.374.118
Product / Package Ecosystem Affected Versions Fixed Version
OPCFoundation.NetStandard.Opc.Ua
nuget/OPCFoundation.NetStandard.Opc.Ua
NuGet
< 1.5.374.118
1.5.374.118
OPCFoundation.NetStandard.Opc.Ua.Core
nuget/OPCFoundation.NetStandard.Opc.Ua.Core
NuGet
< 1.5.374.118
1.5.374.118

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-7vfh-cqpc-4267
NVD — CVE-2024-45526 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-45526
OPCFoundation.NetStandard.Opc.Ua Security Information SECURITY
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-45526.pdf
OPCFoundation.NetStandard.Opc.Ua Source Repository REPOSITORY
https://github.com/OPCFoundation/UA-.NETStandard

Frequently Asked Questions

What is CVE-2024-45526?
CVE-2024-45526 is a security vulnerability in OPCFoundation.NetStandard.Opc.Ua involving Security Update for the OPC UA .NET Standard Stack under CWE-770: Allocation of Resources Without Limits or Throttling.
Which OPCFoundation.NetStandard.Opc.Ua versions are affected?
Affected versions include releases prior to 1.5.374.118 across affected packages: OPCFoundation.NetStandard.Opc.Ua, OPCFoundation.NetStandard.Opc.Ua.Core.
What version fixes CVE-2024-45526?
Upgrading to 1.5.374.118 (or the latest patched release for your respective branch) resolves the vulnerability.
Is OPCFoundation.NetStandard.Opc.Ua affected?
Yes, OPCFoundation.NetStandard.Opc.Ua is affected in releases prior to 1.5.374.118. Upgrade your dependency to 1.5.374.118 or later.
Is OPCFoundation.NetStandard.Opc.Ua.Core affected?
Yes, OPCFoundation.NetStandard.Opc.Ua.Core is affected in releases prior to 1.5.374.118. Upgrade your dependency to 1.5.374.118 or later.
What is the CVSS score of CVE-2024-45526?
CVE-2024-45526 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2024-45526?
CVE-2024-45526 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check NuGet dependencies for CVE-2024-45526?
Run the dependency tree command: 'inspect dependencies for OPCFoundation.NetStandard.Opc.Ua'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-7vfh-cqpc-4267",
  "modified" : "2024-10-22T21:44:38Z",
  "published" : "2024-10-18T20:05:28Z",
  "aliases" : [ "CVE-2024-45526" ],
  "summary" : "Security Update for the OPC UA .NET Standard Stack",
  "details" : "This security update resolves a vulnerability in the OPC UA .NET Standard Stack that allows an\nunauthorized attacker to trigger a gradual degradation in performance.\n\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "OPCFoundation.NetStandard.Opc.Ua"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.374.118"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "OPCFoundation.NetStandard.Opc.Ua.Core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.5.374.118"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-7vfh-cqpc-4267"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-45526"
  }, {
    "type" : "WEB",
    "url" : "https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-45526.pdf"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OPCFoundation/UA-.NETStandard"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-10-18T20:05:28Z",
    "nvd_published_at" : "2024-10-22T21:15:06Z"
  }
}