CVE-2024-29035: Umbraco.Cms.Core Blind SSRF Leads To Port Vulnerability

MODERATE
Advisory Identifier: GHSA-74p6-39f2-23v3
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CVSS 4.1
CWE-918
Published
Advisory Summary

CVE-2024-29035 is a MODERATE (CVSS 4.1) blind ssrf leads to port vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Umbraco.Cms.Core libraries in the NuGet ecosystem. The issue involves blind ssrf leads to port scan by using webhooks. Remediation is available by upgrading affected packages to version 13.1.1.

CVE-2024-29035 at a Glance

CVE Identifier CVE-2024-29035
GHSA Identifier GHSA-74p6-39f2-23v3
Severity MODERATE
CVSS v3.1 Base Score 4.1
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Umbraco.Cms.Core
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 4.1

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

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

How to Fix CVE-2024-29035

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

Umbraco.Cms.Core fixed: 13.1.1 
Upgrade Umbraco.Cms.Core to 13.1.1
Umbraco.Cms.Web.BackOffice fixed: 13.1.1 
Upgrade Umbraco.Cms.Web.BackOffice to 13.1.1
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 Umbraco.Cms.Core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-29035, inspect your project dependencies for Umbraco.Cms.Core:

inspect dependencies for Umbraco.Cms.Core

Analyze the terminal output to locate any version of Umbraco.Cms.Core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 13.1.1), 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-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Umbraco.Cms.Core, 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

### Impact Failing webhooks logs are available when solution is not in debug mode. Those logs can contain information that is critical. ### Affected Versions Umbraco versions 13.0.0 - 13.1.1 ### Patches 13.1.1 ### Workarounds Disabling webhooks functionality.

CVE-2024-29035 Affected Umbraco.Cms.Core Versions

2 component(s)
Fixed Versions:
13.1.1
Product / Package Ecosystem Affected Versions Fixed Version
Umbraco.Cms.Core
nuget/Umbraco.Cms.Core
NuGet
≥ 13.0.0
< 13.1.1
13.1.1
Umbraco.Cms.Web.BackOffice
nuget/Umbraco.Cms.Web.BackOffice
NuGet
≥ 13.0.0
< 13.1.1
13.1.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-74p6-39f2-23v3
NVD — CVE-2024-29035 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-29035
Security Fix Commit FIX COMMIT
https://github.com/umbraco/Umbraco-CMS/commit/6b8067815c02ae43161966a8075a3585e1bc4de0
Umbraco.Cms.Core Source Repository REPOSITORY
https://github.com/umbraco/Umbraco-CMS

Frequently Asked Questions

What is CVE-2024-29035?
CVE-2024-29035 is a security vulnerability in Umbraco.Cms.Core involving Blind SSRF Leads to Port Scan by using Webhooks under CWE-918: Server-Side Request Forgery (SSRF).
Which Umbraco.Cms.Core versions are affected?
Affected versions include releases prior to 13.1.1 across affected packages: Umbraco.Cms.Core, Umbraco.Cms.Web.BackOffice.
What version fixes CVE-2024-29035?
Upgrading to 13.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Umbraco.Cms.Core affected?
Yes, Umbraco.Cms.Core is affected in releases prior to 13.1.1. Upgrade your dependency to 13.1.1 or later.
Is Umbraco.Cms.Web.BackOffice affected?
Yes, Umbraco.Cms.Web.BackOffice is affected in releases prior to 13.1.1. Upgrade your dependency to 13.1.1 or later.
What is the CVSS score of CVE-2024-29035?
CVE-2024-29035 has a CVSS v3.1 base score of 4.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N.
What CWE is associated with CVE-2024-29035?
CVE-2024-29035 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check NuGet dependencies for CVE-2024-29035?
Run the dependency tree command: 'inspect dependencies for Umbraco.Cms.Core'. 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-74p6-39f2-23v3",
  "modified" : "2025-02-12T18:19:46Z",
  "published" : "2024-04-17T18:20:28Z",
  "aliases" : [ "CVE-2024-29035" ],
  "summary" : "Blind SSRF Leads to Port Scan by using Webhooks",
  "details" : "### Impact\nFailing webhooks logs are available when solution is not in debug mode. Those logs can contain information that is critical.\n \n### Affected Versions\nUmbraco versions 13.0.0 - 13.1.1\n\n### Patches\n13.1.1\n\n### Workarounds\nDisabling webhooks functionality.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Umbraco.Cms.Core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0"
      }, {
        "fixed" : "13.1.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Umbraco.Cms.Web.BackOffice"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.0.0"
      }, {
        "fixed" : "13.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-74p6-39f2-23v3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-29035"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/umbraco/Umbraco-CMS/commit/6b8067815c02ae43161966a8075a3585e1bc4de0"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/umbraco/Umbraco-CMS"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-17T18:20:28Z",
    "nvd_published_at" : "2024-04-17T15:15:07Z"
  }
}