CVE-2022-22690: Umbraco.Cms.Core Umbraco ApplicationURL Overwrite Vulnerability

HIGH
Advisory Identifier: GHSA-jrmq-rv9w-63rv
Share
CVSS 8.6
CWE-444
Published
Advisory Summary

CVE-2022-22690 is a HIGH (CVSS 8.6) umbraco applicationurl overwrite vulnerability (CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')) affecting Umbraco.Cms.Core libraries in the NuGet ecosystem. The issue involves umbraco applicationurl overwrite. Remediation is available by upgrading affected packages to version 9.2.0.

CVE-2022-22690 at a Glance

CVE Identifier CVE-2022-22690
GHSA Identifier GHSA-jrmq-rv9w-63rv
Severity HIGH
CVSS v3.1 Base Score 8.6
CWE Classification CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Affected Product Umbraco.Cms.Core
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 8.6

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:C/C:H/I:N/A:N).

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

How to Fix CVE-2022-22690

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: 9.2.0 
Upgrade Umbraco.Cms.Core to 9.2.0
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-2022-22690, 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 9.2.0), 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-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling'), where the product acts as an intermediary http agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed http requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate 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

Within the Umbraco CMS, a configuration element named "UmbracoApplicationUrl" (or just "ApplicationUrl") is used whenever application code needs to build a URL pointing back to the site. For example, when a user resets their password and the application builds a password reset URL or when the administrator invites users to the site. For Umbraco versions less than 9.2.0, if the Application URL is not specifically configured, the attacker can manipulate this value and store it persistently affecting all users for components where the "UmbracoApplicationUrl" is used. For example, the attacker is able to change the URL users receive when resetting their password so that it points to the attackers server, when the user follows this link the reset token can be intercepted by the attacker resulting in account takeover.

CVE-2022-22690 Affected Umbraco.Cms.Core Versions

1 component(s)
Fixed Versions:
9.2.0
Product / Package Ecosystem Affected Versions Fixed Version
Umbraco.Cms.Core
nuget/Umbraco.Cms.Core
NuGet
< 9.2.0
9.2.0

References

NVD — CVE-2022-22690 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-22690
appcheck-ng.com/umbraco-application... WEB
https://appcheck-ng.com/umbraco-applicationurl-overwrite-persistent-password-reset-poison-cve-2022-22690-cve-2022-22691
Umbraco.Cms.Core Source Repository REPOSITORY
https://github.com/umbraco/Umbraco-CMS

Frequently Asked Questions

What is CVE-2022-22690?
CVE-2022-22690 is a security vulnerability in Umbraco.Cms.Core involving Umbraco ApplicationURL Overwrite under CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling').
Which Umbraco.Cms.Core versions are affected?
Affected versions include releases prior to 9.2.0 across affected packages: Umbraco.Cms.Core.
What version fixes CVE-2022-22690?
Upgrading to 9.2.0 (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 9.2.0. Upgrade your dependency to 9.2.0 or later.
What is the CVSS score of CVE-2022-22690?
CVE-2022-22690 has a CVSS v3.1 base score of 8.6 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
What CWE is associated with CVE-2022-22690?
CVE-2022-22690 is classified under CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') (The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.).
How can I check NuGet dependencies for CVE-2022-22690?
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-jrmq-rv9w-63rv",
  "modified" : "2022-01-19T22:24:06Z",
  "published" : "2022-01-21T23:34:24Z",
  "aliases" : [ "CVE-2022-22690" ],
  "summary" : "Umbraco ApplicationURL Overwrite",
  "details" : "Within the Umbraco CMS, a configuration element named \"UmbracoApplicationUrl\" (or just \"ApplicationUrl\") is used whenever application code needs to build a URL pointing back to the site. For example, when a user resets their password and the application builds a password reset URL or when the administrator invites users to the site. For Umbraco versions less than 9.2.0, if the Application URL is not specifically configured, the attacker can manipulate this value and store it persistently affecting all users for components where the \"UmbracoApplicationUrl\" is used. For example, the attacker is able to change the URL users receive when resetting their password so that it points to the attackers server, when the user follows this link the reset token can be intercepted by the attacker resulting in account takeover.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Umbraco.Cms.Core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-22690"
  }, {
    "type" : "WEB",
    "url" : "https://appcheck-ng.com/umbraco-applicationurl-overwrite-persistent-password-reset-poison-cve-2022-22690-cve-2022-22691"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/umbraco/Umbraco-CMS"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-444" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-01-19T22:24:06Z",
    "nvd_published_at" : "2022-01-18T17:15:00Z"
  }
}