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GHSA-hrww-x3fq-xcvh CVE-2024-43377

Umbraco CMS Improper Access Control vulnerability

Medium NuGet
Severity
0.0 / 10
Medium · CVSS 4.0
Exploit chance (EPSS)
0.24%
Chance of exploitation in the next 30 days. Higher than 15.69% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-284 Improper Access Control
Fix
14.1.2
Upgrade Umbraco.Cms to this version or later

Description

Impact

As an authenticated user one can access a few unintended endpoints

Explanation of the vulnerability

Few endpoints in Umbraco Management API was not protected by a specific section. These just required you to be authenticated. Due to the fact that a member is also just authenticated, it was possible to get info from these endpoints using a member token.

Affected versions

NuGet

PackageVulnerableFixed in
Umbraco.Cms
>= 14.0.0, < 14.1.2
14.1.2

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

Umbraco.Cms NuGet → 14.1.2

dotnet
dotnet add package Umbraco.Cms --version 14.1.2

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
Present
Privileges required
None
User interaction
None
Confidentiality (vulnerable system)
Low
Integrity (vulnerable system)
Low
Availability (vulnerable system)
None
Confidentiality (subsequent systems)
Low
Integrity (subsequent systems)
Low
Availability (subsequent systems)
None

CVSS 3.1 5.4

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Weakness

CWE-284: Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How to prevent it
  • Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-wr57-hqmp-fgvh
Umbraco: Delivery API leaks protected (Public Access) content through Content Picker / Multi-Node Tree Picker expansion
High Also affects Umbraco.Cms
GHSA-vr9v-27gg-qgx4
Umbraco.Cms: XSS/HTML Injection in Umbraco Backoffice confirmation dialog
Medium Also affects Umbraco.Cms
GHSA-2qjj-h6wp-c7h7
Umbraco.Cms: Open Redirect Vulnerability in Surface Controllers
Medium Also affects Umbraco.Cms
GHSA-rhcg-3h8r-v6vp
Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks
High Also affects Umbraco.Cms
GHSA-vrqc-59mw-qqg7
Umbraco has Stored XSS in UFM Rendering Pipeline via Permissive DOMPurify Attribute Filtering
Medium Also affects Umbraco.Cms
GHSA-fpvf-fvp5-996r
Umbraco Backoffice API Allows Unauthorized Modification of Domain Data
Medium Also affects Umbraco.Cms
GHSA-54mj-vcvj-q3v5
Umbraco CMS has an arbitrary file upload vulnerability
Critical Also affects Umbraco.Cms
GHSA-hfv2-pf68-m33x
Umbraco Vulnerable to Improper File Access and Credential Exposure in Dictionary Import Functionality
Medium Also affects Umbraco.Cms
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