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Privilege Escalation using Spoofing

Moderate
bergmania published GHSA-cfr5-7p54-4qg8 Dec 12, 2023

Package

nuget Umbraco-CMS (NuGet)

Affected versions

> 8.0.0

Patched versions

8.18.10, 10.8.1, 12.3.4+

Description

Impact

Users with low privileges ( Editor, etc) are able to access some unintended endpoints.

Explanation of the vulnerability

Possible to delete redirect urls, when disabled by admin with only access to backoffice
Possible to access the examine dashboard with only access to backoffice
Possible to access the published cache dashboard with only access to backoffice
Possible to access the telemetry dashboard with only access to backoffice
Possible to access the languages with only access to backoffice
Possible to access the stylesheets with only access to backoffice

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

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

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVE ID

CVE-2023-49273

Weaknesses

No CWEs

Credits