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SMTP misconfiguration leading to potential registered user email.

Low
bergmania published GHSA-8qp8-9rpw-j46c 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

A user enumeration attack is possible when SMTP is not setup correctly, but reset password is enabled

Explanation of the vulnerability

Two different error messages was shown, based on if the user exists or not when using the forgot password functionality, when the SMTP was configured but do not response.

Severity

Low

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
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
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:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVE ID

CVE-2023-49274

Weaknesses

No CWEs

Credits