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Blind SSRF Leads to Port Scan by using Webhooks

Moderate severity GitHub Reviewed Published Apr 17, 2024 in umbraco/Umbraco-CMS • Updated Feb 12, 2025

Package

nuget Umbraco.Cms.Core (NuGet)

Affected versions

>= 13.0.0, < 13.1.1

Patched versions

13.1.1
nuget Umbraco.Cms.Web.BackOffice (NuGet)
>= 13.0.0, < 13.1.1
13.1.1

Description

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.

References

@netcamo netcamo published to umbraco/Umbraco-CMS Apr 17, 2024
Published by the National Vulnerability Database Apr 17, 2024
Published to the GitHub Advisory Database Apr 17, 2024
Reviewed Apr 17, 2024
Last updated Feb 12, 2025

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
High
User interaction
None
Scope
Changed
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:L/PR:H/UI:N/S:C/C:L/I:N/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(20th percentile)

Weaknesses

CVE ID

CVE-2024-29035

GHSA ID

GHSA-74p6-39f2-23v3

Source code

Credits

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