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CVE-2024-29035:
Blind SSRF Leads to Port Scan by using Webhooks

4.1

CVSS Score
3.1

Basic Information

EPSS Score
0.3696%
Published
4/17/2024
Updated
2/12/2025
KEV Status
No
Technology
TechnologyC#

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
Umbraco.Cms.Corenuget>= 13.0.0, < 13.1.113.1.1
Umbraco.Cms.Web.BackOfficenuget>= 13.0.0, < 13.1.113.1.1

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from the WebhookMapDefinition's mapping logic that populated WebhookLogViewModel with raw server response data without debug mode checks. The patch added conditional logic to only include this sensitive information when debug mode is active. The pre-patch version of this function directly mapped internal server response details to view models accessible through webhook logs, enabling attackers to infer internal network topology through error responses.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

### Imp**t **ilin* w***ooks lo*s *r* *v*il**l* w**n solution is not in ***u* mo**. T*os* lo*s **n *ont*in in*orm*tion t**t is *riti**l. ### *****t** V*rsions Um*r**o v*rsions **.*.* - **.*.* ### P*t***s **.*.* ### Work*roun*s *is**lin* w***ooks *

Reasoning

T** vuln*r**ility st*ms *rom t** W***ookM*p***inition's m*ppin* lo*i* t**t popul*t** W***ookLo*Vi*wMo**l wit* r*w s*rv*r r*spons* **t* wit*out ***u* mo** ****ks. T** p*t** ***** *on*ition*l lo*i* to only in*lu** t*is s*nsitiv* in*orm*tion w**n ***u*