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CVE-2024-34698 Design/Logic Flaw

Routine
Remediate Within 6 Months

CVE Information

Original CVE data

Published:
Updated:

FreeScout is a free, self-hosted help desk and shared mailbox. Versions of FreeScout prior to 1.8.139 contain a Prototype Pollution vulnerability in the `/public/js/main.js` source file. The Prototype Pollution arises because the `getQueryParam` Function recursively merges an object containing user-controllable properties into an existing object (For URL Query Parameters Parsing), without first sanitizing the keys. This can allow an attacker to inject a property with a key `__proto__`, along with arbitrarily nested properties. The merge operation assigns the nested properties to the `params` object's prototype instead of the target object itself. As a result, the attacker can pollute the prototype with properties containing harmful values, which are then inherited by user-defined objects and subsequently used by the application dangerously. The vulnerability lets an attacker control properties of objects that would otherwise be inaccessible. If the application subsequently handles an attacker-controlled property in an unsafe way, this can potentially be chained with other vulnerabilities like DOM-based XSS, Open Redirection, Cookie Manipulation, Link Manipulation, HTML Injection, etc. Version 1.8.139 contains a patch for the issue.

CWE:
CVSS v2-
CVSS v3-
References
https://github.com/freescout-helpdesk/freescout/security/advisories/GHSA-rx6j-4c33-9h3r
https://github.com/freescout-helpdesk/freescout/commit/2614514bc6d6c4ad563202a1c9cae5a97b195cc5
Affected Vendors

Basic Analysis

Common vulnerability metrics

Vulnerabilty type as detected by PRIOnengine

Design/Logic Flaw

CVSS Scores as calculated by PRIOnengine
CVSS v26.8
AV:N/AC:M/AU:N/C:P/I:P/A:P
CVSS v39.6
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:H
MITRE CWE Top 25

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Exploits

No exploit code is reported to exist.

Active Exploitation

Vulnerability is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog

Social Network Activity

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Threat Actor Activity

No sightings of the vulnerability within threat reports.

Cybersecurity Frameworks

How the vulnerability maps against various cybersecurity frameworks

T1499.004 - Endpoint Denial of Service (Application or System Exploitation)
T1190 - Exploit Public-Facing Application
T1083 - File and Directory Discovery
T1059 - Command and Scripting Interpreter
T1005 - Data from Local System

Compliance Impact

How the submited vulnerability affects compliance

PCI DSS v3.2.1-6.5.7 - Cross Site Scripting
PCI DSS v3.2.1-6.5.1 - Injection Flaws

Web Application Security Frameworks

Applicable if the issue likely affects a web application

WASC-38 - URL Redirector Abuse