freescout-helpdesk freescout up to 1.8.138 /public/js/main.js getQueryParam prototype pollution

Summaryinfo

A vulnerability was found in freescout-helpdesk freescout up to 1.8.138. It has been declared as problematic. This issue affects the function getQueryParam of the file /public/js/main.js. Executing a manipulation can lead to prototype pollution. The identification of this vulnerability is CVE-2024-34698. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in freescout-helpdesk freescout up to 1.8.138. It has been declared as problematic. This vulnerability affects the function getQueryParam of the file /public/js/main.js. The manipulation with an unknown input leads to a prototype pollution vulnerability. The CWE definition for the vulnerability is CWE-1321. The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2024-34698 since 05/07/2024. The exploitation appears to be difficult. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 1.8.139 eliminates this vulnerability.

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Productinfo

Vendor

• freescout-helpdesk

Name

• freescout

Version

• 1.8.138

Website

• Product: https://github.com/freescout-helpdesk/freescout/

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