edmundhung conform up to 1.1.0 parseWith prototype pollution

Summaryinfo

A vulnerability was found in edmundhung conform up to 1.1.0 and classified as critical. Affected is the function parseWith. Executing a manipulation can lead to prototype pollution. This vulnerability is tracked as CVE-2024-32866. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in edmundhung conform up to 1.1.0 and classified as critical. This vulnerability affects the function parseWith. 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:

Conform, a type-safe form validation library, allows the parsing of nested objects in the form of `object.property`. Due to an improper implementation of this feature in versions prior to 1.1.1, an attacker can exploit the feature to trigger prototype pollution by passing a crafted input to `parseWith...` functions. Applications that use conform for server-side validation of form data or URL parameters are affected by this vulnerability. Version 1.1.1 contains a patch for the issue.

The advisory is shared for download at github.com. This vulnerability was named CVE-2024-32866 since 04/19/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 1.1.1 eliminates this vulnerability. Applying the patch 4819d51b5a53fd5486fc85c17cdc148eb160e3de is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• edmundhung

Name

• conform

Version

• 1.0
• 1.1.0

License

• open-source

Website

• Product: https://github.com/edmundhung/conform/

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