Clever underscore.deep up to 0.5.2 deepFromFlat prototype pollution

Summaryinfo

A vulnerability described as critical has been identified in Clever underscore.deep up to 0.5.2. This affects the function deepFromFlat. Such manipulation leads to prototype pollution. This vulnerability is documented as CVE-2022-31106. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Clever underscore.deep up to 0.5.2. It has been rated as critical. Affected by this issue is the function deepFromFlat. The manipulation with an unknown input leads to a prototype pollution vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Underscore.deep is a collection of Underscore mixins that operate on nested objects. Versions of `underscore.deep` prior to version 0.5.3 are vulnerable to a prototype pollution vulnerability. An attacker can craft a malicious payload and pass it to `deepFromFlat`, which would pollute any future Objects created. Any users that have `deepFromFlat` or `deepPick` (due to its dependency on `deepFromFlat`) in their code should upgrade to version 0.5.3 as soon as possible. Users unable to upgrade may mitigate this issue by modifying `deepFromFlat` to prevent specific keywords which will prevent this from happening.

The weakness was released 06/28/2022 as GHSA-8j79-hfj5-f2xm. The advisory is available at github.com. This vulnerability is handled as CVE-2022-31106 since 05/18/2022. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

Upgrading to version 0.5.3 eliminates this vulnerability. Applying the patch b5e109ad05b48371be225fa4d490dd08a94e8ef7 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

• Clever

Name

• underscore.deep

Version

• 0.5.0
• 0.5.1
• 0.5.2

License

• open-source

Website

• Product: https://github.com/Clever/underscore.deep/

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