moment up to 2.29.3 String-to-Date Parser resource consumption

Summaryinfo

A vulnerability was found in moment up to 2.29.3. It has been declared as problematic. This impacts an unknown function of the component String-to-Date Parser. Such manipulation leads to resource consumption. This vulnerability is referenced as CVE-2022-31129. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in moment up to 2.29.3. It has been rated as problematic. Affected by this issue is some unknown processing of the component String-to-Date Parser. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

moment is a JavaScript date library for parsing, validating, manipulating, and formatting dates. Affected versions of moment were found to use an inefficient parsing algorithm. Specifically using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs. Users may notice a noticeable slowdown is observed with inputs above 10k characters. Users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks. The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking. Users are advised to upgrade. Users unable to upgrade should consider limiting date lengths accepted from user input.

The weakness was published 07/07/2022 as GHSA-wc69-rhjr-hc9g. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-31129 since 05/18/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 209236 (Atlassian Confluence 7.19.x < 7.19.26 (CONFSERVER-98189)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.29.4 eliminates this vulnerability. Applying the patch 9a3b5894f3d5d602948ac8a02e4ee528a49ca3a3 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.

The vulnerability is also documented in the vulnerability database at Tenable (209236). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• moment

Version

• 2.29.0
• 2.29.1
• 2.29.2
• 2.29.3

License

• open-source

Website

• Product: https://github.com/moment/moment/

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Once again VulDB remains the best source for vulnerability data.

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