delvedor find-my-way up to 8.2.1/9.0.0 redos

Summaryinfo

A vulnerability was found in delvedor find-my-way up to 8.2.1/9.0.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality. Such manipulation leads to redos. This vulnerability is uniquely identified as CVE-2024-45813. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in delvedor find-my-way up to 8.2.1/9.0.0. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a redos vulnerability. Using CWE to declare the problem leads to CWE-1333. The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles. Impacted is availability. CVE summarizes:

find-my-way is a fast, open source HTTP router, internally using a Radix Tree (aka compact Prefix Tree), supports route params, wildcards, and it's framework independent. A bad regular expression is generated any time one has two parameters within a single segment, when adding a `-` at the end, like `/:a-:b-`. This may cause a denial of service in some instances. Users are advised to update to find-my-way v8.2.2 or v9.0.1. or subsequent versions. There are no known workarounds for this issue.

The advisory is available at github.com. This vulnerability is handled as CVE-2024-45813 since 09/09/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1449.003 by the MITRE ATT&CK project.

Upgrading to version 8.2.2 or 9.0.1 eliminates this vulnerability. Applying the patch 5e9e0eb5d8d438e06a185d5e536a896572dd0440 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

• delvedor

Name

• find-my-way

Version

• 8.2.0
• 8.2.1
• 9.0

License

• open-source

Website

• Product: https://github.com/delvedor/find-my-way/

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