CVE-2024-5550 Information

Description

In h2oai/h2o-3 version 3.40.0.4 an exposure of sensitive information vulnerability exists due to an arbitrary system path lookup feature. This vulnerability allows any remote user to view full paths in the entire file system where h2o-3 is hosted. Specifically the issue resides in the Typeahead API call which when requested with a typeahead lookup of ‘/’ exposes the root filesystem including directories such as /home /usr /bin among others. This vulnerability could allow attackers to explore the entire filesystem and when combined with a Local File Inclusion (LFI) vulnerability could make exploitation of the server trivial.

Reference

https://huntr.com/bounties/e76372c2-39be-4984-a7c8-7048a75a25dc