PT-2024-36531 · H2O.Ai · H2O-3

Published 2024-06-06 · Updated 2025-10-15 · CVE-2024-5550

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions h2oai/h2o-3 version 3.40.0.4

Description The issue is caused by an arbitrary system path lookup feature, allowing any remote user to view full paths in the entire file system where h2o-3 is hosted. Specifically, the problem 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 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.

Recommendations For version 3.40.0.4, as a temporary workaround, consider restricting access to the Typeahead API call until a patch is available. Avoid using the Typeahead API call with a typeahead lookup of '/' to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Information Disclosure

Path traversal

Weakness Enumeration

CWE-200

CWE-22

Related Identifiers

CVE-2024-5550

GHSA-X234-R5FG-X52M

Affected Products

H2O-3

References · 9

• 🔥 https://huntr.com/bounties/e76372c2-39be-4984-a7c8-7048a75a25dc · Exploit
• https://osv.dev/vulnerability/GHSA-x234-r5fg-x52m · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-5550 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-5550 · Security Note
• https://github.com/h2oai/h2o-3 · Note
• https://t.me/cvenotify/98498 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1798823819039080848 · Twitter Post
• https://twitter.com/CVEnew/status/1798786711629254841 · Twitter Post
• https://t.me/cveNotify/138745 · Telegram Post