Path Traversal in H2o
CVE-2024-5550
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.008 (54.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- H2o — versions 3.40.0.4
- H2oai H2oai/h2o-3 — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@huntr.dev (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-5550?
- CVE-2024-5550 is a medium-severity vulnerability in H2o, classified under Path Traversal. CVSS score: 5.3/10. Published 2024-06-06.
- How severe is CVE-2024-5550?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-5550 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.