NetSight
critical9.3

CVE-2023-6569

External Control of File Name or Path in h2oai/h2o-3

Impact

Remote unauthenticated attackers can overwrite arbitrary server files with attacker-controllable data. The data that the attacker can control is not entirely arbitrary. h2o writes a CSV/XLS/etc file to disk, so the attacker data is wrapped in quotations and starts with "C1", if they're exporting as CSV.

Affected packages

EcosystemPackageAffectedFixed in
piph2o< 3.46.0.13.46.0.1

Affected products

VendorProductAffected versions
H2oH2o
Version 3.40.0.4

Weakness classification

References