Description
Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Prior to 1.19.3, Fluentd allows dynamically constructing file paths using the ${tag} placeholder, and insufficient validation of ${tag} in file configurations such as the path parameter of the out_file plugin allows attackers sending untrusted tags containing path traversal characters to write or overwrite arbitrary files and potentially achieve remote code execution. This issue is fixed in version 1.19.3.
Problem types
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Product status
References
github.com/...luentd/security/advisories/GHSA-44hj-4m45-frj3
github.com/fluent/fluentd/pull/5391
github.com/...ommit/45c87a81f3ac0b72b3f9dcfe8cfb5f9038f81437
github.com/fluent/fluentd/releases/tag/v1.19.3