CyberRota Analysis
AI-GeneratedThe Apache Logviewer is vulnerable due to improper access controls on daemon logs, allowing any user who can bypass the servlet filter to access sensitive log files, including `nimbus.log` and `supervisor.log`, which may contain confidential tenant information. Additionally, log listing endpoints expose all tenant log file names without proper user filtering, leading to potential information leakage. Organizations using affected versions should prioritize upgrading to version 3.1.0 to ensure proper access controls are enforced or implement a reverse proxy to restrict access to these endpoints in the interim.
Original NVD Description
Description The Logviewer offers `logs.users` and `logs.groups` so operators can control who may read log content. For daemon logs those settings were not applied: the access decision combined the "this is a daemon log" flag with the authorizer result in a way that discarded the authorizer's answer whenever the flag was set, and the daemon log page and download endpoints reached the handler without consulting an authorizer at all. Any user able to pass the configured servlet filter could therefore read `nimbus.log`, `supervisor.log` and the other daemon logs on every reachable node, which contain other tenants' topology names, owners and configuration fragments. The same advisory covers the log listing endpoints, which accepted a user argument and never applied it, so `/listLogs` and `/searchLogs` returned every tenant's topology and worker log file names regardless of the caller. That part is metadata only. There was no configuration that closed either behaviour. Mitigation Upgrade to 3.1.0, where the daemon log paths evaluate the same configured user and group lists that the worker log paths already used, and the listing endpoints filter by the requesting user. Users who cannot upgrade immediately should place the Logviewer behind a reverse proxy that restricts the daemon log endpoints, and should treat daemon log content as readable by any filter-authenticated user. Credit The ASF -- found using Claude agents to study the security of open-source projects, validated and reported by Apache Storm.