Cloudera Hue Ace Editor Directory Traversal Information Disclosure Vulnerability

The primary impact of CVE-2025-3884 is the unauthorized disclosure of sensitive information. An attacker can exploit this vulnerability to read arbitrary files on the system where Cloudera Hue is running, potentially gaining access to configuration files, user data, or other confidential resources. The lack of authentication required for exploitation significantly broadens the attack surface, making it accessible to a wide range of threat actors. This could lead to data breaches, intellectual property theft, and compromise of the underlying infrastructure. While the description doesn't explicitly mention lateral movement, successful information disclosure could provide attackers with credentials or other information to facilitate further attacks within the network.

Organizations utilizing Cloudera Hue version 4.11.0, particularly those with publicly accessible Hue instances or those lacking robust file access controls, are at significant risk. Shared hosting environments where multiple users share the same Hue instance are also particularly vulnerable, as an attacker could potentially exploit the vulnerability to access data belonging to other users.

• linux / server:

journalctl -u hue -g "Ace Editor" | grep -i "file access"

• generic web:

curl -I <hue_url>/ace/editor/index.html?file=/etc/passwd

• generic web:

grep -r "ace/editor/index.html?file=" /var/log/apache2/access.log

1. 2025-05-22Disclosure

   disclosure

1. Reserviert2025-04-22
2. Veröffentlicht2025-05-22
3. EPSS aktualisiert2026-03-23

The primary mitigation for CVE-2025-3884 is to upgrade Cloudera Hue to version 4.11.1 or later, which contains the fix. If upgrading immediately is not possible, consider implementing temporary workarounds such as restricting access to the Ace Editor functionality or implementing strict file access controls. Review and harden the file permissions on the Cloudera Hue installation directory to limit the potential impact of a successful exploit. Monitor system logs for unusual file access patterns that might indicate exploitation attempts. After upgrading, confirm the fix by attempting to access a restricted file via the Ace Editor – the request should be denied.