CVE-2009-3843 in Operations Manager
Summary
by MITRE
HP Operations Manager 8.10 on Windows contains a "hidden account" in the XML file that specifies Tomcat users, which allows remote attackers to conduct unrestricted file upload attacks, and thereby execute arbitrary code, by using the org.apache.catalina.manager.HTMLManagerServlet class to make requests to manager/html/upload.
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Analysis
by VulDB Data Team • 01/04/2025
The vulnerability identified as CVE-2009-3843 affects HP Operations Manager 8.10 running on Windows systems and represents a critical security flaw that stems from improper access control mechanisms within the application's configuration files. This issue manifests through a hidden account embedded within an XML file that defines Tomcat user permissions, creating an unexpected backdoor that bypasses normal authentication procedures. The flaw exists in the application's deployment configuration where the hidden account remains active even when standard user management controls should prevent unauthorized access, effectively creating a persistent security weakness that persists across system restarts and configuration changes.
The technical implementation of this vulnerability involves the manipulation of the Tomcat manager application's HTML interface, specifically targeting the org.apache.catalina.manager.HTMLManagerServlet class which provides administrative functionality through web-based interfaces. Attackers can exploit this by leveraging the hidden account credentials to access the manager/html/upload endpoint, which allows unrestricted file upload capabilities without proper authentication verification. This servlet implementation lacks adequate input validation and access control checks, enabling remote attackers to upload malicious files directly to the server's file system. The uploaded files can then be executed with the privileges of the web application server, typically running with elevated permissions that can compromise the entire system.
The operational impact of this vulnerability extends far beyond simple unauthorized access, as it creates a complete compromise pathway for attackers to execute arbitrary code on the target system. The unrestricted file upload capability combined with the hidden account access allows threat actors to deploy web shells, backdoors, or other malicious payloads that can persist across system reboots and remain undetected by standard monitoring systems. This vulnerability directly violates multiple security principles including the principle of least privilege and proper access control enforcement, as the hidden account provides elevated privileges without proper authorization mechanisms. The attack vector demonstrates a classic path to system compromise that aligns with attack techniques documented in the attack pattern taxonomy, specifically related to privilege escalation and code execution through web application vulnerabilities.
Mitigation strategies for CVE-2009-3843 require immediate remediation of the configuration files to remove or disable the hidden account and ensure proper access control enforcement. Organizations should implement comprehensive network segmentation to isolate critical systems from external access and deploy web application firewalls to monitor and filter traffic to the manager application endpoints. The vulnerability also highlights the importance of proper configuration management and regular security audits of application deployments, as the hidden account represents a misconfiguration that should never have been present in production environments. System administrators must disable the manager application entirely if it is not required for operations, or at minimum restrict access to the upload functionality through network-level controls and proper authentication mechanisms. This vulnerability exemplifies the need for defense in depth strategies and aligns with security frameworks that emphasize the importance of secure configuration management and the elimination of unnecessary administrative interfaces.
This vulnerability relates to several common weakness enumerations including CWE-255 Credential Management Issues and CWE-264 Permissions, Privileges, and Access Controls, with specific implications for web application security and the management of administrative interfaces. The attack pattern demonstrates characteristics consistent with the attack technique of privilege escalation through weak access controls and improper authentication mechanisms. Organizations should implement regular security assessments of their web application configurations and maintain up-to-date vulnerability management processes to prevent similar issues from occurring in other applications and systems throughout their infrastructure.