CVE-2017-7429 in NetIQ eDirectory PKI Plugin
Summary
by MITRE
The certificate upload in NetIQ eDirectory PKI plugin before 8.8.8 Patch 10 Hotfix 1 could be abused to upload JSP code which could be used by authenticated attackers to execute JSP applets on the iManager server.
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Analysis
by VulDB Data Team • 01/10/2020
The vulnerability identified as CVE-2017-7429 represents a critical security flaw within the NetIQ eDirectory PKI plugin ecosystem, specifically affecting versions prior to 8.8.8 Patch 10 Hotfix 1. This issue resides in the certificate upload functionality that forms part of the broader identity and access management infrastructure provided by NetIQ. The vulnerability stems from insufficient input validation and sanitization mechanisms within the certificate handling process, creating an exploitable pathway for authenticated attackers to bypass normal security controls.
The technical exploitation of this vulnerability occurs through a file upload vulnerability that allows attackers to upload malicious JSP (Java Server Pages) code instead of legitimate certificate files. This flaw enables attackers to execute arbitrary code on the iManager server, which serves as the web-based management interface for NetIQ eDirectory. The vulnerability specifically affects the certificate upload functionality within the PKI (Public Key Infrastructure) plugin, where the system fails to properly validate the file type and content of uploaded certificates, allowing for the injection of executable code.
From an operational perspective, this vulnerability presents a severe risk to organizations relying on NetIQ eDirectory for their identity management needs. The authenticated nature of the attack means that an attacker must first obtain valid credentials, but once achieved, they can leverage this privilege to execute arbitrary code on the server. This capability enables attackers to establish persistent access, escalate privileges, and potentially move laterally within the network. The impact extends beyond simple code execution as it allows for complete compromise of the iManager server, which typically contains sensitive configuration data and management interfaces for the entire directory service infrastructure.
The vulnerability maps directly to CWE-434, which describes "Unrestricted Upload of File with Dangerous Type," and aligns with several ATT&CK techniques including T1059.007 for Command and Scripting Interpreter and T1078 for Valid Accounts. Organizations using vulnerable versions of NetIQ eDirectory are at significant risk of unauthorized access and potential data breaches, as the compromised iManager server could provide attackers with administrative capabilities over the entire directory service. The attack vector requires minimal sophistication and can be automated, making it particularly dangerous in environments where the system is exposed to external networks.
Mitigation strategies should focus on immediate patch deployment to version 8.8.8 Patch 10 Hotfix 1 or later, which addresses the file upload validation issues. Organizations should also implement network segmentation to limit access to the iManager server, enforce strict access controls, and monitor for suspicious file upload activities. Additional defensive measures include implementing web application firewalls, conducting regular security assessments, and establishing robust incident response procedures. The vulnerability highlights the importance of proper input validation and the principle of least privilege in security architecture, as well as the need for regular security updates and patch management processes to prevent exploitation of known vulnerabilities.