CVE-2018-9066 in XClarity Administrator
Summary
by MITRE
In Lenovo xClarity Administrator versions earlier than 2.1.0, an authenticated LXCA user can, under specific circumstances, inject additional parameters into a specific web API call which can result in privileged command execution within LXCA's underlying operating system.
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Analysis
by VulDB Data Team • 03/11/2020
The vulnerability identified as CVE-2018-9066 affects Lenovo xClarity Administrator versions prior to 2.1.0, representing a critical security flaw that exploits parameter injection techniques within the web application's API layer. This issue stems from insufficient input validation and sanitization mechanisms that allow authenticated users to manipulate API requests by appending additional parameters. The vulnerability specifically targets a particular web API call where the application fails to properly validate or escape user-supplied data before processing it within the underlying operating system context. The flaw enables an authenticated attacker with access to the LXCA interface to escalate privileges and execute arbitrary commands on the host system, effectively bypassing the application's intended security boundaries.
The technical exploitation of this vulnerability falls under the category of command injection attacks, which aligns with CWE-77 and CWE-94 classifications that address improper neutralization of special elements used in OS commands and code injection respectively. The attack vector requires an authenticated user session, making it an authenticated command injection vulnerability that can be leveraged for privilege escalation within the system. The underlying operating system execution occurs through improper handling of user input that flows directly into system command invocations without adequate sanitization or parameter validation. This type of vulnerability is particularly dangerous because it allows attackers to execute system-level commands with the privileges of the LXCA service account, potentially leading to full system compromise and unauthorized access to sensitive infrastructure management functions.
The operational impact of CVE-2018-9066 extends beyond simple privilege escalation, as it provides attackers with a pathway to execute arbitrary code on the underlying operating system where LXCA operates. This capability enables attackers to potentially access other system resources, modify configuration settings, exfiltrate sensitive data, or establish persistent access through the compromised management interface. The vulnerability affects the integrity and confidentiality of the entire infrastructure management ecosystem that relies on xClarity Administrator for device monitoring and control. Organizations using affected versions face significant risk of unauthorized access to critical infrastructure components, particularly in environments where LXCA serves as a central management point for multiple server and storage devices. The vulnerability's exploitation can lead to complete compromise of the management infrastructure, undermining the security posture of the entire data center or enterprise network.
Mitigation strategies for this vulnerability require immediate patching of affected systems to version 2.1.0 or later, which addresses the parameter injection flaw through proper input validation and sanitization mechanisms. Organizations should implement network segmentation to limit access to LXCA management interfaces and restrict authentication to authorized personnel only. Additional security measures include monitoring API access logs for suspicious parameter injection attempts and implementing web application firewalls to detect and block malformed API requests. The vulnerability highlights the importance of proper input validation in web applications and demonstrates how authenticated users can be leveraged to escalate privileges through API parameter manipulation. Security teams should conduct comprehensive vulnerability assessments to identify similar injection flaws in other management interfaces and ensure that all authenticated API endpoints properly validate and sanitize user input before processing. The ATT&CK framework categorizes this vulnerability under privilege escalation techniques and command execution methods, emphasizing the need for comprehensive security controls that address both authentication and input validation weaknesses in management interfaces.