CVE-2016-8233 in XClarity Administrator
Summary
by MITRE
Log files generated by Lenovo XClarity Administrator (LXCA) versions earlier than 1.2.2 may contain user credentials in a non-secure, clear text form that could be viewed by a non-privileged user.
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Analysis
by VulDB Data Team • 09/03/2020
The vulnerability identified as CVE-2016-8233 represents a critical security flaw in Lenovo XClarity Administrator software versions prior to 1.2.2, where sensitive authentication data is stored in plaintext within log files. This issue directly impacts the confidentiality and integrity of user credentials within enterprise data center management environments. The flaw stems from inadequate input validation and secure logging practices during the generation of administrative logs, creating an avenue for unauthorized information disclosure. The vulnerability is particularly concerning as it affects a widely deployed management tool used for monitoring and controlling Lenovo infrastructure components, making it a prime target for attackers seeking persistent access to enterprise environments. This weakness allows for privilege escalation through credential exposure, as non-privileged users who gain access to these log files can extract authentication tokens and user credentials without requiring additional exploitation techniques. The vulnerability falls under the category of insecure logging practices and demonstrates poor secure coding principles in handling sensitive information within system audit trails.
The technical implementation of this vulnerability occurs when the LXCA software generates log entries containing user authentication information, typically in a format that does not adequately protect credential data. The system fails to properly sanitize or encrypt sensitive fields within log records, resulting in clear text storage of usernames, passwords, or authentication tokens. This represents a direct violation of security best practices outlined in the CWE-312 category, which specifically addresses the exposure of sensitive information through improper handling of credentials in log files. The flaw operates at the application level and affects the software's logging mechanism rather than network protocols or system-level security controls. Attackers can exploit this vulnerability by simply accessing the log file locations where these credentials are stored, requiring no special privileges or complex exploitation methods. The issue persists across multiple versions of the software, indicating a fundamental design flaw that was not adequately addressed in the development lifecycle.
The operational impact of CVE-2016-8233 extends beyond immediate credential theft to encompass broader security implications within enterprise infrastructure management. Organizations using affected versions of LXCA face potential compromise of their entire data center management ecosystem, as these credentials often provide access to critical infrastructure components including servers, storage systems, and network devices. The vulnerability creates a persistent threat vector where compromised credentials can be used for lateral movement within the network, potentially leading to complete system compromise. The attack surface is expanded due to the nature of log files being accessible to various system users, including those with minimal privileges. This weakness directly aligns with tactics described in the MITRE ATT&CK framework under the credential access and privilege escalation domains, where attackers can leverage exposed credentials to maintain persistent access to target systems. The impact is particularly severe in environments where multiple administrators use the same management interface, as credential exposure affects the entire administrative workforce rather than isolated individuals.
Mitigation strategies for CVE-2016-8233 require immediate implementation of software updates to version 1.2.2 or later, which address the insecure logging implementation. Organizations should also implement comprehensive log file access controls, ensuring that only authorized personnel can access administrative log files containing sensitive information. The remediation process should include immediate review and cleanup of existing log files that may contain exposed credentials, followed by implementation of secure logging practices that properly mask or encrypt sensitive data. Network segmentation and access control measures should be enhanced to limit access to management interfaces and their associated log files. Security monitoring should be implemented to detect unauthorized access attempts to log file locations, while regular security assessments should verify that logging mechanisms properly handle sensitive information. Organizations should also establish procedures for credential rotation following any potential exposure, ensuring that compromised credentials are immediately invalidated. The fix addresses the root cause by implementing proper input sanitization and secure credential handling within the logging subsystem, aligning with industry standards for secure software development practices and reducing the risk of similar vulnerabilities in future releases.