CVE-2022-34380 in CloudLink
Summary
by MITRE • 09/01/2022
Dell CloudLink 7.1.3 and all earlier versions contain an Authentication Bypass Using an Alternate Path or Channel Vulnerability. A high privileged local attacker may potentially exploit this vulnerability leading to authentication bypass and access the CloudLink system console. This is critical severity vulnerability as it allows attacker to take control of the system.
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Analysis
by VulDB Data Team • 10/11/2022
The vulnerability identified as CVE-2022-34380 affects Dell CloudLink 7.1.3 and all earlier versions, representing a critical authentication bypass flaw that undermines the security posture of the affected system. This vulnerability falls under the category of authentication bypass using an alternate path or channel, a weakness that allows attackers to circumvent the normal authentication mechanisms by leveraging alternative access vectors. The flaw specifically targets the CloudLink system console, which serves as the primary interface for managing and controlling the cloud infrastructure components. The vulnerability's severity is classified as critical due to its potential for complete system compromise, as it enables unauthorized access to the system console where administrative functions are performed.
The technical implementation of this vulnerability stems from insufficient validation of authentication paths within the CloudLink system architecture. A high privileged local attacker who already possesses some level of access to the system can exploit this weakness to bypass the standard authentication mechanisms that normally protect the console interface. This alternate path exploitation technique allows the attacker to gain access to the system console without proper authentication credentials, effectively providing them with administrative privileges. The vulnerability exists because the system does not adequately verify the legitimacy of access requests when they arrive through alternative channels or paths that bypass the primary authentication flow. This weakness creates a security gap where legitimate authentication checks are circumvented, enabling unauthorized access to critical system components.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with complete control over the CloudLink system. Once exploited, the attacker can manipulate system configurations, access sensitive data, modify security settings, and potentially compromise the entire cloud infrastructure managed by the CloudLink platform. The ability to bypass authentication and gain console access means that attackers can perform administrative functions, create backdoors, and establish persistent access to the environment. This vulnerability essentially removes the primary security barrier that separates authorized administrators from unauthorized users, making the system vulnerable to malicious activities including data exfiltration, system disruption, and unauthorized modifications. The impact extends beyond immediate system compromise to potentially affect all cloud services and data managed through the compromised CloudLink infrastructure.
Organizations utilizing Dell CloudLink 7.1.3 or earlier versions should implement immediate mitigation strategies to address this critical vulnerability. The primary recommendation involves upgrading to the latest version of Dell CloudLink that contains patches for this authentication bypass flaw, as provided by Dell's security advisories. Additionally, implementing network segmentation and access controls can help limit the potential impact of exploitation by reducing the attack surface available to local attackers. Security monitoring should be enhanced to detect unusual authentication patterns or unauthorized console access attempts. Organizations should also conduct thorough security assessments of their CloudLink implementations to identify any potential unauthorized access that may have occurred prior to patching. The vulnerability aligns with CWE-287 which addresses improper authentication issues, and represents a significant concern from an attacker perspective as outlined in the ATT&CK framework under privilege escalation and credential access techniques. Regular security updates and patch management processes should be strengthened to prevent similar vulnerabilities from being introduced in future deployments.