CVE-2021-36298 in InsightIQ
Summary
by MITRE • 10/02/2021
Dell EMC InsightIQ, versions prior to 4.1.4, contain risky cryptographic algorithms in the SSH component. A remote unauthenticated attacker could potentially exploit this vulnerability leading to authentication bypass and remote takeover of the InsightIQ. This allows an attacker to take complete control of InsightIQ to affect services provided by SSH; so Dell recommends customers to upgrade at the earliest opportunity.
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Analysis
by VulDB Data Team • 10/08/2021
The vulnerability identified as CVE-2021-36298 affects Dell EMC InsightIQ software versions prior to 4.1.4, specifically targeting the Secure Shell component that handles remote access and authentication. This issue represents a critical security flaw that undermines the cryptographic integrity of the system's authentication mechanisms. The vulnerability stems from the use of weak or deprecated cryptographic algorithms within the SSH implementation, creating an exploitable weakness that adversaries can leverage without requiring authentication credentials. The affected system operates as a monitoring and analytics platform that provides insights into storage systems, making it a potentially attractive target for attackers seeking persistent access to enterprise storage environments. The presence of insecure cryptographic practices in the SSH component directly violates industry standards and best practices for secure remote access implementations.
The technical flaw manifests through the implementation of outdated or insufficiently secure cryptographic protocols within the SSH subsystem of InsightIQ. This weakness allows an unauthenticated remote attacker to exploit the cryptographic vulnerabilities and potentially bypass the standard authentication mechanisms entirely. The vulnerability enables an attacker to establish unauthorized remote access to the InsightIQ system, effectively providing complete administrative control over the platform's services and functionality. The exploitation process typically involves leveraging known weaknesses in the cryptographic algorithm implementation to either decrypt communications, forge authentication tokens, or directly bypass the authentication process altogether. This type of vulnerability falls under the CWE-327 category for use of a broken cryptographic algorithm, which is classified as a serious weakness that can lead to complete system compromise. The attack vector requires no prior authentication, making it particularly dangerous as it can be exploited by any remote attacker with access to the network.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with complete control over the InsightIQ platform's SSH services and underlying system functionality. An attacker who successfully exploits this vulnerability can manipulate storage monitoring data, potentially altering system configurations, accessing sensitive monitoring information, or even disrupting storage operations through the compromised platform. The implications are particularly severe in enterprise environments where InsightIQ is used to monitor critical storage infrastructure, as the compromise could lead to data integrity issues, service disruptions, or provide attackers with additional footholds for lateral movement within the network. The vulnerability affects not just the immediate system but could potentially provide attackers with information that could be used to target other systems within the same storage infrastructure or network segment. This aligns with ATT&CK technique T1021.004 for SSH and remote login protocols, which emphasizes the exploitation of remote access services for privilege escalation and persistence.
Organizations affected by this vulnerability should prioritize immediate remediation through the upgrade to Dell EMC InsightIQ version 4.1.4 or later, which contains the necessary cryptographic fixes. The recommended mitigation strategy includes not only applying the software patch but also conducting comprehensive network monitoring to detect any potential exploitation attempts. Security teams should implement network segmentation to limit access to InsightIQ systems and monitor for unusual SSH connection patterns that might indicate exploitation attempts. Additionally, organizations should review their overall cryptographic practices and ensure that all SSH implementations use modern, secure cryptographic algorithms that comply with current security standards. The vulnerability serves as a reminder of the critical importance of maintaining up-to-date cryptographic implementations and the potential consequences of relying on deprecated or insecure cryptographic practices in network services. Organizations should also consider implementing additional security controls such as SSH key management policies, access logging, and regular security assessments to prevent similar vulnerabilities from emerging in other components of their infrastructure.