CVE-2022-23233 in StorageGRID Webscale
Summary
by MITRE • 03/04/2022
StorageGRID (formerly StorageGRID Webscale) versions prior to 11.6.0 are susceptible to a vulnerability which when successfully exploited could lead to Denial of Service (DoS) of the Local Distribution Router (LDR) service.
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Analysis
by VulDB Data Team • 03/09/2022
The vulnerability identified as CVE-2022-23233 affects StorageGRID systems prior to version 11.6.0, specifically targeting the Local Distribution Router service which serves as a critical component in the distributed storage architecture. This issue represents a significant security concern as it enables an attacker to potentially disrupt the availability of core storage services through a denial of service attack. The Local Distribution Router acts as an intermediary for data routing and distribution within the StorageGRID environment, making its compromise particularly impactful for enterprise storage infrastructures. The vulnerability manifests in the way the system handles certain network requests or processing flows within the LDR service, creating an exploitable condition that can be leveraged to cause service disruption.
The technical flaw underlying CVE-2022-23233 stems from improper handling of input validation or resource management within the LDR service implementation. This weakness allows malicious actors to craft specific requests or conditions that trigger unexpected behavior in the service, leading to resource exhaustion, process termination, or other failure states that prevent normal operation. The vulnerability can be classified under CWE-400 as an unchecked resource allocation or resource leak, where the system fails to properly manage or limit the resources consumed by the LDR service during processing. Attackers can exploit this weakness by sending carefully constructed network traffic or data payloads that cause the LDR service to enter a state where it becomes unresponsive or crashes entirely, effectively rendering the storage grid's routing capabilities unavailable.
The operational impact of this vulnerability extends beyond simple service interruption, as it can severely affect business continuity and data availability for organizations relying on StorageGRID for their storage infrastructure. When the Local Distribution Router service becomes unavailable, it can cascade through the entire StorageGRID deployment, affecting data access, replication processes, and overall system performance. The disruption can be particularly damaging in mission-critical environments where continuous data availability is essential, potentially leading to extended downtime periods that impact productivity and service delivery. Organizations may experience difficulties in accessing stored data, with backup and recovery processes potentially compromised if the LDR service failures affect the broader storage grid architecture.
Mitigation strategies for CVE-2022-23233 primarily focus on upgrading to StorageGRID version 11.6.0 or later, which contains the necessary patches and fixes to address the vulnerability. Organizations should also implement network segmentation and access controls to limit exposure of the affected services to untrusted networks, reducing the attack surface available to potential adversaries. Monitoring and logging capabilities should be enhanced to detect unusual patterns in LDR service behavior or resource consumption that might indicate exploitation attempts. Network administrators should consider implementing rate limiting and input validation controls at network boundaries to prevent malicious requests from reaching vulnerable components. The vulnerability aligns with ATT&CK technique T1499.004 for network denial of service, where adversaries target network infrastructure components to disrupt availability. Organizations should also conduct regular vulnerability assessments and penetration testing to identify and remediate similar weaknesses in their storage infrastructure deployments.