CVE-2023-27318 in StorageGRID
Summary
by MITRE • 02/05/2024
StorageGRID (formerly StorageGRID Webscale) versions 11.6.0 through 11.6.0.13 are susceptible to a Denial of Service (DoS) vulnerability. A successful exploit could lead to a crash of the Local Distribution Router (LDR) service.
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Analysis
by VulDB Data Team • 02/29/2024
The CVE-2023-27318 vulnerability affects StorageGRID systems running versions 11.6.0 through 11.6.0.13, specifically targeting the Local Distribution Router service which serves as a critical component in the distributed storage architecture. This vulnerability represents a significant security concern as it enables remote attackers to induce a denial of service condition that can compromise the availability of storage services. The Local Distribution Router acts as a central routing entity within the StorageGRID ecosystem, managing data distribution and communication between various storage nodes, making its stability essential for overall system operation.
The technical flaw manifests through improper handling of specific input parameters or network requests that trigger an unhandled exception within the LDR service process. This typically occurs when the service receives malformed or specially crafted data packets that cause memory corruption or resource exhaustion, leading to the service crashing and requiring manual restart. The vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize or reject malicious payloads before processing them through the routing logic. This type of vulnerability aligns with CWE-129, which addresses improper validation of input ranges, and CWE-248, which covers exposure of an uninitialized variable that can lead to service disruption.
The operational impact of this vulnerability extends beyond simple service interruption as it can severely affect data availability and business continuity for organizations relying on StorageGRID for their storage infrastructure. When the LDR service crashes, it disrupts the routing of data packets between storage nodes, potentially causing cascading failures throughout the distributed storage network. This disruption can result in data access delays, failed storage operations, and in severe cases, complete loss of storage grid functionality until manual intervention occurs. The vulnerability is particularly concerning because it can be exploited remotely without requiring authentication, making it accessible to any attacker with network access to the affected system.
Organizations should prioritize immediate remediation by upgrading to StorageGRID versions that have addressed this vulnerability, typically those beyond 11.6.0.13. Network segmentation and access controls should be implemented to limit exposure of the affected services to trusted networks only. Monitoring should be enhanced to detect unusual patterns of service restarts or network traffic that might indicate exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and following the principle of least privilege in distributed storage environments. From an ATT&CK framework perspective, this vulnerability maps to T1499.004, which covers network denial of service attacks, and T1566.002, covering spearphishing via social media, as attackers might use social engineering to gain initial access before exploiting this service disruption vulnerability.