CVE-2023-47576 in RELY-PCIe
Summary
by MITRE • 12/13/2023
An issue was discovered in Relyum RELY-PCIe 22.2.1 and RELY-REC 23.1.0 devices, allowing authenticated command injection through the web interface.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 01/04/2024
The vulnerability identified as CVE-2023-47576 represents a critical command injection flaw affecting Relyum RELY-PCIe 22.2.1 and RELY-REC 23.1.0 network security devices. This issue resides within the web interface component of these industrial network appliances, which are designed for enterprise security infrastructure and network monitoring applications. The affected devices operate as part of critical network defense systems, making this vulnerability particularly concerning from a cybersecurity perspective. The vulnerability allows authenticated attackers who have already gained access to the device's web interface to execute arbitrary commands with the privileges of the web application user, potentially escalating to system-level access depending on the device configuration and implementation details.
The technical flaw manifests through improper input validation and sanitization within the web interface's parameter handling mechanisms. Attackers can manipulate input fields or parameters through the authenticated web interface to inject malicious commands that get executed by the underlying system shell. This vulnerability falls under the CWE-77 category of Command Injection, which is classified as a high-severity weakness in the Common Weakness Enumeration catalog. The flaw specifically affects how the device processes user-supplied data within the web management interface, failing to properly escape or validate command parameters before passing them to system execution functions. The injection occurs during the processing of administrative commands or configuration parameters, where user input directly influences system command execution paths.
The operational impact of this vulnerability extends beyond simple privilege escalation to potentially enable full system compromise of the affected network security appliances. An attacker with valid credentials could execute arbitrary commands on the device, potentially leading to unauthorized network access, data exfiltration, or disruption of network services. The vulnerability affects devices that typically operate in critical network infrastructure environments, where compromise could result in widespread security breaches or denial of service conditions. Given that these are industrial network security devices, the impact could extend to operational technology environments where network security is paramount for protecting critical infrastructure systems. The authenticated nature of the vulnerability means that it requires prior access to valid credentials, but once achieved, provides attackers with significant system control capabilities.
Mitigation strategies for CVE-2023-47576 should prioritize immediate firmware updates from Relyum to address the command injection vulnerability. Organizations should implement strict access controls and credential management policies to minimize the risk of unauthorized access to the web interface. Network segmentation and monitoring should be enhanced to detect anomalous command execution patterns that might indicate exploitation attempts. Security teams should conduct thorough vulnerability assessments of their network security infrastructure to identify potentially affected devices and ensure proper patch management procedures are in place. The ATT&CK framework categorizes this vulnerability under T1059.001 (Command and Scripting Interpreter: PowerShell) and T1059.003 (Command and Scripting Interpreter: Windows Command Shell), which are relevant to the exploitation techniques that could be employed. Additionally, implementing input validation controls and proper parameter sanitization in web applications aligns with security best practices outlined in NIST SP 800-160 and ISO/IEC 27001 standards for secure application development and system security management.