CVE-2023-44853 in SAILOR VSAT Ku
Summary
by MITRE • 04/12/2024
\An issue was discovered in Cobham SAILOR VSAT Ku v.164B019, allows a remote attacker to execute arbitrary code via a crafted script to the sub_219C4 function in the acu_web file.
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Analysis
by VulDB Data Team • 07/11/2024
The vulnerability identified as CVE-2023-44853 represents a critical remote code execution flaw within Cobham SAILOR VSAT Ku v.164B019 systems. This issue resides in the acu_web file and specifically targets the sub_219C4 function, creating a pathway for malicious actors to gain unauthorized control over affected devices. The vulnerability stems from insufficient input validation and sanitization mechanisms that fail to properly handle crafted script payloads, allowing attackers to inject and execute arbitrary code remotely without authentication. This flaw directly impacts the security posture of maritime communication systems that rely on Cobham VSAT equipment for critical operations, potentially compromising the integrity and availability of satellite communications infrastructure.
The technical nature of this vulnerability aligns with CWE-74 and CWE-94 categories, representing code injection flaws where user-controllable data is improperly validated before being processed by the system. The sub_219C4 function appears to lack proper parameter validation, enabling attackers to manipulate input parameters to trigger unintended code execution paths. The attack vector operates entirely over network protocols, requiring no physical access or prior authentication, making it particularly dangerous for operational technology environments. This vulnerability can be exploited through web-based interfaces that communicate with the affected system, leveraging the improperly sanitized inputs to inject malicious scripts that execute with the privileges of the web server process.
The operational impact of CVE-2023-44853 extends beyond simple code execution, as it can lead to complete system compromise and unauthorized access to sensitive maritime communications. Attackers could potentially intercept, modify, or disrupt critical satellite communications that support navigation, weather reporting, and emergency response systems for vessels operating in remote oceanic regions. The vulnerability's remote exploitability means that adversaries can target these systems from anywhere with network connectivity, creating significant risks for shipping companies, maritime authorities, and defense organizations that depend on reliable satellite communication infrastructure. This flaw also enables potential lateral movement within networks, as compromised VSAT systems could serve as launching points for attacks on connected enterprise systems.
Mitigation strategies for this vulnerability should prioritize immediate patching of affected Cobham SAILOR VSAT Ku systems through official firmware updates provided by the vendor. Network segmentation and access controls should be implemented to limit exposure of these systems to untrusted networks, while implementing web application firewalls to monitor and filter malicious traffic patterns. Security monitoring should include detection of unusual script execution patterns and anomalous network traffic originating from affected systems. Organizations should conduct comprehensive vulnerability assessments to identify all instances of the affected software and implement network-based intrusion detection systems to monitor for exploitation attempts. The remediation process must also include comprehensive testing of patches in controlled environments before deployment to ensure operational continuity, while maintaining detailed incident response procedures for potential exploitation events. This vulnerability demonstrates the critical importance of securing operational technology systems and the potential consequences of inadequate input validation in communication infrastructure components.