CVE-2023-47584 in V-Server
Summary
by MITRE • 11/15/2023
Out-of-bounds write vulnerability exists in V-Server V4.0.18.0 and earlier and V-Server Lite V4.0.18.0 and earlier. If a user opens a specially crafted VPR file, information may be disclosed and/or arbitrary code may be executed.
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Analysis
by VulDB Data Team • 12/10/2023
The vulnerability identified as CVE-2023-47584 represents a critical out-of-bounds write flaw affecting V-Server software versions 4.0.18.0 and earlier, including both the standard V-Server and V-Server Lite variants. This issue stems from inadequate input validation within the VPR file parsing mechanism, which processes video recording files used by the software for playback and management purposes. The vulnerability manifests when the application attempts to write data beyond the allocated memory boundaries while processing malformed VPR files, creating a potential vector for both information disclosure and remote code execution.
From a technical perspective, the out-of-bounds write vulnerability occurs during the parsing of VPR file structures where the application fails to properly validate array indices or buffer limits before writing data. This flaw aligns with CWE-787, which specifically addresses out-of-bounds writes in software systems, and represents a common class of memory safety issues that can be exploited through carefully crafted input data. The vulnerability is particularly concerning because VPR files are typically used for legitimate video recording and playback operations, making this attack vector potentially accessible through social engineering or automated exploitation of vulnerable systems.
The operational impact of this vulnerability extends beyond simple system compromise, as it enables attackers to potentially disclose sensitive information stored within the application's memory space while simultaneously providing a pathway for arbitrary code execution. This dual nature of the vulnerability means that an attacker could gain unauthorized access to the system, potentially escalating privileges or establishing persistent access through the execution of malicious code. The vulnerability affects systems where V-Server software is deployed for video management, making it particularly relevant in enterprise environments where such software is used for surveillance or recording purposes.
Security professionals should consider this vulnerability in the context of the ATT&CK framework, specifically under techniques related to execution through legitimate system processes and privilege escalation. The vulnerability's exploitation could potentially align with techniques such as process injection or code injection, where malicious payloads are executed within the context of the legitimate V-Server process. Organizations should prioritize patching affected systems immediately, as the vulnerability's exploitation can occur through simple file opening operations, making it particularly dangerous in environments where users may encounter malicious VPR files through email attachments or other common attack vectors. The remediation strategy should include immediate software updates to versions beyond 4.0.18.0, along with network segmentation and file validation policies to prevent unauthorized VPR file execution.