CVE-2022-24262 in GUI
Summary
by MITRE • 02/04/2022
The config restore function of Voipmonitor GUI before v24.96 does not properly check files sent as restore archives, allowing remote attackers to execute arbitrary commands via a crafted file in the web root.
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Analysis
by VulDB Data Team • 02/07/2022
The vulnerability identified as CVE-2022-24262 affects the Voipmonitor GUI application prior to version 24.96, specifically within its configuration restore functionality. This issue represents a critical security flaw that enables remote attackers to execute arbitrary commands on the affected system through manipulation of restore archives. The vulnerability stems from inadequate input validation and sanitization mechanisms within the file processing pipeline of the configuration restoration feature. Attackers can craft malicious archive files containing specially designed payloads that bypass normal validation checks, ultimately leading to unauthorized command execution in the context of the web server process.
The technical implementation of this vulnerability aligns with CWE-434, which describes insecure file upload or download scenarios where applications fail to properly validate or sanitize file content before processing. The flaw occurs during the archive extraction and restoration process where the system does not adequately verify the integrity or content of files being restored. This allows attackers to place executable scripts or malicious code within the archive that gets executed when the restore function processes the malicious content. The vulnerability is particularly dangerous because it operates within the web root directory context, meaning that successful exploitation can result in complete system compromise without requiring additional privileges or authentication.
Operationally, this vulnerability poses significant risks to organizations utilizing Voipmonitor GUI systems, as it provides a direct path for remote code execution without user interaction. The impact extends beyond simple command execution to potentially allow attackers to establish persistent access, escalate privileges, or deploy additional malware. The attack vector is particularly concerning given that the vulnerability exists in a web-based interface, making it accessible to remote attackers over the network. Organizations running vulnerable versions may experience unauthorized data access, system compromise, or complete service disruption. The vulnerability also creates opportunities for attackers to use the compromised system as a launching point for further attacks within the network infrastructure.
Mitigation strategies for CVE-2022-24262 should prioritize immediate patching of the Voipmonitor GUI application to version 24.96 or later, which contains the necessary fixes for proper file validation. Organizations should implement additional network segmentation measures to limit access to the Voipmonitor GUI interface, particularly restricting access to authorized administrative users only. Input validation should be strengthened through comprehensive file type checking, content scanning, and proper file extension filtering before any restoration process is initiated. Security monitoring should be enhanced to detect suspicious file upload activities and unusual command execution patterns within the web server environment. The implementation of principle of least privilege should ensure that the web server process runs with minimal required permissions, limiting potential damage from successful exploitation. Additionally, regular security audits of web applications should include thorough review of file handling processes to identify similar vulnerabilities that may exist in other components of the system.