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Vinchin Backup And Recovery 7.2 SystemHandler.class.php Command Injection Vulnerability
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[Security Risk High
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CVE ID: CVE-2024-22903 Title: Command Injection Vulnerability in SystemHandler.class.php of Vinchin Backup & Recovery Versions 7.2 and Earlier Description: A significant security vulnerability, CVE-2024-22903, has been identified in the `deleteUpdateAPK` function within the `SystemHandler.class.php` file of Vinchin Backup & Recovery software, affecting versions 7.2 and earlier. This function, designed to delete APK files, is prone to a command injection vulnerability due to improper handling of input parameters. Function Analysis: - The function extracts `md5` and `file_name` parameters from user input. - It includes a check for an empty `file_name`, but lacks adequate validation or sanitization for the input used in constructing system commands. - The command to delete the specified APK file, built using the `file_name` parameter, is executed via the `exec` function, leading to a security vulnerability. Exploitation Risk: Attackers can exploit this flaw by inserting malicious commands in the `file_name` parameter. When this parameter is processed by the vulnerable function, the injected commands are executed on the server, presenting a severe risk of unauthorized access or control. Current Status: As of the latest information, there is no known patch available for this vulnerability in versions 7.2 and earlier of Vinchin Backup & Recovery. Recommendation: Users are urged to be vigilant and to monitor Vinchin for any security updates. Until a patch is released, implementing additional security controls and closely monitoring system activity is crucial for mitigating the risk posed by this vulnerability. Signed,Valentin Lobstein # 0day.today [2024-11-15] #