CVE-2024-31818 in DerbyNet
Summary
by MITRE • 04/12/2024
Directory Traversal vulnerability in DerbyNet v.9.0 allows a remote attacker to execute arbitrary code via the page parameter of the kiosk.php component.
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Analysis
by VulDB Data Team • 04/12/2024
The directory traversal vulnerability identified as CVE-2024-31818 affects DerbyNet version 9.0 and represents a critical security flaw in the kiosk.php component that enables remote code execution through manipulation of the page parameter. This vulnerability stems from insufficient input validation and sanitization mechanisms within the application's parameter handling logic, creating an avenue for attackers to navigate beyond the intended directory structure and access arbitrary files on the server filesystem. The flaw specifically manifests when the application fails to properly validate or sanitize user-supplied input passed through the page parameter, allowing malicious actors to craft specially formatted requests that bypass normal access controls and directory restrictions.
The technical implementation of this vulnerability aligns with CWE-22, which categorizes directory traversal attacks as a fundamental weakness in input validation where insufficient checks permit unauthorized access to files and directories outside the intended scope. The attack vector operates by exploiting the application's failure to properly sanitize user input before using it in file system operations, enabling attackers to manipulate the page parameter to include directory traversal sequences such as "../" or similar constructs. This allows the attacker to navigate to parent directories and potentially access sensitive files including configuration files, database credentials, or other system resources that should remain protected from unauthorized access.
From an operational perspective, this vulnerability presents a severe risk to organizations utilizing DerbyNet v.9.0 as it provides a direct path to remote code execution capabilities. An attacker exploiting this vulnerability could potentially gain full system access, escalate privileges, and compromise the entire server infrastructure. The impact extends beyond simple file access as the ability to execute arbitrary code means that attackers could install backdoors, modify system configurations, exfiltrate sensitive data, or establish persistent access to the compromised environment. The vulnerability affects the kiosk.php component which typically serves as a public-facing interface, making it particularly dangerous as it requires no authentication to exploit and can be leveraged from any remote location.
The exploitation of CVE-2024-31818 follows patterns consistent with ATT&CK technique T1059.007 for command and scripting interpreter and T1078.004 for valid accounts, as attackers may use the executed code to establish persistence mechanisms or move laterally within the network. Organizations should implement immediate mitigations including input validation and sanitization of all user-supplied parameters, particularly those used in file system operations. The recommended defensive measures encompass updating to the latest patched version of DerbyNet, implementing proper parameter validation controls, and restricting file access permissions to minimize potential damage from successful exploitation attempts. Additionally, network monitoring should be enhanced to detect suspicious directory traversal patterns and parameter manipulation attempts that could indicate exploitation attempts against this vulnerability.