CVE-2024-50919 in Jpress
Summary
by MITRE • 11/18/2024
Jpress until v5.1.1 has arbitrary file uploads on the windows platform, and the construction of non-standard file formats such as .jsp. can lead to arbitrary command execution
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Analysis
by VulDB Data Team • 11/18/2024
The vulnerability identified as CVE-2024-50919 affects Jpress versions prior to v5.1.1 and represents a critical security flaw that enables unauthorized arbitrary file uploads on Windows platforms. This vulnerability stems from insufficient input validation and file type checking mechanisms within the application's upload functionality, creating a pathway for attackers to bypass security controls and deploy malicious files. The issue specifically manifests on Windows systems where the application's file handling processes are more susceptible to exploitation due to the operating system's file extension interpretation and execution behaviors.
The technical exploitation of this vulnerability involves constructing non-standard file formats such as .jsp files during the upload process, which allows attackers to execute arbitrary commands on the target system. This type of attack leverages the inherent Windows file processing mechanisms where certain file extensions can trigger code execution without proper validation. The flaw operates at the application layer, specifically within the file upload and processing components, making it particularly dangerous as it can be exploited through standard web interfaces without requiring elevated privileges or specialized tools.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with persistent access to the target system and enables them to establish backdoors, exfiltrate sensitive data, or deploy additional malicious payloads. The ability to execute arbitrary commands through file uploads creates a complete compromise scenario where attackers can manipulate the application environment, escalate privileges, and maintain long-term access to the compromised system. This vulnerability affects organizations running Jpress on Windows infrastructure and can lead to data breaches, system infiltration, and potential lateral movement within network environments.
The vulnerability aligns with CWE-434, which describes insecure file upload conditions where applications accept untrusted files without proper validation, and can be mapped to ATT&CK technique T1190 for exploiting vulnerabilities in web applications. Organizations should immediately implement mitigations including updating to Jpress version 5.1.1 or later, implementing strict file type validation, restricting upload permissions, and monitoring file upload activities. Additional protective measures include deploying web application firewalls, implementing content security policies, and conducting regular security assessments to identify and remediate similar vulnerabilities in the application's file handling mechanisms.