CVE-2022-28606 in BossCMS
Summary
by MITRE • 05/05/2022
An arbitrary file upload vulnerability exists in Wenzhou Huoyin Information Technology Co., Ltd. BossCMS 1.0, which can be exploited by an attacker to gain control of the server.
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Analysis
by VulDB Data Team • 05/08/2022
The CVE-2022-28606 vulnerability represents a critical arbitrary file upload flaw discovered in BossCMS 1.0, a content management system developed by Wenzhou Huoyin Information Technology Co., Ltd. This vulnerability falls under the category of insecure file handling within web applications and demonstrates a fundamental failure in input validation and file type restriction mechanisms. The flaw allows malicious actors to upload files to the server without proper authorization, potentially leading to complete system compromise and unauthorized access to sensitive data.
The technical implementation of this vulnerability stems from inadequate validation of file uploads within the CMS framework. Attackers can exploit this weakness by crafting malicious files with specific extensions or by bypassing existing upload restrictions through creative file naming or content manipulation techniques. The vulnerability likely exists in the file upload handler component where the application fails to properly verify file types, validate file contents, or enforce strict upload policies. This type of flaw is commonly classified as CWE-434, which specifically addresses insecure file upload vulnerabilities where applications accept files from untrusted sources without proper validation.
The operational impact of CVE-2022-28606 extends beyond simple unauthorized file placement on the server. Successful exploitation can lead to remote code execution, allowing attackers to execute arbitrary commands on the compromised system. This capability enables threat actors to establish persistent backdoors, exfiltrate sensitive information, or deploy additional malicious payloads. The vulnerability affects the confidentiality, integrity, and availability of the affected system, potentially resulting in complete system takeover. Organizations running BossCMS 1.0 are particularly at risk since this vulnerability can be exploited by attackers with minimal technical expertise, making it a high-priority concern for security teams.
Mitigation strategies for this vulnerability should include immediate implementation of strict file upload validation mechanisms, including MIME type checking, file extension filtering, and content-based verification. Organizations must ensure that all file uploads undergo comprehensive security scanning and that uploaded files are stored in non-executable directories. The principle of least privilege should be applied to file upload handlers, restricting their capabilities to only essential functions. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the web application stack. This vulnerability aligns with ATT&CK technique T1190, which covers exploiting vulnerabilities in web applications, and represents a critical area where defensive measures should focus on preventing unauthorized file operations and implementing robust input validation controls.