CVE-2022-28443 in UCMS
Summary
by MITRE • 04/22/2022
UCMS v1.6 was discovered to contain an arbitrary file deletion vulnerability.
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Analysis
by VulDB Data Team • 04/28/2022
The vulnerability identified as CVE-2022-28443 affects UCMS v1.6, a content management system that appears to be a web-based platform for managing digital content and website operations. This particular vulnerability manifests as an arbitrary file deletion flaw that could potentially allow unauthorized users to remove critical system files from the affected platform. The issue represents a significant security weakness in the application's file handling mechanisms and access control measures.
The technical flaw underlying this vulnerability stems from insufficient input validation and inadequate authorization checks within the UCMS application's file management functionality. When users interact with file deletion operations, the system fails to properly verify whether the requesting user has legitimate authorization to remove the specified files. This weakness creates an opportunity for attackers to manipulate file paths or deletion parameters, potentially enabling them to target and delete files outside of their intended scope. The vulnerability falls under the category of improper access control as defined by CWE-285, which specifically addresses issues where systems fail to properly enforce access restrictions on resources.
The operational impact of this arbitrary file deletion vulnerability extends beyond simple data loss scenarios. Attackers who exploit this weakness could potentially remove critical system files, configuration data, or even executable components that maintain the platform's functionality. This could result in complete system compromise, service disruption, or the creation of backdoor access points for further exploitation. The vulnerability's severity is amplified by the fact that it allows for deletion of arbitrary files, meaning that attackers could target not only user content but also system-critical components that maintain the platform's integrity and security posture.
Security professionals should consider this vulnerability in relation to the broader ATT&CK framework, particularly under the T1485 category of "Data Destruction" and T1059.001 for "Command and Scripting Interpreter" where attackers might leverage the deletion capability to remove forensic evidence or system protections. The vulnerability also aligns with ATT&CK's T1566.001 for "Phishing" as attackers might use social engineering tactics to gain initial access before exploiting this deletion capability. Organizations should implement comprehensive monitoring of file system activities and establish proper access controls to prevent unauthorized deletion operations.
Mitigation strategies for CVE-2022-28443 should include immediate patching of the UCMS v1.6 application to address the identified file deletion vulnerability. Additionally, organizations should implement strict input validation mechanisms that sanitize all file path parameters and enforce proper authorization checks before any file deletion operations. Network segmentation and access control lists should be configured to limit administrative privileges and restrict direct file system access. Regular security audits should verify that file deletion functions properly validate user permissions and implement proper logging of all file manipulation activities. The implementation of file integrity monitoring solutions can help detect unauthorized file deletions and provide early warning of potential exploitation attempts. Organizations should also consider implementing automated backup solutions that can quickly restore deleted files and maintain system availability during potential exploitation events.