CVE-2020-5558 in CuteNews
Summary
by MITRE
CuteNews 2.0.1 allows remote authenticated attackers to execute arbitrary PHP code via unspecified vectors.
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Analysis
by VulDB Data Team • 05/11/2024
The vulnerability identified as CVE-2020-5558 affects CuteNews version 2.0.1, a content management system that has been widely deployed across various web environments. This authentication-based remote code execution flaw represents a critical security weakness that can be exploited by attackers who have gained legitimate credentials to the system. The vulnerability resides within the application's handling of user input and file processing mechanisms, creating a pathway for malicious code injection that bypasses normal security controls. The unspecified nature of the attack vectors suggests that multiple code paths within the application may be susceptible to manipulation, making the vulnerability particularly dangerous as it could be exploited through various means within the system's architecture.
The technical exploitation of this vulnerability occurs when authenticated users submit malicious input that gets processed by the CuteNews application without proper sanitization or validation. This allows attackers to inject PHP code that executes within the web server context, effectively granting them the ability to perform arbitrary operations on the underlying system. The flaw likely exists in how the application handles file uploads, user-generated content, or configuration parameters that are subsequently processed as PHP code. According to CWE classification, this vulnerability aligns with CWE-94, which describes "Improper Control of Generation of Code ('Code Injection')" and represents a direct path to remote code execution through user-controllable input. The attack vector demonstrates characteristics consistent with the ATT&CK framework's technique T1059.007, which involves the execution of code through PHP scripts, typically through command injection or code injection techniques.
The operational impact of CVE-2020-5558 extends far beyond simple data compromise, as successful exploitation can lead to complete system takeover and persistent access. Attackers can leverage this vulnerability to establish backdoors, exfiltrate sensitive data, deploy additional malware, or use the compromised system as a launching point for further attacks within the network infrastructure. The authenticated nature of the attack means that even a low-privilege user account could potentially be leveraged to gain elevated system access, making the vulnerability particularly concerning for environments where user access controls are not properly enforced. Organizations running CuteNews 2.0.1 are at risk of data breaches, service disruption, and potential regulatory compliance violations that could result in significant financial and reputational damage.
Mitigation strategies for CVE-2020-5558 should focus on immediate remediation through official vendor patches and updates, as well as implementing additional security controls to reduce the attack surface. Organizations should ensure that all users have the minimum necessary privileges and that proper input validation and sanitization mechanisms are in place throughout the application. Network segmentation and monitoring solutions should be deployed to detect unusual code execution patterns or unauthorized file uploads. Security teams should implement web application firewalls to filter potentially malicious payloads and establish strict access controls for user accounts. The vulnerability also highlights the importance of regular security assessments and vulnerability scanning to identify similar issues within other applications and systems within the organization's infrastructure. Additionally, implementing proper code review processes and adhering to secure coding practices can help prevent similar injection vulnerabilities from being introduced in future software development cycles.