CVE-2023-32527 in Mobile Security for Enterprise
Summary
by MITRE • 06/27/2023
Trend Micro Mobile Security (Enterprise) 9.8 SP5 contains vulnerable .php files that could allow a remote attacker to execute arbitrary code on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. This is similar to, but not identical to CVE-2023-32528.
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Analysis
by VulDB Data Team • 07/15/2023
The vulnerability identified as CVE-2023-32527 affects Trend Micro Mobile Security Enterprise version 9.8 SP5, representing a critical remote code execution flaw that could enable attackers to gain full control over affected systems. This vulnerability resides within vulnerable php files that form part of the mobile security solution's web interface, creating an attack surface that could be exploited by malicious actors. The flaw specifically allows remote code execution when combined with a pre-existing low-privileged code execution capability on the target system, making it a particularly dangerous vulnerability in environments where attackers might have already gained some foothold through other means. The vulnerability's classification aligns with CWE-94, which describes improper control of generation of code, specifically when code is generated or executed based on user-supplied input without proper validation or sanitization. The attack vector requires an initial compromise to establish a low-privileged execution context, which then serves as a stepping stone for the exploitation of this remote code execution vulnerability.
The technical implementation of this vulnerability stems from inadequate input validation within the php components of the Trend Micro Mobile Security Enterprise solution. When the system processes user-supplied data through vulnerable php files, it fails to properly sanitize or validate the input parameters, allowing malicious code to be injected and subsequently executed within the context of the web server. This type of vulnerability typically occurs when developers do not properly implement security controls such as input sanitization, output encoding, or proper access controls within their web applications. The exploitation requires an attacker to first establish a foothold on the system through some other means, such as phishing attacks, unpatched software vulnerabilities, or social engineering techniques, before leveraging CVE-2023-32527 to escalate privileges and execute arbitrary commands with the privileges of the web server process. The operational impact is severe as successful exploitation could lead to complete system compromise, data exfiltration, and potential lateral movement within the network. According to ATT&CK framework, this vulnerability maps to T1059.007 for the execution of code through web shells and T1566 for initial access through the exploitation of web application vulnerabilities, with the remote code execution capability representing a direct path to privilege escalation and persistent access.
Organizations running Trend Micro Mobile Security Enterprise 9.8 SP5 must implement immediate mitigations to protect against this vulnerability. The primary recommendation involves applying the latest security patches and updates provided by Trend Micro to address the identified php file vulnerabilities. System administrators should also implement network segmentation and access controls to limit exposure of the vulnerable web interface to trusted networks only. Additional protective measures include implementing web application firewalls to monitor and filter traffic to the vulnerable php endpoints, conducting thorough network monitoring for suspicious activities, and performing regular vulnerability assessments to identify similar issues in other components of the security infrastructure. The vulnerability's similarity to CVE-2023-32528 indicates that Trend Micro Mobile Security Enterprise may contain multiple related vulnerabilities within its web interface components, warranting comprehensive security reviews of the entire application suite. Security teams should also consider implementing behavioral analysis tools to detect anomalous code execution patterns that might indicate exploitation attempts, while maintaining detailed logging of web application activities for forensic analysis purposes. Given the nature of this vulnerability and its potential for privilege escalation, organizations should also review their incident response procedures to ensure rapid detection and containment of potential exploitation attempts. The vulnerability's requirement for a pre-existing low-privileged execution context means that organizations should also focus on strengthening their overall security posture through regular patch management, user education, and implementation of defense-in-depth strategies to prevent initial compromise.