CVE-2020-4100 in HCL Verse
Summary
by MITRE
"HCL Verse for Android was found to employ dynamic code loading. This mechanism allows a developer to specify which components of the application should not be loaded by default when the application is started. Typically, core components and additional dependencies are loaded natively at runtime; however, dynamically loaded components are only loaded as they are specifically requested. While this can have a positive impact on performance, or grant additional functionality (for example, a non-invasive update feature), it can also open the application to loading unintended code if not implemented properly."
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Analysis
by VulDB Data Team • 07/16/2020
The vulnerability identified in CVE-2020-4100 affects HCL Verse for Android, a mobile collaboration platform that leverages dynamic code loading mechanisms to enhance application performance and functionality. This security weakness stems from the application's implementation of runtime component loading where certain modules are only loaded upon specific request rather than during initial application startup. The dynamic loading capability, while beneficial for optimizing memory usage and enabling features like non-invasive updates, creates a potential attack surface when proper validation and security controls are not implemented. The vulnerability specifically arises from the lack of proper sanitization or verification of dynamically loaded components, which could allow malicious actors to inject unauthorized code into the application runtime environment.
The technical flaw manifests in the application's failure to adequately validate or authenticate dynamically loaded components before execution. When applications employ dynamic code loading, they typically load additional modules or libraries at runtime based on specific conditions or user interactions. In the case of HCL Verse for Android, this mechanism appears to be improperly secured, allowing for potential code injection attacks where attackers could manipulate the loading process to execute malicious code. The vulnerability essentially creates a pathway where untrusted code could be loaded and executed within the application context, potentially leading to complete compromise of the mobile device. This issue aligns with CWE-472, which addresses external control of code generation or execution, and represents a classic example of insecure dynamic code execution vulnerabilities.
The operational impact of this vulnerability extends beyond simple application instability or performance degradation, as it presents a significant security risk to end users and organizations utilizing the HCL Verse platform. Mobile devices running the vulnerable application could become compromised through various attack vectors including malicious attachments, compromised network communications, or social engineering campaigns that exploit the dynamic loading mechanism. Attackers could potentially execute arbitrary code with the privileges of the application, leading to data theft, unauthorized access to corporate networks, or further lateral movement within the target environment. The vulnerability's impact is particularly concerning given that mobile applications often handle sensitive corporate data and maintain persistent connections to enterprise systems, making them attractive targets for sophisticated adversaries. This weakness could enable attackers to establish persistent backdoors, exfiltrate confidential information, or use the compromised device as a pivot point for attacking other systems within the organization's network.
Mitigation strategies for CVE-2020-4100 should focus on implementing robust validation mechanisms for all dynamically loaded components within the HCL Verse for Android application. Organizations should ensure that all dynamically loaded code undergoes strict integrity checks, including cryptographic verification of component signatures before execution. The implementation of secure coding practices should include input sanitization, proper component authentication, and runtime monitoring of loaded modules to detect unauthorized code injection attempts. Security controls should also encompass the enforcement of least privilege principles for dynamically loaded components, ensuring that only necessary and verified modules are permitted to execute within the application context. Additionally, regular security assessments and penetration testing should be conducted to validate the effectiveness of implemented controls. From an ATT&CK perspective, this vulnerability relates to techniques such as T1059.007 for dynamic code loading and T1071.004 for application layer protocols, making it a critical concern for organizations implementing mobile device management policies and enterprise security frameworks.