CVE-2018-10563 in SyncBreeze Enterprise
Summary
by MITRE
An XSS in Flexense SyncBreeze affects all versions (tested from SyncBreeze Enterprise from v10.1 to v10.7).
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Analysis
by VulDB Data Team • 02/02/2020
The vulnerability CVE-2018-10563 represents a cross-site scripting flaw discovered in Flexense SyncBreeze software, specifically affecting versions ranging from SyncBreeze Enterprise v10.1 through v10.7. This security weakness resides within the web interface of the synchronization tool, which is commonly used for file synchronization and backup operations across networked environments. The affected system operates as a file management solution that provides web-based administrative interfaces for monitoring and controlling file synchronization processes, making it a critical component in enterprise file management infrastructure.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding within the web application's user interface components. Attackers can exploit this flaw by injecting malicious script code through input fields or parameters that are not properly sanitized before being rendered in web pages. The vulnerability manifests when user-supplied data containing script tags or malicious JavaScript code is processed and displayed without adequate sanitization measures. This allows threat actors to execute arbitrary scripts within the context of authenticated users' browsers, potentially compromising session integrity and enabling further exploitation. The flaw is categorized under CWE-79 which specifically addresses cross-site scripting vulnerabilities in web applications, where improper validation of user input leads to execution of malicious code in client browsers.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform session hijacking, steal sensitive information, modify data within the application, or redirect users to malicious websites. In enterprise environments where SyncBreeze is deployed for critical file synchronization tasks, this vulnerability creates a significant risk for unauthorized access to file management systems. The affected versions include multiple iterations of the SyncBreeze Enterprise platform, indicating a widespread exposure across the product line. Attackers can leverage this vulnerability to gain unauthorized access to file synchronization configurations, potentially accessing sensitive backup data or compromising the integrity of synchronization operations. The attack surface is particularly concerning given that SyncBreeze is designed for enterprise use cases where it handles critical business data and may be accessible from external networks.
Security mitigation strategies for CVE-2018-10563 should include immediate implementation of input validation and output encoding measures to prevent script injection attacks. Organizations should apply the vendor-provided patches or updates released to address this vulnerability, as Flexense would have issued security updates to remediate the XSS flaw. Network segmentation and access controls should be implemented to limit exposure of the web interface to trusted users only, while also employing web application firewalls to filter malicious traffic. The remediation process should include comprehensive testing of input validation mechanisms and regular security assessments to ensure that similar vulnerabilities do not exist in other components of the system. Additionally, security awareness training for administrators should emphasize the importance of keeping software updated and monitoring for potential exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving initial access through web application exploitation and privilege escalation through session manipulation, making it a significant concern for organizations implementing defensive security measures.