CVE-2025-30279 in File Station
Summary
by MITRE • 06/06/2025
An improper certificate validation vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to compromise the security of the system.
We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later
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Analysis
by VulDB Data Team • 09/17/2025
The vulnerability identified as CVE-2025-30279 represents a critical improper certificate validation flaw within File Station 5 software that poses significant security risks to affected systems. This weakness specifically targets the certificate validation mechanisms employed by the file sharing platform, creating an avenue for attackers to bypass normal security controls. The vulnerability's classification aligns with CWE-295, which addresses "Improper Certificate Validation" and represents a fundamental flaw in the cryptographic security infrastructure that applications rely upon for secure communications. The flaw exists in the way File Station 5 processes and validates SSL/TLS certificates during network operations, potentially allowing malicious actors to establish fraudulent connections or intercept sensitive data.
The exploitation of this vulnerability requires an attacker to first obtain legitimate user credentials through various means such as credential theft, social engineering, or other initial compromise techniques. Once authenticated, the attacker can leverage the certificate validation weakness to perform man-in-the-middle attacks or establish unauthorized connections to the file sharing system. This weakness creates a dangerous scenario where the system's ability to verify the authenticity of remote endpoints is compromised, potentially leading to data exfiltration, system compromise, or further lateral movement within the network. The vulnerability's impact extends beyond simple credential theft as it fundamentally undermines the trust model that secure file sharing protocols depend upon, making it particularly dangerous for enterprise environments where sensitive data is routinely transferred.
The operational impact of CVE-2025-30279 manifests in several critical areas including data integrity compromise, unauthorized access to file systems, and potential escalation of privileges within the affected environment. Organizations utilizing File Station 5 versions prior to 5.5.6.4847 face significant risk of unauthorized file access, data manipulation, and potential system takeover. The vulnerability's exploitation can result in complete loss of file system security, as attackers can bypass the certificate validation checks that are essential for maintaining secure communication channels. This weakness particularly affects environments where file sharing is critical for business operations, as it can lead to unauthorized access to proprietary information, intellectual property, or sensitive personal data. The attack surface is further expanded when considering that the vulnerability can be chained with other exploits to achieve more comprehensive system compromise.
Security professionals should prioritize immediate remediation of this vulnerability by upgrading to File Station 5 version 5.5.6.4847 or later, which contains the necessary patches to address the certificate validation flaw. The patch implementation addresses the root cause by strengthening the certificate validation logic and ensuring proper verification of SSL/TLS certificates during all network communications. Organizations should also implement additional monitoring measures to detect potential exploitation attempts, including network traffic analysis for unusual certificate validation patterns and anomalous authentication behavior. Security teams should consider implementing network segmentation and access controls to limit the potential impact of any successful exploitation attempts, while also ensuring that all user accounts maintain strong authentication mechanisms including multi-factor authentication. The vulnerability's remediation aligns with ATT&CK technique T1566, which covers credential harvesting and social engineering, as the initial compromise often involves gaining user access before exploiting this certificate validation weakness. Regular security assessments should be conducted to verify that the patch has been properly applied and that no other similar vulnerabilities exist within the File Station 5 ecosystem, ensuring comprehensive protection against similar threats.