CVE-2025-32744 in AppSync
Summary
by MITRE • 07/21/2025
Dell AppSync, version(s) 4.6.0.0, contains an Unrestricted Upload of File with Dangerous Type vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Remote execution.
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Analysis
by VulDB Data Team • 08/07/2025
The vulnerability identified as CVE-2025-32744 affects Dell AppSync version 4.6.0.0 and represents a critical security flaw categorized under CWE-434 Unrestricted Upload of File with Dangerous Type. This vulnerability exists within the file upload functionality of the application where proper validation and sanitization mechanisms are absent or insufficient. The flaw allows an attacker with high privileges and remote access capabilities to upload malicious files that can execute arbitrary code on the target system. The vulnerability stems from the application's failure to properly verify file types and contents during the upload process, creating an avenue for attackers to bypass security controls and potentially gain complete control over the affected system. The risk is amplified by the fact that the vulnerability requires only high privileged access, suggesting that it may be exploited through compromised administrative accounts or other elevated privilege vectors.
The technical exploitation of this vulnerability involves an attacker uploading a malicious file with a dangerous file type that the application accepts without proper validation. This could include executable files, scripts, or other potentially harmful file formats that the application's upload mechanism does not adequately restrict. When the system processes these uploaded files, the malicious code can be executed with the privileges of the application, potentially leading to full system compromise. The remote execution capability indicates that the attacker does not need physical access to the system and can exploit this vulnerability over the network. This type of vulnerability is particularly dangerous in enterprise environments where administrative accounts may have broad system access and where the application may be exposed to external networks. The vulnerability's classification as high severity reflects the potential for complete system compromise and the relative ease with which it can be exploited by an attacker with sufficient privileges.
The operational impact of this vulnerability extends beyond immediate system compromise to include potential data exfiltration, lateral movement within the network, and establishment of persistent access points. An attacker who successfully exploits this vulnerability could use the compromised system as a foothold for further attacks against other systems within the network. The vulnerability affects the integrity and confidentiality of the entire Dell AppSync deployment, potentially exposing sensitive organizational data and undermining the security posture of the enterprise. The risk is particularly concerning because it allows for remote code execution, which means that attackers can maintain persistent access without requiring physical presence or additional network penetration efforts. Organizations using this version of Dell AppSync should consider this vulnerability as a critical threat that requires immediate attention and remediation to prevent potential security breaches.
Organizations should implement immediate mitigations including updating to the latest version of Dell AppSync that addresses this vulnerability, implementing strict file type validation, and restricting upload permissions to only essential administrative users. Network segmentation and monitoring should be enhanced to detect suspicious file upload activities and potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1195.001 for the use of malicious file uploads and may also relate to T1059 for command and scripting interpreter usage. Regular security assessments and vulnerability scanning should be conducted to identify similar issues within the application stack. Additionally, organizations should consider implementing web application firewalls and content filtering mechanisms to prevent unauthorized file uploads and provide additional layers of defense against this type of attack vector.