CVE-2025-3773 in System Information Reporter
Summary
by MITRE • 06/26/2025
A sensitive information exposure vulnerability in System Information Reporter (SIR) 1.0.3 and prior allows an authenticated non-admin local user to extract sensitive information stored in a registry backup folder.
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Analysis
by VulDB Data Team • 02/11/2026
The vulnerability identified as CVE-2025-3773 represents a critical sensitive information exposure flaw within the System Information Reporter (SIR) version 1.0.3 and earlier implementations. This security weakness specifically affects local users who possess authentication credentials but lack administrative privileges, creating a significant risk for unauthorized information disclosure. The vulnerability stems from improper access controls and inadequate privilege separation mechanisms within the system's registry backup folder structure, allowing malicious actors with standard user accounts to access sensitive data that should be restricted to authorized administrative personnel only.
The technical root cause of this vulnerability lies in the insufficient authorization checks implemented by the SIR application when accessing registry backup directories. According to CWE-284, this represents an improper access control issue where the system fails to properly enforce access restrictions on sensitive data repositories. The flaw manifests when authenticated users attempt to navigate to registry backup folders that contain system-critical information, including but not limited to configuration settings, user credentials, system identifiers, and other confidential operational data. The vulnerability operates at the file system level where proper discretionary access controls are not enforced, allowing local users to traverse directories they should not have access to based on their role and privileges.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with potentially valuable data that could facilitate further exploitation attempts. The exposed registry backup information may contain system configuration details, service account credentials, network settings, and other sensitive metadata that could be leveraged for privilege escalation, lateral movement, or system compromise. Attackers could use this information to understand system architecture, identify potential attack vectors, or craft more sophisticated attacks against other system components. The vulnerability is particularly concerning because it requires minimal privileges to exploit, making it accessible to any authenticated user within the system rather than requiring elevated administrative rights.
Security professionals should implement immediate mitigations including restrictive access control policies for registry backup directories, ensuring that only authorized administrative accounts can access sensitive system data. The system should enforce proper discretionary access controls using file permissions and access control lists that prevent unauthorized users from accessing backup folders containing sensitive information. Additionally, implementing principle of least privilege principles for all system accounts and regular security audits of file system permissions will help detect and prevent unauthorized access to sensitive data repositories. Organizations should also consider implementing monitoring solutions that can detect unusual access patterns to backup directories and alert security teams to potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1003 which covers OS credential dumping, as the exposed registry information could potentially be used to extract credentials and other sensitive system data. Regular patch management and version control processes should be implemented to ensure all systems running SIR are updated to versions that address this access control weakness.