CVE-2025-47357 in Snapdragon Auto
Summary
by MITRE • 11/04/2025
Information Disclosure when a user-level driver performs QFPROM read or write operations on Fuse regions.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 11/04/2025
This vulnerability involves a critical information disclosure issue within user-level driver operations that interface with QFPROM (QuickFlash Program and Read-Only Memory) hardware components. The flaw manifests when drivers perform read or write operations on fuse regions, which are typically used for storing permanent device configuration data, security keys, and other sensitive information. These fuse regions are designed to be immutable or semi-immutable storage areas that contain critical device parameters and cryptographic material essential for secure device operation. The vulnerability arises from insufficient access controls and validation mechanisms within the driver implementation that allows unauthorized access to these protected memory regions.
The technical implementation flaw stems from inadequate privilege checking and memory boundary validation during QFPROM operations. When user-level drivers execute read or write commands on fuse regions, the system fails to properly verify whether the requesting process has appropriate authorization levels to access these sensitive areas. This represents a direct violation of the principle of least privilege and demonstrates a weakness in the kernel-mode driver architecture. The vulnerability can be exploited through malicious user applications that can directly invoke the affected driver interfaces, potentially bypassing normal security boundaries that should protect these critical memory regions from unauthorized access. This issue falls under CWE-284 Access Control and is closely related to CWE-310 Cryptographic Issues.
The operational impact of this vulnerability is severe as it can lead to complete compromise of device security and integrity. Attackers can extract sensitive information such as device serial numbers, cryptographic keys, security parameters, and other proprietary data stored in the fuse regions. This information can then be used to forge device identities, decrypt communications, or perform advanced attacks against the device's security model. The disclosure of such information can undermine the entire security architecture of the device, making it vulnerable to cloning, reverse engineering, and other sophisticated attacks. This vulnerability can be particularly devastating in IoT devices, automotive systems, or embedded security appliances where fuse regions contain critical security credentials.
Mitigation strategies should focus on implementing robust access control mechanisms within the driver layer, enforcing strict privilege validation before allowing QFPROM operations, and establishing proper memory boundary checking for all fuse region accesses. System administrators should ensure that only trusted, signed drivers can access these sensitive interfaces and that appropriate kernel-level security features are enabled. The implementation should include proper validation of user-space requests, enforcement of mandatory access controls, and monitoring of suspicious access patterns. Additionally, regular security audits of driver code should be conducted to identify similar privilege escalation vulnerabilities. This vulnerability aligns with attack techniques described in the ATT&CK framework under T1068 Local Privilege Escalation and T1552 Credential Access, where adversaries attempt to access protected system information through driver-level vulnerabilities. Organizations should also implement device integrity monitoring and establish incident response procedures to detect potential exploitation attempts.