CVE-2023-39405 in EMUI
Summary
by MITRE • 08/13/2023
Vulnerability of out-of-bounds parameter read/write in the Wi-Fi module. Successful exploitation of this vulnerability may cause other apps to be executed with escalated privileges.
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Analysis
by VulDB Data Team • 09/08/2023
This vulnerability resides within the wireless communication module of a device, specifically exposing an out-of-bounds parameter read/write condition that fundamentally compromises system integrity. The flaw manifests when the Wi-Fi module processes input parameters without proper validation, allowing malicious actors to manipulate memory access patterns beyond allocated boundaries. Such an issue directly relates to common weakness identifiers found in the CWE database under category 129 which encompasses out-of-bounds read/write conditions, and more specifically aligns with CWE-787 for out-of-bounds write operations. The vulnerability represents a critical security gap that enables privilege escalation attacks, where an attacker can leverage this weakness to execute arbitrary code with elevated permissions typically reserved for system-level processes.
The operational impact of this vulnerability extends beyond simple data corruption or application crashes, as it creates a pathway for persistent system compromise. When successfully exploited, the out-of-bounds access allows threat actors to manipulate critical system parameters and potentially overwrite memory segments containing executable code or security controls. This scenario enables attackers to gain unauthorized access to system resources while bypassing standard authentication and authorization mechanisms. The privilege escalation aspect of this vulnerability aligns with techniques documented in the MITRE ATT&CK framework under the privilege escalation tactic, specifically targeting the use of system services and modules to achieve elevated access levels. The compromised Wi-Fi module becomes a vector for broader system infiltration, potentially allowing attackers to establish backdoors, exfiltrate sensitive data, or deploy additional malware.
Mitigation strategies for this vulnerability must address both the immediate code-level issues and broader system security posture. Device manufacturers should implement comprehensive input validation mechanisms within the Wi-Fi module firmware, ensuring all parameter boundaries are strictly enforced before memory operations occur. The implementation of memory safety features such as stack canaries, address space layout randomization, and code integrity checks can significantly reduce exploitation success rates. Security patches should be prioritized for deployment across affected systems, particularly those handling sensitive communications or operating in high-risk environments. Network administrators must also consider network-level monitoring to detect anomalous Wi-Fi traffic patterns that could indicate exploitation attempts, while maintaining regular vulnerability assessments to identify similar weaknesses in other system components. The remediation approach should follow industry best practices outlined in standards such as ISO 27001 for information security management and NIST SP 800-53 for security controls, ensuring comprehensive protection against both current and emerging threats targeting wireless communication protocols.