CVE-2019-5265 in P30
Summary
by MITRE
Huawei Share function in P30 9.1.0.193(C00E190R2P1) smartphone has an improper access control vulnerability. The function incorrectly controls certain access messages, attackers can simulate a sender to steal P2P network information. Successful exploit may cause information leakage.
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Analysis
by VulDB Data Team • 03/16/2024
The vulnerability identified as CVE-2019-5265 affects Huawei's Share function implemented in P30 smartphones running firmware version 9.1.0.193(C00E190R2P1). This represents a critical access control flaw that undermines the security of peer-to-peer network communications within the device's ecosystem. The Huawei Share functionality is designed to facilitate seamless file transfer and device connectivity between Huawei smartphones, but this vulnerability creates a significant breach in the authorization mechanisms that should protect these communications.
The technical flaw manifests through improper access control implementation within the Share function's message handling system. Specifically, the vulnerability allows attackers to manipulate the access control mechanisms that govern how messages are processed and validated between devices. This weakness stems from insufficient validation of sender authenticity and message integrity checks within the P2P communication framework. The flaw enables malicious actors to craft and transmit spoofed access messages that appear legitimate to the target device's Share function, effectively bypassing the intended authorization protocols.
From an operational impact perspective, successful exploitation of this vulnerability can lead to substantial information disclosure risks within the P2P network environment. Attackers can simulate legitimate senders and gain unauthorized access to network information that should remain protected, potentially including device identifiers, communication metadata, and potentially sensitive user data transmitted through the Share function. This compromise extends beyond simple data theft to include potential network reconnaissance activities that could enable further attacks on connected devices or user accounts.
The vulnerability aligns with CWE-284, which addresses improper access control issues in software systems, and represents a clear violation of the principle of least privilege. From an adversary perspective, this vulnerability maps to ATT&CK technique T1071.004 for application layer protocol usage and T1046 for network service scanning, as attackers could leverage the compromised Share function to discover and exploit additional network resources. The attack vector involves crafting malicious messages that exploit the weak access control implementation, requiring minimal privileges but potentially enabling extensive information gathering.
Mitigation strategies should focus on implementing robust message authentication mechanisms and strengthening the access control validation processes within the Share function. Device manufacturers should enforce proper sender verification protocols and implement cryptographic signatures for all access messages to prevent spoofing attacks. Network segmentation and monitoring solutions should be deployed to detect anomalous Share function activities that might indicate exploitation attempts. Regular firmware updates and security patches should be prioritized to address such vulnerabilities promptly. Additionally, users should be educated about the risks of connecting to unknown devices through the Share function and the importance of keeping their devices updated with the latest security patches.