CVE-2020-9129 in Mate 30
Summary
by MITRE • 11/13/2020
HUAWEI Mate 30 versions earlier than 10.1.0.159(C00E159R7P2) have a vulnerability of improper buffer operation. Due to improper restrictions, local attackers with high privileges can exploit the vulnerability to cause system heap overflow.
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Analysis
by VulDB Data Team • 12/07/2020
The vulnerability identified as CVE-2020-9129 affects Huawei Mate 30 devices running firmware versions prior to 10.1.0.159(C00E159R7P2) and represents a critical buffer operation flaw that exposes the device to heap overflow conditions. This vulnerability stems from inadequate input validation and memory management controls within the device's operating system, creating a pathway for exploitation that could compromise system stability and security. The flaw specifically manifests in the improper handling of buffer operations, where the system fails to adequately enforce bounds checking mechanisms that would normally prevent memory corruption scenarios.
The technical implementation of this vulnerability involves a heap overflow condition that occurs when the system processes certain data inputs without proper boundary verification. This type of flaw falls under the CWE-121 category of stack-based buffer overflow, though in this case it manifests as a heap-based vulnerability due to the nature of the memory allocation patterns in the affected system. The improper restrictions allow malicious code to overwrite adjacent memory locations within the heap, potentially leading to arbitrary code execution or system crashes. Attackers with high privilege local access can leverage this vulnerability to manipulate memory structures in ways that were not intended by the system design, effectively bypassing normal security boundaries.
From an operational perspective, this vulnerability presents significant risks to device users and organizations relying on Huawei Mate 30 devices for business operations. The heap overflow condition creates potential for persistent system instability, data corruption, and unauthorized access to sensitive information stored within the device's memory. The requirement for local high-privilege access somewhat limits the attack surface, but this does not diminish the severity of the impact, particularly in enterprise environments where privileged accounts may be compromised. The vulnerability could enable attackers to escalate privileges, install malicious software, or extract confidential data from the device, making it a serious concern for organizations implementing mobile device management strategies.
The exploitation of this vulnerability aligns with tactics described in the MITRE ATT&CK framework under the technique of privilege escalation and memory corruption. Specifically, the attack pattern corresponds to T1068 (Local Port Scan) and T1059 (Command and Scripting Interpreter) as attackers may use the heap overflow to establish persistent access or execute malicious payloads. Security professionals should consider this vulnerability in their threat modeling exercises, particularly when assessing the risk of insider threats or compromised administrative accounts. The vulnerability also demonstrates the importance of proper input validation and memory management practices in mobile operating systems, as outlined in industry best practices for secure coding standards.
Mitigation strategies for CVE-2020-9129 should prioritize immediate firmware updates to the affected Huawei Mate 30 devices, ensuring that users upgrade to version 10.1.0.159(C00E159R7P2) or later. Organizations should implement comprehensive device management policies that enforce automatic security updates and regularly monitor for vulnerable device populations. Network administrators should consider implementing additional security controls such as mobile device management solutions that can detect and isolate potentially compromised devices. Regular security assessments should include verification of device firmware versions and identification of any remaining vulnerable endpoints within the organization's infrastructure. The vulnerability also underscores the importance of maintaining up-to-date threat intelligence feeds and security patches to prevent exploitation of known vulnerabilities in mobile device operating systems.