CVE-2020-9108 in P30 Pro
Summary
by MITRE • 10/12/2020
HUAWEI P30 Pro versions earlier than 10.1.0.160(C00E160R2P8) have an out-of-bounds read and write vulnerability. An unauthenticated attacker crafts malformed message with specific parameter and sends the message to the affected products. Due to insufficient validation of message, which may be exploited to cause the process reboot.
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Analysis
by VulDB Data Team • 11/18/2020
The vulnerability identified as CVE-2020-9108 affects Huawei P30 Pro mobile devices running firmware versions prior to 10.1.0.160(C00E160R2P8). This represents a critical security flaw in the device's message processing mechanism that could potentially allow unauthorized remote exploitation. The vulnerability stems from inadequate input validation within the device's communication protocols, specifically affecting how the system handles malformed messages containing specially crafted parameters. Such vulnerabilities are particularly concerning in mobile devices where the attack surface is broad and the potential for remote exploitation is significant.
The technical implementation of this vulnerability manifests as an out-of-bounds read and write condition within the device's processing pipeline. When a malicious actor crafts a specific malformed message with targeted parameters and transmits it to an affected device, the system fails to properly validate the incoming data before processing. This insufficient validation allows the device to attempt memory operations beyond the bounds of allocated buffers, leading to unpredictable behavior including system instability. The vulnerability is classified as an out-of-bounds read/write issue, which aligns with CWE-125 for out-of-bounds read and CWE-787 for out-of-bounds write conditions, both of which are common attack vectors in mobile security contexts.
The operational impact of this vulnerability extends beyond simple system instability to potentially enable complete device compromise. When exploited, the malformed message can cause the affected process to crash and subsequently reboot the device, creating a denial of service condition that could be exploited repeatedly to keep the device in a continuous reboot cycle. This type of attack aligns with ATT&CK technique T1499.001 for Network Denial of Service and represents a significant risk to device availability and user productivity. The unauthenticated nature of the attack means that any remote attacker can potentially exploit this vulnerability without requiring prior access credentials or privileged positions within the device's security framework.
Mitigation strategies for CVE-2020-9108 should prioritize immediate firmware updates to version 10.1.0.160(C00E160R2P8) or later, which contain the necessary patches to address the input validation deficiencies. Network administrators and device security teams should implement monitoring for suspicious network traffic patterns that might indicate exploitation attempts, particularly focusing on malformed messages targeting mobile device communication protocols. Additional defensive measures include network segmentation to limit exposure of vulnerable devices, implementation of intrusion detection systems with signatures for known malicious message patterns, and regular security assessments of mobile device fleets to identify and remediate similar vulnerabilities. Organizations should also consider deploying mobile device management solutions that can enforce automatic security updates and monitor for anomalous device behavior that might indicate exploitation attempts.