CVE-2017-17327 in Huawei
Summary
by MITRE
Huawei smartphones with software of MHA-AL00AC00B125 have an improper resource management vulnerability. The software does not properly manage the resource when do device register operation. An attacker tricks the user who has root privilege to install a crafted application, successful exploit could cause certain service unavailable.
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Analysis
by VulDB Data Team • 02/21/2023
The vulnerability identified as CVE-2017-17327 affects Huawei smartphones running software version MHA-AL00AC00B125, representing a critical improper resource management flaw within the device registration process. This vulnerability stems from inadequate resource handling mechanisms during the device registration operation, creating potential attack vectors that could compromise system stability and availability. The flaw manifests when the system fails to properly manage allocated resources during the registration workflow, potentially leading to resource exhaustion or improper memory handling that could be exploited by malicious actors.
The technical exploitation of this vulnerability requires social engineering to convince a user with root privileges to install a malicious application. This prerequisite highlights the importance of user awareness and privilege management in mobile security contexts. The attack vector leverages the trust relationship between the user and the system, where the crafted application can manipulate the device registration process to consume excessive resources or corrupt resource management structures. This improper resource handling could result in denial of service conditions where specific services become unavailable, potentially disrupting critical device functionality and user operations.
From an operational impact perspective, this vulnerability poses significant risks to device availability and system integrity. When successfully exploited, the resource management failure could lead to complete service unavailability, forcing users to restart their devices or potentially requiring factory resets to restore normal operations. The vulnerability's reliance on root privilege escalation makes it particularly concerning as it requires users to actively participate in the attack execution, but once compromised, the impact extends beyond individual device security to potentially affect broader network operations if the device is part of larger enterprise or IoT ecosystems. The resource management failure could also create persistent instability issues that might not be immediately apparent but could accumulate over time.
Mitigation strategies for CVE-2017-17327 should focus on both immediate protective measures and long-term system hardening approaches. Users should avoid installing applications from untrusted sources and maintain strict control over root access privileges. System administrators should implement robust application vetting processes and consider device enrollment policies that limit root access to authorized personnel only. The vulnerability aligns with CWE-400, which addresses improper resource management, and represents a potential entry point for attacks categorized under the ATT&CK framework's privilege escalation techniques. Regular firmware updates and security patches should be implemented immediately upon availability, as Huawei would have likely released fixes for this specific resource management issue. Organizations should also consider network-based monitoring to detect anomalous registration patterns that might indicate exploitation attempts, while maintaining comprehensive incident response procedures to address potential service disruptions caused by resource exhaustion attacks.