CVE-2020-1826 in Honor Magic 2
Summary
by MITRE
Huawei Honor Magic2 mobile phones with versions earlier than 10.0.0.175(C00E59R2P11) have an information leak vulnerability. Due to a module using weak encryption tool, an attacker with the root permission may exploit the vulnerability to obtain some information.
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Analysis
by VulDB Data Team • 03/20/2024
The vulnerability identified as CVE-2020-1826 represents a critical information disclosure flaw affecting Huawei Honor Magic2 mobile devices running firmware versions prior to 10.0.0.175(C00E59R2P11). This weakness stems from the improper implementation of cryptographic mechanisms within a specific system module, creating an avenue for unauthorized information extraction. The vulnerability's classification aligns with CWE-327, which addresses the use of weak or broken cryptographic algorithms, and specifically relates to the improper use of encryption tools that fail to provide adequate security guarantees. The flaw manifests when the affected module employs encryption methods that are susceptible to reverse engineering or cryptanalysis, allowing for the exposure of sensitive data that should remain protected.
The technical implementation of this vulnerability involves a module within the device's operating system that utilizes weak encryption primitives or algorithms that have been compromised through known cryptographic attacks. Attackers with root-level access can exploit this weakness to extract information that would normally be protected by strong cryptographic measures. This information leak could potentially include sensitive system data, user credentials, or other confidential information stored within the device's memory or storage systems. The attack vector leverages the elevated privileges of a root user to manipulate the cryptographic module, bypassing normal security controls that would otherwise protect against such information disclosure.
The operational impact of CVE-2020-1826 extends beyond simple data exposure, as it represents a fundamental breakdown in the device's security architecture that could enable more sophisticated attacks. When an attacker possesses root permissions, they can exploit this vulnerability to gain access to previously protected information that may include device-specific keys, user authentication data, or application secrets. This weakness creates a persistent threat vector that could be exploited for lateral movement within the device's security boundaries or to facilitate further attacks against connected systems. The vulnerability's presence in mobile devices particularly concerning, as it undermines the fundamental security assumptions of mobile operating systems and could enable attackers to compromise user privacy and device integrity.
Mitigation strategies for this vulnerability require immediate firmware updates to version 10.0.0.175(C00E59R2P11) or later, which addresses the weak encryption implementation through proper cryptographic algorithm selection and implementation. System administrators and device users should prioritize updating their Huawei Honor Magic2 devices to ensure the patched encryption module is properly installed. Organizations should implement comprehensive device management policies that enforce automatic security updates and regularly audit device configurations to prevent exploitation of this vulnerability. The remediation process should include verification of the updated firmware version to confirm that the cryptographic module has been properly patched and that the device no longer exhibits the vulnerable behavior. Additionally, network monitoring solutions should be configured to detect potential exploitation attempts that may occur during the transition period while devices are being updated.