CVE-2024-56447
Published: 08 January 2025
Summary
CVE-2024-56447 is a high-severity Improper Privilege Management (CWE-269) vulnerability in Huawei Harmonyos. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 34.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-25 (Reference Monitor) and AC-3 (Access Enforcement).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mandates enforcement of approved authorizations for access to system resources like the window management module, preventing exploitation of improper permission controls by low-privilege local attackers.
Implements least privilege to restrict low-privilege users from unauthorized access or manipulation in the window management module, addressing CWE-269 improper privilege management.
Requires a reference monitor to mediate and enforce access control decisions tamper-proof, mitigating flaws in permission controls within the window management module.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Local improper privilege management in window module directly enables exploitation for privilege escalation by low-privileged attacker.
NVD Description
Vulnerability of improper permission control in the window management module Impact: Successful exploitation of this vulnerability may affect service confidentiality.
Deeper analysisAI
CVE-2024-56447 is a vulnerability involving improper permission control in the window management module, associated with CWE-269 (Improper Privilege Management) and CWE-276 (Incorrect Default Permissions). It carries a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) and was published on 2025-01-08. The issue primarily impacts service confidentiality upon successful exploitation, though the CVSS vector indicates high potential effects on confidentiality, integrity, and availability.
A local attacker with low privileges can exploit this vulnerability with low attack complexity and no user interaction required. Exploitation allows unauthorized access or manipulation within the affected window management module, enabling high-impact disruption to confidentiality, integrity, and availability of services on the targeted system.
Huawei has published a consumer support bulletin at https://consumer.huawei.com/en/support/bulletin/2025/1/ addressing this vulnerability, which likely includes details on patches or mitigation steps for affected devices.
Details
- CWE(s)