CVE-2024-20005 in MT6761
Summary
by MITRE • 03/04/2024
In da, there is a possible permission bypass due to a missing permission check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08355599; Issue ID: ALPS08355599.
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Analysis
by VulDB Data Team • 08/06/2024
The vulnerability identified as CVE-2024-20005 represents a critical permission bypass flaw within the da component of a system architecture. This issue stems from a fundamental missing permission check that allows unauthorized access to privileged operations. The vulnerability specifically affects systems where da serves as a core service component, potentially enabling attackers to escalate their privileges from standard user level to system execution privileges without requiring any user interaction. The absence of proper authorization validation creates a pathway for malicious actors to bypass intended security controls and gain elevated system access. This type of vulnerability directly impacts the principle of least privilege and can severely compromise system integrity and confidentiality.
The technical root cause of this vulnerability lies in the implementation of access control mechanisms within the da service. When da processes requests or operations, it fails to properly verify whether the requesting entity possesses the necessary permissions to execute specific actions. This missing validation check creates an exploitable gap where unauthorized entities can perform operations that should be restricted to privileged users or system processes. The flaw manifests as a failure in the authorization framework, where the system assumes proper access controls are in place when they are not adequately enforced. This type of implementation error falls under the CWE category of insufficient authorization checks, specifically CWE-285 which addresses improper authorization in software components.
The operational impact of CVE-2024-20005 extends beyond simple privilege escalation to potentially enable complete system compromise. Once an attacker successfully exploits this vulnerability, they can execute arbitrary code with system-level privileges, potentially leading to data exfiltration, system modification, or persistent backdoor installation. The lack of user interaction requirement makes this vulnerability particularly dangerous as it can be exploited automatically without any human intervention, enabling rapid and widespread compromise. This characteristic aligns with ATT&CK technique T1068 which describes the use of local privilege escalation to gain system-level access. The vulnerability can be leveraged to establish persistent access, modify system configurations, or access sensitive data that would normally be protected by proper access controls.
Mitigation strategies for this vulnerability should focus on implementing comprehensive permission checking mechanisms and ensuring proper authorization validation throughout the da service implementation. The patch identified as ALPS08355599 addresses this specific issue by adding the missing permission checks and strengthening the authorization framework. Organizations should prioritize applying this patch immediately to prevent exploitation attempts. Additional defensive measures include implementing runtime monitoring for unusual privilege escalation patterns, conducting regular security assessments of system components, and ensuring proper access control configuration. Security teams should also consider implementing network segmentation and privilege separation to limit the potential impact should this vulnerability be exploited. The remediation process should include thorough testing to ensure that the patch does not introduce regressions in system functionality while properly addressing the authorization bypass issue.