CVE-2024-0044 in Android
Summary
by MITRE • 03/11/2024
In createSessionInternal of PackageInstallerService.java, there is a possible run-as any app due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 12/17/2024
The vulnerability identified as CVE-2024-0044 resides within the PackageInstallerService.java component of Android systems, specifically in the createSessionInternal method where inadequate input validation creates a critical security flaw. This issue represents a privilege escalation vulnerability that allows malicious actors to execute code with elevated privileges across different application contexts. The flaw stems from insufficient sanitization of user-supplied parameters that are processed during package installation session creation, enabling unauthorized applications to potentially impersonate other applications within the system. The vulnerability is classified under CWE-20 as a weakness involving improper input validation, which directly contributes to the potential for unauthorized privilege escalation. According to the ATT&CK framework, this vulnerability maps to privilege escalation techniques where adversaries leverage system-level flaws to gain elevated access rights without requiring additional execution privileges or user interaction.
The technical implementation of this vulnerability exploits the lack of proper parameter validation during session creation processes, allowing attackers to manipulate input data that should be strictly controlled. When the system processes package installation requests through createSessionInternal, it fails to adequately verify the legitimacy of session parameters, particularly those related to application identity and permissions. This validation gap creates an opportunity for malicious actors to inject crafted parameters that bypass normal access controls and authentication mechanisms. The vulnerability is particularly concerning because it operates at the system level where package installation services maintain elevated privileges, making it possible for an attacker to leverage this flaw to execute arbitrary code with the privileges of other applications or system components.
The operational impact of CVE-2024-0044 extends beyond simple privilege escalation to encompass potential system compromise and data exposure. Attackers can exploit this vulnerability to install malicious packages that appear to originate from legitimate applications, potentially bypassing security controls designed to prevent unauthorized installations. The lack of user interaction requirements makes this vulnerability particularly dangerous as it can be exploited automatically without requiring physical access or user consent. This flaw could enable attackers to gain persistent access to devices, install backdoors, or manipulate system configurations that would otherwise be protected by proper access controls. The vulnerability's impact is amplified by its potential to be chained with other exploits, creating more sophisticated attack vectors that could compromise entire device ecosystems.
Mitigation strategies for CVE-2024-0044 should focus on implementing robust input validation mechanisms and strengthening parameter sanitization within the PackageInstallerService. System administrators should ensure that all Android devices are updated with the latest security patches provided by vendors, as this vulnerability typically requires firmware or system-level fixes. The implementation of proper access controls and privilege separation mechanisms can help limit the scope of potential exploitation. Security monitoring should include detection of anomalous package installation patterns and unauthorized session creation attempts. Additionally, organizations should consider implementing application whitelisting policies and enhanced security controls for package management operations. The vulnerability highlights the importance of following secure coding practices and conducting thorough security reviews of system-level components that handle sensitive operations such as package installation and privilege management.