CVE-2025-36891 in Android
Summary
by MITRE • 09/04/2025
Elevation of privilege
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Analysis
by VulDB Data Team • 09/05/2025
Elevation of privilege vulnerabilities represent critical security flaws that allow attackers to gain higher levels of access than initially intended within a system or application. These vulnerabilities enable adversaries to escalate their privileges from standard user accounts to administrative or root-level permissions, fundamentally compromising the security model of the target environment. The technical nature of such flaws typically stems from improper access control mechanisms, insufficient input validation, or flawed privilege management processes that fail to properly enforce security boundaries between different user roles and system components.
The underlying technical implementation issues often manifest through several common patterns including insecure direct object references where attackers can manipulate resource identifiers to access unauthorized data, inadequate authentication checks that bypass required authorization steps, or improper privilege validation during critical operations. These vulnerabilities frequently occur at the application logic level where developers fail to implement proper security controls or assume that existing authentication mechanisms will sufficiently protect against unauthorized access attempts. The flaw typically exists in how the system validates user credentials, manages session tokens, or handles role-based access control decisions. When exploited successfully, these vulnerabilities create persistent backdoors that can be leveraged for further compromise and lateral movement within target networks.
The operational impact of elevation of privilege vulnerabilities extends far beyond initial compromise, as successful exploitation provides attackers with comprehensive control over affected systems and data. Attackers can manipulate critical system files, modify user accounts, access sensitive databases, and potentially establish persistence mechanisms that survive system restarts or security updates. The vulnerability's impact is particularly severe when combined with other exploit techniques, enabling attackers to achieve complete system takeover or data exfiltration capabilities. Organizations may experience significant financial losses, regulatory penalties, and reputational damage when such vulnerabilities are exploited in production environments, especially when they affect customer data or critical infrastructure systems.
Mitigation strategies for elevation of privilege vulnerabilities should focus on implementing robust access control mechanisms that follow the principle of least privilege and employ defense-in-depth approaches. Security controls must include proper input validation, secure coding practices that prevent direct object reference manipulation, and comprehensive authentication and authorization frameworks that validate user permissions at every critical system interaction point. Organizations should implement regular security testing including penetration testing and code reviews to identify potential privilege escalation paths before they can be exploited by malicious actors. Additional protective measures include monitoring for suspicious access patterns, implementing multi-factor authentication for privileged accounts, and maintaining up-to-date security patches that address known privilege escalation vulnerabilities. These mitigations align with industry standards such as cwe-269 for improper privilege management and attack techniques documented in the mitre att&ck framework under privilege escalation categories.
The prevalence of elevation of privilege vulnerabilities in modern systems highlights the ongoing challenge of implementing secure access controls in complex software environments. These flaws often persist across multiple system components and can be particularly difficult to detect through automated scanning tools alone, requiring comprehensive manual security assessments and continuous monitoring approaches. Organizations must maintain vigilance against both known vulnerabilities and emerging threat patterns that exploit similar privilege escalation mechanisms, as these attacks continue to represent a primary target for cybercriminals seeking persistent access to sensitive systems and data resources.