CVE-2026-21028 in Samsung
Summary
by MITRE • 06/05/2026
Improper access control in AuditLogService prior to SMR Jun-2026 Release 1 allows local attackers to access sensitive information.
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Analysis
by VulDB Data Team • 06/05/2026
This vulnerability represents a critical improper access control flaw within the AuditLogService component that existed prior to the SMR Jun-2026 Release 1 security patch. The weakness stems from inadequate authorization checks that permit local attackers to bypass normal access restrictions and obtain sensitive audit information. Such a vulnerability falls under the CWE-284 access control weakness category, specifically addressing improper access control mechanisms that allow unauthorized users to access protected resources. The local nature of the attack vector means that an attacker must already have system-level access or be able to execute code on the target system, but once achieved, they can exploit this flaw to read confidential audit logs and related sensitive data. The operational impact of this vulnerability extends beyond simple information disclosure as audit logs typically contain detailed records of system activities, user behaviors, and potentially sensitive operational data that could be leveraged for further attacks or system compromise. Attackers could use this information to identify system vulnerabilities, track user activities, or gather intelligence for more sophisticated attacks. The flaw represents a significant security gap in the system's defense-in-depth strategy, as audit services should inherently provide protection against unauthorized access to their own data. Organizations using affected systems face potential compliance violations and increased risk exposure due to the unauthorized access to audit trails that should remain protected. The vulnerability aligns with several ATT&CK techniques including T1070.004 (Indicator Removal on Host) and T1068 (Local Privilege Escalation) as attackers could potentially use the audit information to identify system weaknesses or escalate their privileges further. The security implications are particularly concerning as audit logs often contain timestamps, user credentials, system access patterns, and other sensitive operational details that could be exploited for targeted attacks. The vulnerability demonstrates poor security design principles where the service responsible for monitoring and logging system activities lacks proper access controls to protect its own sensitive data. Organizations should immediately implement the SMR Jun-2026 Release 1 patch to address this weakness, while also conducting thorough security assessments to identify any potential exploitation that may have already occurred. Additionally, system administrators should review existing audit log access controls and implement additional monitoring for unauthorized access attempts to audit services. The remediation process should include comprehensive testing to ensure that the access control mechanisms are properly enforced and that legitimate administrative access continues to function correctly. This vulnerability serves as a reminder of the critical importance of protecting audit infrastructure and maintaining proper separation of privileges within security-critical system components.