CVE-2024-42218 in 1Password
Summary
by MITRE • 08/07/2024
1Password 8 before 8.10.38 for macOS allows local attackers to exfiltrate vault items by bypassing macOS-specific security mechanisms.
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Analysis
by VulDB Data Team • 08/13/2024
The vulnerability identified as CVE-2024-42218 affects 1Password 8 versions prior to 8.10.38 on macOS systems, representing a critical security flaw that undermines the application's ability to protect sensitive credential data. This issue enables local attackers to bypass macOS-specific security mechanisms that are designed to prevent unauthorized access to protected information. The flaw specifically targets the application's vault item handling processes, creating an avenue for data exfiltration that could compromise the security of stored passwords, personal identification information, and other sensitive digital assets.
The technical implementation of this vulnerability stems from insufficient validation and access control mechanisms within the 1Password application's macOS integration. Attackers can exploit this weakness to circumvent the standard security boundaries that typically protect vault contents from unauthorized access. The bypass occurs at the operating system level where macOS enforces security policies such as sandboxing, entitlements, and access controls. When these protections are successfully circumvented, attackers gain unauthorized access to vault items that should remain protected by the application's security architecture. This represents a failure in the application's security model where the expected isolation of sensitive data is compromised.
The operational impact of this vulnerability extends beyond simple data theft, as it fundamentally undermines the trust model that security applications like 1Password are designed to provide. Local attackers who successfully exploit this vulnerability can access all vault items without proper authentication, potentially gaining access to hundreds or thousands of credentials stored within the application. This creates a significant risk for users who rely on 1Password for managing their digital identities, as the compromise of a single system can lead to widespread credential exposure. The vulnerability is particularly concerning because it affects the core functionality of the application, meaning that all users who have not updated to version 8.10.38 or later remain at risk.
Organizations and individuals should immediately implement mitigations to address this vulnerability, beginning with updating to 1Password 8.10.38 or later versions where the security flaw has been patched. System administrators should conduct comprehensive audits to identify all systems running vulnerable versions of the application and ensure that automatic update mechanisms are properly configured. Additional protective measures include implementing network monitoring to detect unusual data access patterns, reviewing system logs for signs of unauthorized access attempts, and ensuring that security policies properly enforce the principle of least privilege. Security teams should also consider implementing additional layers of protection such as endpoint detection and response solutions that can monitor for suspicious behavior patterns associated with credential access attempts. The vulnerability aligns with CWE-284 Access Control Issues, specifically addressing inadequate access control mechanisms that allow unauthorized access to protected resources. From an ATT&CK perspective, this vulnerability maps to T1566 Initial Access and T1078 Valid Accounts, as it enables attackers to gain access to legitimate user accounts and credentials through compromised application security controls. The flaw demonstrates how inadequate sandboxing and access control implementation can create persistent security risks that undermine the integrity of security applications designed to protect sensitive information.