CVE-2024-23745 in Web Clipper
Summary
by MITRE • 01/31/2024
In Notion Web Clipper 1.0.3(7), a .nib file is susceptible to the Dirty NIB attack. NIB files can be manipulated to execute arbitrary commands. Additionally, even if a NIB file is modified within an application, Gatekeeper may still permit the execution of the application, enabling the execution of arbitrary commands within the application's context.
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Analysis
by VulDB Data Team • 08/02/2024
The vulnerability identified as CVE-2024-23745 affects the Notion Web Clipper application version 1.0.3(7) and represents a critical security flaw related to the handling of .nib files. These files, which are binary interface builder files used in macOS applications, are susceptible to what is known as the Dirty NIB attack. This attack vector exploits the way macOS applications process and validate .nib files, creating a pathway for malicious actors to manipulate these files and execute arbitrary commands on affected systems. The vulnerability stems from insufficient validation mechanisms within the application's file processing pipeline, allowing attackers to inject malicious code into legitimate .nib files without detection.
The technical exploitation of this vulnerability occurs through the manipulation of .nib files, which are integral components of macOS application interfaces. When Notion Web Clipper processes these files, it fails to properly validate their integrity and authenticity, creating an opportunity for attackers to modify the files and inject malicious payloads. The Dirty NIB attack specifically targets the way these files are parsed and executed, leveraging weaknesses in the application's security model. Even when applications attempt to modify .nib files during runtime, the Gatekeeper security mechanism may still permit execution of the modified application, effectively bypassing the system's built-in protection measures.
The operational impact of this vulnerability is severe and multifaceted, as it allows for arbitrary code execution within the context of the Notion Web Clipper application. This means that an attacker who successfully exploits this vulnerability could potentially gain unauthorized access to system resources, execute malicious commands, and perform actions that would normally be restricted to the application's legitimate functionality. The attack could lead to data theft, system compromise, or further lateral movement within the network. The vulnerability affects users who have installed the specific version of Notion Web Clipper, creating a widespread risk across all systems where this application is deployed.
The vulnerability aligns with several cybersecurity frameworks and threat models, particularly relating to CWE-434 which addresses insecure file upload and the broader category of code injection vulnerabilities. From an ATT&CK perspective, this vulnerability maps to techniques such as T1059.001 for command and scripting interpreter and T1068 for exploit for privilege escalation. Organizations should immediately update to the latest version of Notion Web Clipper to address this vulnerability, as the attack surface remains significant while the patch is available. Additionally, security teams should monitor for suspicious .nib file modifications and implement additional layers of protection including application whitelisting and runtime monitoring to detect potential exploitation attempts. The vulnerability underscores the critical importance of proper file validation and the need for robust security measures in all application components, particularly those handling interface definition files in macOS environments.