CVE-2023-49346 in budgie-weathershow
Summary
by MITRE • 12/15/2023
Temporary data passed between application components by Budgie Extras WeatherShow applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to users or deny access to the application and panel.
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Analysis
by VulDB Data Team • 01/11/2024
The CVE-2023-49346 vulnerability affects the Budgie Extras WeatherShow applet, a component of the Budgie desktop environment for linux systems. This flaw represents a significant security concern as it exposes temporary data storage mechanisms that should remain isolated from unauthorized access. The vulnerability stems from improper handling of temporary data files within the application's architecture, creating an attack surface that adversaries can exploit to manipulate weather information displayed to end users.
The technical implementation of this vulnerability involves the WeatherShow applet storing temporary data in a location that lacks proper access controls. This misconfiguration allows any local user with system access to view or modify the temporary files containing weather information. The flaw demonstrates poor privilege separation and inadequate sandboxing of application components, creating a path for privilege escalation through data manipulation. According to CWE classification, this represents a weakness in temporary file handling and improper access control mechanisms. The vulnerability specifically aligns with CWE-732, which addresses incorrect permissions for critical resources, and CWE-276, concerning incorrect permissions for critical resources.
The operational impact of this vulnerability extends beyond simple information disclosure to include potential denial of service and information manipulation scenarios. Attackers can pre-create malicious files in the temporary data location, allowing them to inject false weather information that appears legitimate to users. This manipulation capability undermines the trust users place in the application's output and could potentially be exploited for more sophisticated social engineering attacks. The vulnerability also enables denial of service conditions where attackers can corrupt or delete temporary files, preventing the WeatherShow applet from functioning properly and disrupting user access to weather information.
Mitigation strategies for CVE-2023-49346 should focus on implementing proper file access controls and secure temporary data handling practices. System administrators should ensure that temporary files are stored in directories with restrictive permissions, limiting access to the specific application user rather than allowing broad system access. The application should be configured to use secure temporary file creation methods that prevent race conditions and unauthorized access. According to ATT&CK framework guidance, this vulnerability represents a potential entry point for lateral movement and privilege escalation attacks, making proper access control implementation crucial for system security. Organizations should also consider implementing file integrity monitoring solutions to detect unauthorized modifications to critical application temporary files. Regular security audits of desktop environment components should be conducted to identify similar access control vulnerabilities in other applications that may be storing temporary data in insecure locations.