CVE-2024-5181 in localai
Summary
by MITRE • 06/26/2024
A command injection vulnerability exists in the mudler/localai version 2.14.0. The vulnerability arises from the application's handling of the backend parameter in the configuration file, which is used in the name of the initialized process. An attacker can exploit this vulnerability by manipulating the path of the vulnerable binary file specified in the backend parameter, allowing the execution of arbitrary code on the system. This issue is due to improper neutralization of special elements used in an OS command, leading to potential full control over the affected system.
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Analysis
by VulDB Data Team • 06/27/2024
The command injection vulnerability identified as CVE-2024-5181 affects mudler/localai version 2.14.0 and represents a critical security flaw that enables remote code execution through improper input validation. This vulnerability stems from the application's insecure handling of the backend parameter within configuration files, where the parameter value directly influences the naming and initialization of system processes. The flaw creates an environment where attacker-controlled input can be interpreted as executable commands rather than mere configuration data, fundamentally compromising the application's security posture.
The technical implementation of this vulnerability follows the CWE-77 principle of command injection, where the application fails to properly sanitize or escape special characters in user-supplied input before incorporating it into operating system commands. When the backend parameter contains malicious payloads such as semicolons, pipes, or other command separators, these elements are not neutralized or properly quoted, allowing attackers to chain additional commands that execute with the privileges of the running application. This weakness manifests in the process initialization phase where the vulnerable application constructs system calls without adequate input validation, creating a direct pathway for arbitrary code execution.
The operational impact of CVE-2024-5181 extends beyond simple code execution to encompass full system compromise, as demonstrated by the ATT&CK technique T1059.001 for command and script injection. An attacker exploiting this vulnerability can gain persistent access to the affected system, potentially escalate privileges, and execute malicious payloads that could lead to data exfiltration, lateral movement, or establishment of backdoors. The vulnerability is particularly dangerous in containerized environments where localai might run with elevated permissions, as the command injection could enable attackers to compromise the entire host system. Additionally, the vulnerability affects the application's configuration management process, potentially allowing attackers to modify or replace critical system components through the manipulated backend parameter.
Mitigation strategies for CVE-2024-5181 should focus on implementing robust input validation and sanitization mechanisms that prevent special characters from being interpreted as command delimiters. The recommended approach includes enforcing strict parameter validation for the backend configuration, implementing proper command escaping or quoting mechanisms, and utilizing secure coding practices that avoid direct command construction from user input. Organizations should also consider implementing network segmentation, privilege separation, and monitoring solutions to detect potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1566 for social engineering and T1041 for data compression, as attackers may attempt to obfuscate their payloads or use legitimate system tools to execute malicious commands. Regular security updates and patch management procedures should be prioritized to address this vulnerability, while system administrators should conduct thorough configuration reviews to ensure that backend parameters are properly validated before being used in system process initialization.