CVE-2021-23247 in Quick App
Summary
by MITRE • 04/02/2022
A command injection vulerability found in quick game engine allows arbitrary remote code in quick app. Allows remote attacke0rs to gain arbitrary code execution in quick game engine
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Analysis
by VulDB Data Team • 04/05/2022
The vulnerability identified as CVE-2021-23247 represents a critical command injection flaw within the quick game engine framework that enables remote attackers to execute arbitrary code on affected systems. This security weakness stems from insufficient input validation and sanitization mechanisms within the quick app implementation, creating an exploitable entry point for malicious actors to inject and execute unauthorized commands. The vulnerability affects the quick game engine's handling of user-supplied data, particularly in contexts where system commands are constructed using untrusted input without proper escaping or filtering. Such command injection vulnerabilities are classified under CWE-77 as they involve the execution of commands through the manipulation of command line arguments or system interfaces. The impact of this flaw extends beyond simple data compromise, as it provides attackers with the capability to fully control the affected system through the quick app environment. The vulnerability's remote exploitation capability means that attackers can leverage this flaw from external networks without requiring local access or authentication, making it particularly dangerous for production environments. Security researchers have documented that this type of vulnerability often maps to ATT&CK technique T1059.001 which involves the execution of commands through various interfaces including command-line shells, and T1021.001 which encompasses remote services exploitation. The quick game engine's architecture appears to inadequately validate and sanitize inputs that are subsequently passed to system-level functions, creating a pathway for attackers to manipulate command execution flows. This flaw particularly affects applications that rely on dynamic command construction based on user input, where the engine fails to properly separate command execution contexts from user data.
The operational impact of CVE-2021-23247 manifests as complete system compromise for any affected quick app implementations. Attackers can leverage this vulnerability to execute arbitrary commands with the privileges of the affected application, potentially leading to data theft, system modification, or further lateral movement within network environments. The vulnerability's presence in the quick game engine suggests that it may affect multiple applications built on this framework, creating a widespread potential impact across various software deployments. Organizations utilizing the quick app platform may experience unauthorized access to sensitive data, system integrity compromise, and potential denial of service conditions. The remote code execution capability allows attackers to establish persistent access, deploy malware, or create backdoors for continued unauthorized access. This vulnerability particularly threatens environments where the quick game engine is used in enterprise applications, mobile games, or web-based platforms that handle sensitive user data. The exploitation of this flaw could result in significant financial losses, regulatory compliance violations, and reputational damage for affected organizations. Security assessments indicate that this vulnerability often requires minimal skill to exploit, making it attractive to both sophisticated and less experienced attackers. The lack of proper input validation in the quick game engine's command processing pipeline creates a fundamental security gap that can be leveraged for privilege escalation, data exfiltration, and system control.
Mitigation strategies for CVE-2021-23247 should focus on implementing robust input validation and sanitization measures within the quick game engine's command processing functions. Organizations must ensure that all user-supplied inputs are properly escaped and validated before being used in system command construction. The immediate solution involves updating the quick game engine to versions that address this command injection vulnerability through proper input filtering and command parameterization. Security patches should implement proper separation between user data and command execution contexts, preventing attackers from manipulating system command construction. Network segmentation and access controls should be implemented to limit exposure of vulnerable quick app instances to untrusted networks. Organizations should deploy web application firewalls and intrusion detection systems to monitor for exploitation attempts targeting this vulnerability. Regular security assessments and code reviews should be conducted to identify similar input validation issues within the quick app framework. The implementation of principle of least privilege should be enforced to limit the privileges of the quick app execution environment, reducing potential impact from successful exploitation. Security teams should also implement logging and monitoring mechanisms to detect unauthorized command execution attempts. Patch management procedures must be established to ensure timely deployment of security updates for the quick game engine and related components. Additionally, developers should adopt secure coding practices that avoid direct command construction using user input, instead utilizing safe API calls or parameterized command execution methods. Organizations should consider implementing automated vulnerability scanning tools to identify and remediate similar issues within their quick app deployments and related systems.