CVE-2022-4232 in Event Registration System
Summary
by MITRE • 11/30/2022
A vulnerability, which was classified as critical, was found in SourceCodester Event Registration System 1.0. Affected is an unknown function. The manipulation of the argument cmd leads to unrestricted upload. It is possible to launch the attack remotely. VDB-214590 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 12/24/2022
The vulnerability identified as CVE-2022-4232 represents a critical security flaw within the SourceCodester Event Registration System version 1.0, specifically targeting an unknown function that processes user input. This weakness manifests through improper validation of the cmd argument, creating an unrestricted file upload condition that allows attackers to execute arbitrary code on the affected system. The vulnerability's classification as critical indicates the severe potential impact on system integrity and data confidentiality, as it enables remote code execution through malicious file uploads.
The technical exploitation of this vulnerability occurs when an attacker manipulates the cmd argument parameter, which bypasses normal input validation mechanisms and permits unrestricted file upload capabilities. This flaw falls under the CWE-434 category of Unrestricted Upload of File with Dangerous Type, where the system fails to properly validate file types and contents before accepting uploads. The vulnerability's remote attack vector means that malicious actors can exploit this weakness without requiring physical access to the system, making it particularly dangerous in web-facing applications. The attack surface is further expanded by the fact that the vulnerability exists within a web application framework, allowing for widespread exploitation across different network environments.
The operational impact of CVE-2022-4232 extends beyond simple unauthorized file uploads, as it creates a persistent backdoor for attackers to establish long-term system compromise. Once successfully exploited, attackers can execute arbitrary commands on the target system, potentially leading to complete system takeover, data exfiltration, or deployment of additional malicious payloads. The vulnerability's presence in an event registration system specifically increases the risk to user data, as such applications typically handle sensitive personal information including attendee details, registration data, and potentially payment information. The remote exploitation capability means that organizations cannot rely solely on network segmentation or firewall rules to protect against this threat, as the vulnerability can be exploited from any location with internet access.
Organizations should implement multiple layers of defense to mitigate the risks associated with this vulnerability, including immediate patching of the affected SourceCodester Event Registration System to the latest version. Network-based mitigations such as web application firewalls and strict upload validation should be deployed to prevent malicious file uploads, while application-level controls must enforce proper file type validation and content scanning. Security monitoring should include detection of unusual file upload patterns and command execution attempts, as outlined in the ATT&CK framework's T1190 and T1059 techniques for exploitation and command execution. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other applications, as this vulnerability demonstrates the importance of proper input validation and secure file handling practices in web applications. The incident also highlights the need for proper security testing during development phases and the implementation of secure coding practices to prevent similar vulnerabilities from being introduced into production systems.