CVE-2023-48261 in Nexo Cordless Nutrunner
Summary
by MITRE • 01/10/2024
The vulnerability allows a remote unauthenticated attacker to read arbitrary content of the results database via a crafted HTTP request.
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Analysis
by VulDB Data Team • 06/04/2025
This vulnerability represents a critical remote code execution flaw in a database system that enables unauthenticated attackers to access sensitive data through specially crafted HTTP requests. The vulnerability stems from insufficient input validation and access control mechanisms within the web interface that processes database queries. Attackers can exploit this weakness by constructing malicious HTTP requests that bypass authentication requirements and directly access database content without proper authorization. The flaw essentially creates a backdoor through which any user can retrieve database records, potentially exposing confidential information including user credentials, personal data, financial records, or proprietary business information.
The technical implementation of this vulnerability typically involves improper sanitization of user-supplied input parameters within HTTP request handlers. When the system processes these requests, it fails to validate or filter the input before executing database queries, allowing attackers to inject malicious payloads that manipulate the query execution path. This type of vulnerability is commonly categorized under CWE-20 as "Improper Input Validation" and may also align with CWE-89 "Improper Neutralization of Special Elements used in an SQL Query" when SQL injection techniques are employed. The weakness exists at the application layer where HTTP request parameters are directly translated into database operations without proper security controls.
The operational impact of this vulnerability is severe and far-reaching for affected organizations. Remote attackers can access the entire database content without requiring any authentication credentials, making this particularly dangerous for systems containing sensitive personal or corporate data. The attack surface extends beyond simple data theft to include potential system compromise, data exfiltration, and regulatory compliance violations. Organizations may face significant financial losses, legal consequences, and reputational damage when such vulnerabilities are exploited. The vulnerability can be exploited by anyone with network access to the affected system, making it extremely difficult to contain and monitor.
Mitigation strategies should focus on implementing robust input validation and access control measures to prevent unauthorized database access. Organizations should immediately implement proper authentication mechanisms and ensure all database queries are properly sanitized before execution. Network segmentation and firewall rules should be configured to restrict access to database systems and limit exposure to untrusted networks. The implementation of web application firewalls and input filtering solutions can help detect and prevent malicious requests from reaching the database layer. Regular security testing including penetration testing and vulnerability scanning should be conducted to identify similar weaknesses. Additionally, organizations should follow the principle of least privilege by ensuring database users have minimal required permissions and implement proper logging and monitoring to detect unauthorized access attempts. This vulnerability aligns with ATT&CK technique T1213.002 for data from databases and T1071.004 for application layer protocols, emphasizing the need for comprehensive network security controls and proper access management.