CVE-2023-43986 in DM Concept Configurator
Summary
by MITRE • 10/25/2023
DM Concept configurator before v4.9.4 was discovered to contain a SQL injection vulnerability via the component ConfiguratorAttachment::getAttachmentByToken.
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Analysis
by VulDB Data Team • 02/08/2026
The vulnerability identified as CVE-2023-43986 affects the DM Concept configurator software prior to version 4.9.4, representing a critical security flaw that exposes the application to unauthorized data access and potential system compromise. This issue resides within the ConfiguratorAttachment::getAttachmentByToken component, which serves as a crucial interface for retrieving attachment data based on token authentication. The vulnerability stems from improper input validation and sanitization mechanisms that fail to adequately filter user-supplied data before incorporating it into database queries. Security researchers have identified that malicious actors can exploit this weakness by crafting specially formatted tokens that manipulate the underlying sql query structure, potentially allowing them to extract sensitive information from the database or execute unauthorized commands against the backend system.
The technical implementation of this sql injection vulnerability demonstrates a classic case of insufficient parameter validation within the application's data handling pipeline. The ConfiguratorAttachment::getAttachmentByToken method accepts a token parameter without proper sanitization or parameter binding, creating an environment where attacker-controlled input can directly influence the sql execution flow. This flaw aligns with CWE-89 which specifically addresses sql injection vulnerabilities, where untrusted data is incorporated into sql commands without proper escaping or parameterization. The vulnerability operates at the application layer and requires minimal privileges to exploit, making it particularly dangerous as it can be leveraged by both authenticated and unauthenticated attackers depending on the application's access controls. The attack vector typically involves constructing malicious token values that contain sql payload fragments, which when processed by the vulnerable component, result in unintended database operations.
The operational impact of this vulnerability extends beyond simple data theft, potentially enabling full system compromise and persistent access to sensitive organizational information. Attackers exploiting this vulnerability could gain access to confidential user data, system configurations, and potentially escalate privileges to execute arbitrary code on the database server. The implications are particularly severe for organizations using DM Concept configurator for managing critical business processes, as the vulnerability could lead to data breaches, regulatory compliance violations, and significant financial losses. The vulnerability affects the integrity and confidentiality of the entire system, as unauthorized parties could manipulate database contents, modify access controls, or establish backdoors for continued unauthorized access. Organizations relying on this software for business-critical operations face increased risk of service disruption and potential legal consequences due to data exposure.
Mitigation strategies for CVE-2023-43986 require immediate implementation of proper input validation and parameterized query execution within the affected component. Organizations should upgrade to DM Concept configurator version 4.9.4 or later, which includes patches addressing the sql injection vulnerability through proper input sanitization and parameter binding mechanisms. Security teams must implement comprehensive input validation checks that reject or sanitize any input containing sql metacharacters or command sequences before processing. The recommended approach involves adopting prepared statements or parameterized queries to ensure that user-supplied data cannot alter the intended sql query structure. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection by monitoring for suspicious patterns in token values and database access attempts. Regular security assessments and penetration testing should be conducted to verify the effectiveness of implemented fixes and identify potential related vulnerabilities. Organizations should also consider implementing principle of least privilege access controls and regular security audits to minimize the potential impact of similar vulnerabilities in other system components, aligning with defense-in-depth strategies outlined in various cybersecurity frameworks including those referenced in the mitre att&ck framework for identifying and mitigating common attack patterns.