CVE-2025-40765 in TeleControl Server Basic
Summary
by MITRE • 10/14/2025
A vulnerability has been identified in TeleControl Server Basic V3.1 (All versions >= V3.1.2.2 < V3.1.2.3). The affected application contains an information disclosure vulnerability. This could allow an unauthenticated remote attacker to obtain password hashes of users and to login to and perform authenticated operations of the database service.
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Analysis
by VulDB Data Team • 11/05/2025
This vulnerability resides within TeleControl Server Basic V3.1 versions between 3.1.2.2 and 3.1.2.3, representing a critical information disclosure flaw that undermines the security posture of the affected system. The vulnerability stems from inadequate access controls and improper authentication mechanisms within the application's architecture, creating an exploitable pathway for unauthorized actors to gain sensitive information. The flaw specifically affects the database service component where user credential information is stored and managed, allowing attackers to extract password hashes without requiring valid authentication credentials. This represents a fundamental breakdown in the principle of least privilege and authentication security controls that should prevent such unauthorized access to sensitive system resources. The vulnerability aligns with CWE-200, which addresses information exposure, and specifically demonstrates the dangers of insufficient authentication checks that enable attackers to bypass normal access controls.
The technical exploitation of this vulnerability enables remote attackers to obtain password hashes through network-based attacks that do not require prior authentication or credentials. This information disclosure occurs at the application level where the system fails to properly validate access requests or implement adequate security measures to protect sensitive data. Attackers can leverage this weakness to perform reconnaissance activities and gain deeper insights into the system's user base, potentially enabling them to conduct credential stuffing attacks or other forms of authentication bypass. The extracted password hashes provide attackers with the means to authenticate to the database service and perform authenticated operations, creating a complete compromise scenario that allows for data exfiltration, privilege escalation, and potential lateral movement within the network. This vulnerability demonstrates characteristics consistent with ATT&CK technique T1078.004, which involves legitimate credentials and the abuse of application access tokens.
The operational impact of this vulnerability extends beyond simple information disclosure, creating a pathway for full system compromise and unauthorized data access. Organizations using affected TeleControl Server Basic versions face significant risks including unauthorized database access, potential data breaches, and the ability for attackers to escalate privileges and move laterally within their network infrastructure. The vulnerability's remote exploitability means that attackers can target the system from outside the network perimeter without requiring physical access or insider knowledge. This creates a particularly dangerous scenario where the attack surface is expanded to include the entire internet-facing network interface of the affected server. The ability to perform authenticated operations after obtaining password hashes transforms this vulnerability from a mere reconnaissance tool into a full compromise vector that can result in complete system takeover. Organizations must consider the potential for cascading effects throughout their network infrastructure, as compromised database credentials can provide access to multiple interconnected systems and applications that rely on the same authentication mechanisms. The vulnerability represents a critical failure in the security architecture that violates fundamental principles of secure system design and proper access control implementation.
Organizations should immediately implement mitigations including applying the vendor-provided patches or updates to move beyond the vulnerable version range, implementing network segmentation to limit access to the affected system, and conducting comprehensive security assessments to identify any potential compromise. Additional protective measures should include monitoring for unusual authentication patterns, implementing strong password policies, and ensuring proper network access controls are in place. The vulnerability highlights the importance of regular security updates and the dangers of running unsupported or outdated software versions. Organizations should also consider implementing intrusion detection systems to monitor for exploitation attempts and establish incident response procedures that account for credential compromise scenarios. Given the remote nature of the vulnerability, network-level protections such as firewalls and access control lists should be reviewed and strengthened to prevent unauthorized access to the affected system. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other systems and applications within the organization's infrastructure.