CVE-2026-82712 in TPDIN-Monitor-WEB3
Summary
by MITRE • 09/05/2026
Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a cross-site request forgery vulnerability. This could allow an attacker to perform state changing operations on the device.
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Analysis
by VulDB Data Team • 09/05/2026
The Tycon Systems TPDIN-Monitor-WEB3, specifically in version 2.2.9 and earlier releases, contains a critical security flaw classified as Cross-Site Request Forgery, commonly referred to by its acronym CSRF or XSRF. This vulnerability stems from the web-based management interface of the industrial monitoring device failing to implement adequate anti-CSRF mechanisms when processing administrative commands. In typical network environments where such devices are deployed, they often operate within trusted internal networks and may rely on session cookies for authentication without verifying the origin of incoming requests. When a user with administrative privileges is authenticated to the web interface, their browser automatically includes these credentials in any subsequent request made to that domain. The flaw allows an attacker to craft malicious HTML or JavaScript content that forces the victim's browser to send unintended state-changing commands to the device while the victim is logged in and unaware of the action being taken.
From a technical perspective, this vulnerability aligns with CWE-352, which describes Cross-Site Request Forgery as a weakness where an application uses user-supplied input without proper validation or verification of intent. The absence of unique per-session tokens, strict origin header checks, or custom request headers means that the device cannot distinguish between legitimate requests initiated by the authenticated administrator and maliciously forged requests triggered by external actors. This lack of synchronization token implementation is a common oversight in embedded web servers used for industrial control systems, where resource constraints often lead developers to prioritize functionality over robust security controls. The attacker does not need to steal session cookies or bypass authentication mechanisms; instead, they exploit the trust that the device places in the browser's automatic inclusion of credentials when making requests to its own domain.
The operational impact of this vulnerability is severe due to the nature of the affected equipment as an industrial monitoring tool. An successful exploitation allows a remote attacker to perform state-changing operations on the TPDIN-Monitor-WEB3 without authorization. This could include altering configuration settings, disabling security logs, changing network parameters, or potentially disrupting the monitoring capabilities essential for maintaining operational visibility in critical infrastructure environments. In an Industrial Control System context, such unauthorized changes can lead to significant downtime, data integrity issues, and compromised safety protocols. The attacker might also use this access as a foothold to pivot further into the internal network if the device has connectivity to other systems, thereby escalating the threat from a local configuration issue to a broader enterprise security breach.
This vulnerability maps directly to MITRE ATT&CK technique T1078, specifically Valid Accounts, and more precisely relates to actions taken by an attacker who has gained access through social engineering or malicious web content that exploits trusted sessions. It also falls under the category of client-side attacks where the victim's browser is manipulated into performing unwanted actions on behalf of a different user. To mitigate this risk, immediate action should be taken to upgrade the firmware to version 2.3.0 or later if available from Tycon Systems, as newer versions typically include patches for such common web application vulnerabilities. In cases where upgrading is not immediately feasible, network-level mitigations can be employed. These include restricting access to the device's management interface using firewall rules that limit connectivity only to authorized administrative workstations and ensuring that these connections are made over secure channels like HTTPS with strict certificate validation. Additionally, implementing a Web Application Firewall capable of detecting anomalous request patterns or enforcing origin checks can provide an additional layer of defense against CSRF attacks until the underlying software flaw is resolved.