CVE-2025-2863 in saTECH BCU
Summary
by MITRE • 03/28/2025
Cross-site request forgery (CSRF) vulnerability in the web application of saTECH BCU firmware version 2.1.3, which could allow an unauthenticated local attacker to exploit active administrator sessions and perform malicious actions. The malicious actions that can be executed by the attacker depend on the logged-in user, and may include rebooting the device or modifying roles and permissions.
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Analysis
by VulDB Data Team • 10/10/2025
The cross-site request forgery vulnerability identified in saTECH BCU firmware version 2.1.3 represents a critical security flaw that undermines the integrity of the device's administrative functions. This vulnerability operates by exploiting the lack of proper authentication verification mechanisms within the web application interface, allowing an attacker to manipulate active administrator sessions without requiring valid credentials. The flaw specifically targets the session management protocols that should ensure only authorized individuals can execute privileged operations, creating a dangerous pathway for unauthorized access to critical system functions. The vulnerability exists within the firmware's web interface implementation, where request validation is insufficient to distinguish between legitimate administrative requests and maliciously crafted ones.
The technical exploitation of this CSRF vulnerability occurs through the manipulation of session tokens and the crafting of malicious requests that appear to originate from authenticated administrative sessions. An attacker positioned locally on the network can leverage this flaw to execute commands that would normally require administrative privileges, effectively bypassing the normal authentication and authorization mechanisms. The vulnerability's impact extends beyond simple unauthorized access, as it allows for potentially destructive actions including device reboot operations and modification of user roles and permissions within the system. This represents a significant compromise of the device's security model, where the attacker can essentially assume administrative control without proper authentication. The flaw aligns with CWE-352, which specifically addresses cross-site request forgery vulnerabilities in web applications, and demonstrates how such weaknesses can be exploited in embedded systems with web interfaces.
The operational impact of this vulnerability is severe for any organization relying on saTECH BCU devices, as it creates a pathway for persistent unauthorized access to critical network infrastructure. Local network attackers can exploit this vulnerability to gain administrative control over the device, potentially disrupting network operations through reboot commands or elevating their privileges by modifying user access rights. The risk is particularly concerning because it allows for both reactive and proactive attacks, where an attacker could perform immediate destructive actions or establish persistent access through permission modifications. This vulnerability directly impacts the availability and integrity of the network infrastructure, as the device could be rendered inoperable through unauthorized reboots or compromised through unauthorized access to administrative functions. The potential for cascading effects exists if this device serves as a critical network component, where unauthorized access could lead to broader network compromise.
Organizations should implement immediate mitigations including firmware updates from saTECH to address the CSRF implementation flaw, along with network segmentation to limit local access to these devices. The implementation of additional security controls such as multi-factor authentication for administrative access, session timeout mechanisms, and proper request validation should be enforced. Network monitoring should be enhanced to detect suspicious administrative activities that might indicate exploitation attempts. Security teams should also consider disabling unnecessary web interfaces on these devices when possible, as the vulnerability specifically targets the web application layer. The remediation process should include thorough testing of the updated firmware to ensure that the CSRF protections are properly implemented and that no additional vulnerabilities have been introduced during the update process. According to ATT&CK framework, this vulnerability maps to T1566 for initial access through web application attacks and T1078 for valid accounts usage, highlighting the multi-stage nature of exploitation that can occur through such flaws.