CVE-2018-7787 in U.motion Builder
Summary
by MITRE
In Schneider Electric U.motion Builder software versions prior to v1.3.4, this vulnerability is due to improper validation of input of context parameter in HTTP GET request.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 02/25/2020
The vulnerability identified as CVE-2018-7787 affects Schneider Electric U.motion Builder software versions prior to v1.3.4, representing a critical security flaw that stems from inadequate input validation mechanisms within the application's handling of HTTP GET requests. This issue manifests when the software fails to properly validate context parameters received through web requests, creating an avenue for malicious actors to exploit the system's trust in incoming data without sufficient verification processes. The vulnerability resides in the software's web interface component that processes user requests, specifically where context parameters are parsed and utilized without adequate sanitization or validation checks.
This flaw constitutes a classic input validation vulnerability that aligns with CWE-20, which describes improper input validation as a fundamental weakness in software security architecture. The vulnerability allows attackers to manipulate the context parameter within HTTP GET requests to potentially inject malicious payloads or manipulate the application's behavior. The improper validation creates a path for various attack vectors including but not limited to command injection, cross-site scripting, or unauthorized access to system resources. The software's failure to implement robust parameter validation means that user-supplied context data is directly processed without adequate filtering or sanitization, leaving the system exposed to exploitation attempts.
The operational impact of this vulnerability extends beyond simple data manipulation, as it could potentially enable attackers to execute arbitrary code on the affected system or gain unauthorized access to sensitive operational data. In industrial control environments where Schneider Electric U.motion Builder is deployed, such vulnerabilities pose significant risks to operational technology infrastructure, potentially compromising the integrity of industrial processes and control systems. The attack surface is particularly concerning given that the vulnerability affects a software tool commonly used in industrial automation and control system design, where security is paramount to prevent disruptions to critical infrastructure operations.
Mitigation strategies for CVE-2018-7787 should prioritize immediate software updates to version 1.3.4 or later, which includes the necessary input validation patches to address the vulnerability. Organizations should also implement network segmentation and access controls to limit exposure of the affected software to untrusted networks or users. Additionally, web application firewalls and intrusion detection systems should be configured to monitor for suspicious HTTP GET requests containing malformed context parameters. The vulnerability demonstrates the importance of following secure coding practices and implementing proper input validation as outlined in the OWASP Top Ten security principles, particularly focusing on the prevention of injection flaws and ensuring proper parameter handling in web applications. Organizations should also conduct thorough security assessments of their industrial control systems to identify similar vulnerabilities in other components of their operational technology infrastructure.