CVE-2023-41261 in Scrutinizer
Summary
by MITRE • 10/25/2023
An issue was discovered in /fcgi/scrut_fcgi.fcgi in Plixer Scrutinizer before 19.3.1. The csvExportReport endpoint action generateCSV does not require authentication and allows an unauthenticated user to export a report and access the results.
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Analysis
by VulDB Data Team • 02/01/2026
The vulnerability identified as CVE-2023-41261 affects Plixer Scrutinizer versions prior to 19.3.1 and resides within the fcgi/scrut_fcgi.fcgi component. This represents a critical authentication bypass flaw that undermines the security model of the network monitoring platform. The affected endpoint csvExportReport within the generateCSV action creates an unauthorized access vector that allows any remote attacker to execute report exports without proper authentication credentials. This vulnerability specifically targets the web application interface that administrators use to generate network traffic reports, potentially exposing sensitive network data to unauthorized parties.
The technical implementation of this flaw stems from inadequate access control mechanisms within the FastCGI interface of Scrutinizer. The generateCSV function operates without requiring any form of authentication verification, which violates fundamental security principles of least privilege and access control. This issue is classified under CWE-287 which addresses improper authentication scenarios in software applications. The vulnerability exists because the application fails to validate user credentials before executing the report generation functionality, creating an open endpoint that can be exploited by malicious actors to extract potentially sensitive network monitoring data. The flaw demonstrates a classic case of insecure direct object reference where the application does not properly verify that the requesting user has authorization to access the requested resource.
The operational impact of this vulnerability is substantial as it enables unauthorized data exfiltration from network monitoring systems that typically contain highly sensitive information about network traffic patterns, user behavior, and system performance metrics. Attackers can leverage this vulnerability to access detailed reports that may include confidential network data, potentially exposing business-critical information about network infrastructure, user activities, and security events. The implications extend beyond simple data theft as this information could be used for further targeting, reconnaissance, or exploitation of the network environment. According to ATT&CK framework, this vulnerability maps to T1071.004 which covers application layer protocol and T1567.002 which addresses credential access through unsecured protocols, demonstrating how this flaw can be exploited as part of broader attack chains.
Organizations using affected versions of Plixer Scrutinizer should immediately implement mitigations including upgrading to version 19.3.1 or later where this vulnerability has been addressed. Network administrators should also consider implementing additional access controls such as firewall rules that restrict access to the fcgi endpoint to trusted IP addresses only. The vulnerability highlights the importance of proper authentication implementation and access control validation in web applications. Security teams should conduct comprehensive audits of their network monitoring systems to identify similar authentication bypass vulnerabilities that may exist in other components. Additionally, implementing network segmentation and monitoring for unusual report export activities can help detect exploitation attempts. The remediation process should include verifying that all endpoints requiring authentication properly validate user credentials before executing privileged operations, ensuring compliance with security standards and reducing the attack surface for similar vulnerabilities in the future.