CVE-2011-4036 in Citectscada Reports
Summary
by MITRE
Directory traversal vulnerability in Schneider Electric Vijeo Historian 4.30 and earlier, CitectHistorian 4.30 and earlier, and CitectSCADAReports 4.10 and earlier allows remote attackers to read arbitrary files via unspecified vectors.
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Analysis
by VulDB Data Team • 01/15/2018
The vulnerability identified as CVE-2011-4036 represents a critical directory traversal flaw affecting several Schneider Electric industrial software products including Vijeo Historian 4.30 and earlier versions, CitectHistorian 4.30 and earlier, and CitectSCADAReports 4.10 and earlier. This security weakness resides in the improper input validation mechanisms of these industrial control system applications, which fail to adequately sanitize user-supplied data before processing file system requests. The flaw enables malicious actors to manipulate file access requests and potentially gain unauthorized access to sensitive system files, configuration data, and operational information stored within the affected applications. The vulnerability's impact extends beyond simple data exposure as it can provide attackers with insights into the underlying system architecture and operational parameters that are typically protected within industrial environments.
The technical implementation of this directory traversal vulnerability stems from insufficient validation of file path inputs within the affected software components. Attackers can exploit this weakness by crafting malicious requests that include directory traversal sequences such as ../ or ..\ to navigate outside the intended directory boundaries and access files that should remain restricted. The unspecified vectors mentioned in the description suggest that the vulnerability may be exploitable through multiple attack surfaces within the software architecture, potentially including web interfaces, API endpoints, or file processing modules. This lack of specificity in the vulnerability description indicates that the flaw may be present in several code paths, making the attack surface more extensive and potentially more difficult to fully remediate through targeted fixes.
The operational impact of CVE-2011-4036 in industrial control environments is particularly severe given the nature of the affected software and its role in industrial monitoring and data collection systems. Organizations utilizing these legacy industrial applications face significant risks including unauthorized access to proprietary operational data, potential disruption of industrial processes, and exposure of critical infrastructure information. The vulnerability creates opportunities for attackers to gather intelligence about system configurations, operational procedures, and potentially identify additional weaknesses within the industrial control system landscape. From a cybersecurity perspective, this vulnerability aligns with CWE-22 which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The attack pattern described in MITRE ATT&CK framework under T1083 (File and Directory Discovery) and T1566 (Phishing) demonstrates how such vulnerabilities can be leveraged to establish initial access and gather reconnaissance information for more sophisticated attacks within industrial control environments.
Mitigation strategies for CVE-2011-4036 should focus on immediate remediation through official software updates and patches provided by Schneider Electric, as these products are no longer supported with current security updates. Organizations should implement network segmentation to limit access to affected systems, deploy web application firewalls to filter suspicious path traversal attempts, and establish robust access controls to restrict file system access to authorized personnel only. The vulnerability also underscores the importance of maintaining current security practices and avoiding deployment of legacy industrial software versions that are no longer receiving security updates, as these systems pose significant risks to operational technology environments. Security monitoring should include detection of unusual file access patterns and directory traversal attempts that may indicate exploitation attempts against these vulnerable systems.