CVE-2014-0823 in WebSphere Application Server
Summary
by MITRE
IBM WebSphere Application Server (WAS) 8.x before 8.0.0.9 and 8.5.x before 8.5.5.2 allows remote attackers to read arbitrary files via a crafted URL.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 05/12/2026
IBM WebSphere Application Server version 8.x prior to 8.0.0.9 and 8.5.x prior to 8.5.5.2 contains a critical directory traversal vulnerability that enables remote attackers to access arbitrary files on the server through specially crafted URL requests. This vulnerability falls under the CWE-22 category of Improper Limitation of a Pathname to a Restricted Directory, commonly known as directory traversal or path traversal attacks. The flaw exists in the application server's handling of file requests where input validation is insufficient to prevent malicious path manipulation attempts. Attackers can exploit this vulnerability by constructing malicious URLs that contain sequences such as ../ or ..\ that navigate outside the intended directory structure, thereby gaining unauthorized access to sensitive files including configuration files, source code, and potentially system credentials stored on the server. The impact of this vulnerability extends beyond simple information disclosure as it can lead to complete system compromise when combined with other attack vectors. According to the ATT&CK framework, this vulnerability maps to T1083 (File and Directory Discovery) and T1566 (Phishing with Malicious Attachments) techniques, as attackers can use the information gathered to craft more sophisticated attacks. The vulnerability affects the core web application server functionality and can be exploited without authentication, making it particularly dangerous in environments where the application server is exposed to untrusted networks. Organizations running affected versions of IBM WebSphere Application Server are at significant risk of data breaches and system compromise. The vulnerability represents a fundamental flaw in input validation and access control mechanisms within the application server's file handling components. This issue demonstrates the critical importance of proper path validation and the principle of least privilege in web application security design. The exploitation of this vulnerability can lead to unauthorized access to sensitive data and potentially full system compromise, making it a high-priority remediation item for organizations using affected IBM WebSphere versions.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input in URL parameters that are processed by the application server's file access mechanisms. When a malicious user submits a crafted URL containing directory traversal sequences, the application server fails to properly validate or sanitize the input before processing the file request. This allows the attacker to navigate to directories outside the intended application scope and access files that should remain protected. The vulnerability is particularly concerning because it operates at the application level and can be exploited through standard HTTP requests without requiring special privileges or authentication. The affected versions of IBM WebSphere Application Server fail to implement proper input validation controls that would prevent such path manipulation attempts. Security researchers have documented that this type of vulnerability frequently occurs in web applications where developers assume that user input will be properly formatted or where input validation is insufficiently implemented. The vulnerability's impact is amplified by the fact that IBM WebSphere Application Server is commonly used in enterprise environments where sensitive business data and system configurations are stored. Organizations using these vulnerable versions are exposed to potential data leakage and system compromise that could affect multiple applications hosted on the same server instance. The remediation process involves applying the official IBM security patches that address the directory traversal flaw in the affected versions. These patches typically implement proper input validation and access control mechanisms that prevent malicious path traversal attempts. System administrators should prioritize applying these updates as soon as possible and conduct thorough testing to ensure that the patches do not introduce compatibility issues with existing applications. Additionally, organizations should consider implementing network-level controls such as web application firewalls and intrusion detection systems to provide additional layers of protection against exploitation attempts. The vulnerability also highlights the importance of regular security assessments and vulnerability scanning to identify and remediate similar issues in other components of the application stack. Organizations should review their overall security posture and implement comprehensive security controls that address both application-level and infrastructure-level threats to prevent similar vulnerabilities from occurring in other systems.