CVE-2014-3777 in PHP Report Designer
Summary
by MITRE
Directory traversal vulnerability in Reportico PHP Report Designer before 4.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the xmlin parameter.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 03/24/2022
The CVE-2014-3777 vulnerability represents a critical directory traversal flaw in the Reportico PHP Report Designer software prior to version 4.0. This vulnerability exists within the xmlin parameter processing functionality, which fails to properly validate or sanitize user-supplied input before using it to access file system resources. The flaw enables remote attackers to manipulate file paths through the use of directory traversal sequences such as .. or %2e%2e, effectively allowing them to navigate outside the intended directory boundaries and access arbitrary files on the server. The vulnerability stems from insufficient input validation and improper path handling mechanisms within the application's file access routines.
This directory traversal vulnerability operates at the core of web application security principles and directly relates to CWE-22, which classifies improper limitation of a pathname to a restricted directory. The flaw allows attackers to exploit the application's inability to properly filter or sanitize input parameters, specifically targeting the xmlin parameter that controls report configuration file loading. When an attacker submits a malicious payload containing directory traversal sequences, the application processes these sequences without adequate sanitization, resulting in unauthorized file system access. The vulnerability is particularly dangerous because it can be exploited remotely without requiring authentication, making it an attractive target for automated scanning tools and malicious actors seeking to compromise web applications.
The operational impact of CVE-2014-3777 extends beyond simple file disclosure, as it can potentially lead to complete system compromise depending on the server configuration and file permissions. Attackers can leverage this vulnerability to access sensitive configuration files, database credentials, application source code, and other critical system files that may contain authentication tokens, encryption keys, or other confidential information. The vulnerability's remote exploitability means that attackers can perform reconnaissance and information gathering from any location, making it particularly dangerous in environments where the application is exposed to untrusted networks. Additionally, the vulnerability can serve as a stepping stone for further attacks, potentially enabling privilege escalation or lateral movement within compromised networks.
Mitigation strategies for CVE-2014-3777 should focus on implementing proper input validation and sanitization mechanisms throughout the application's codebase. The most effective approach involves implementing strict parameter validation that rejects or removes directory traversal sequences from user input before processing. Organizations should also implement proper access controls and file system permissions to limit what files can be accessed even if the vulnerability is exploited. The remediation process requires updating to Reportico version 4.0 or later, which includes proper input validation and sanitization measures. Security professionals should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts. This vulnerability aligns with ATT&CK technique T1083, which covers directory and file system discovery, and represents a common pattern of insecure input handling that frequently appears in web applications. Organizations should conduct comprehensive code reviews to identify similar vulnerabilities in other applications and implement secure coding practices to prevent future occurrences of directory traversal flaws in their software development lifecycle.