CVE-2002-0323 in Scriptease Webserver
Summary
by MITRE
comment2.jse in ScriptEase:WebServer allows remote attackers to read arbitrary files by specifying the target file as an argument in the URL.
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Analysis
by VulDB Data Team • 06/27/2021
The vulnerability identified as CVE-2002-0323 affects ScriptEase:WebServer and specifically targets the comment2.jse component within the system. This flaw represents a critical directory traversal vulnerability that enables remote attackers to access arbitrary files on the target system through manipulated URL parameters. The vulnerability stems from insufficient input validation and sanitization within the web server's script processing mechanism, allowing malicious users to bypass normal access controls and retrieve sensitive information from the file system. The issue occurs when the web server fails to properly validate user-supplied input passed through URL arguments, creating an opportunity for attackers to manipulate file paths and access restricted resources.
The technical exploitation of this vulnerability involves crafting specific URL requests that include directory traversal sequences such as ../ or ..\ to navigate outside the intended web root directory. When the comment2.jse script processes these malicious requests, it does not adequately sanitize the input parameters, resulting in the server executing file operations on arbitrary locations within the file system. This type of vulnerability is classified as a directory traversal attack under CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. The flaw demonstrates weak input validation practices and inadequate access control mechanisms within the web server's scripting environment.
The operational impact of CVE-2002-0323 extends beyond simple unauthorized file access, potentially exposing sensitive system information including configuration files, database credentials, user data, and system logs. Attackers can leverage this vulnerability to gain insights into the server's internal structure, identify running services, and potentially escalate privileges within the system. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the target system. This vulnerability particularly affects web applications that rely on ScriptEase:WebServer for dynamic content generation and file handling operations, making it a significant concern for organizations running legacy web applications that have not been properly updated or patched.
Mitigation strategies for this vulnerability should include immediate patching of the ScriptEase:WebServer software to address the directory traversal flaw in the comment2.jse component. Organizations should implement proper input validation and sanitization mechanisms to prevent malicious path traversal sequences from being processed by the web server. Network-level protections such as web application firewalls and intrusion prevention systems can help detect and block suspicious URL patterns attempting directory traversal attacks. Additionally, system administrators should conduct comprehensive security audits to identify and remediate similar vulnerabilities across other web applications and server components. The vulnerability aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing with Malicious Attachment) as attackers may use such information to craft more sophisticated attacks. Regular security monitoring and vulnerability assessment procedures should be implemented to identify similar weaknesses in web server configurations and prevent exploitation of similar path traversal vulnerabilities in the future.