CVE-2000-1224 in Resin
Summary
by MITRE
Caucho Technology Resin 1.2 and possibly earlier allows remote attackers to view JSP source via an HTTP request to a .jsp file with certain characters appended to the file name, such as (1) "..", (2) "%2e..", (3) "%81", (4) "%82", and others.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 10/27/2024
This vulnerability in Caucho Technology Resin 1.2 represents a classic path traversal flaw that enables remote attackers to access sensitive JSP source code files through carefully crafted HTTP requests. The vulnerability stems from insufficient input validation and improper handling of special characters in file path resolution, allowing malicious users to manipulate file access patterns and bypass normal security restrictions. The specific attack vectors involve appending characters such as "..", "%2e..", "%81", and "%82" to JSP file names, which exploit the application's failure to properly sanitize user-supplied input before processing file requests. This issue affects not only Resin 1.2 but potentially earlier versions, indicating a widespread problem in the software's file access mechanisms.
The technical implementation of this vulnerability exploits the way Resin processes file paths when handling HTTP requests for JSP files. When a request is made to a .jsp file with the specified special characters appended, the application's internal path resolution logic fails to properly validate or normalize the file path, allowing attackers to traverse directory structures and access files outside the intended web root directory. This occurs because the software does not adequately filter or sanitize the characters that could be used to manipulate the file system access pattern, particularly when these characters are interpreted as directory traversal indicators. The vulnerability essentially allows an attacker to perform a directory traversal attack by exploiting the application's failure to properly resolve relative paths and validate file access requests.
The operational impact of this vulnerability is significant as it provides attackers with access to sensitive source code files that may contain database connection strings, application logic, business rules, and other proprietary information. The exposure of JSP source code can lead to complete application compromise, as attackers can analyze the code to identify additional vulnerabilities, understand application architecture, and develop more sophisticated attack strategies. This source code disclosure can result in intellectual property theft, exposure of sensitive configuration details, and provide attackers with valuable information for further exploitation attempts. The vulnerability also potentially exposes the underlying application infrastructure and implementation details that could be leveraged in subsequent attacks.
Organizations affected by this vulnerability should implement immediate mitigations including upgrading to patched versions of Resin software, implementing proper input validation and sanitization for all file access operations, and configuring web application firewalls to detect and block suspicious path traversal patterns. The mitigation strategies should focus on implementing proper path normalization and validation techniques that prevent special characters from being interpreted as directory traversal indicators. Security measures should also include restricting file access permissions, implementing proper access controls, and monitoring for unusual file access patterns that could indicate exploitation attempts. This vulnerability aligns with CWE-22 Path Traversal and follows patterns commonly associated with ATT&CK technique T1083 File and Directory Discovery, highlighting the importance of robust input validation and secure file access controls in web application security.