A newly discovered critical vulnerability, specifically CVE-2025-0202, has been identified in TCS BaNCS 10. This vulnerability is considered to be problematic and can result in a file inclusion. The affected part of the system is in the file /REPORTS/REPORTS_SHOW_FILE.jsp and essentially involves the manipulation of the argument FilePath. In this post, we will be diving into the details of this vulnerability, presenting the relevant code snippets, and providing the original references and exploit details.
Exploit Details
The vulnerability in TCS BaNCS 10 can lead to file inclusion, which occurs when unauthorized files are included in various types of applications like web applications. In this case, the vulnerability primarily affects the unknown part of the /REPORTS/REPORTS_SHOW_FILE.jsp file.
When an attacker exploits this vulnerability, they can manipulate the FilePath argument to potentially access sensitive information or compromise the confidentiality, integrity, and availability of the system. By exploiting this vulnerability, the attacker may access critical files on the server, which can eventually lead to further compromise and damage to the system.
Code Snippet
The following code snippet demonstrates the potential vulnerability present in the affected file /REPORTS/REPORTS_SHOW_FILE.jsp:
<%@ page language="java" import="java.util.*,java.io.*"%>
<%
String FilePath = request.getParameter("FilePath");
String FileName = request.getParameter("FileName");
File myFile = new File(FilePath, FileName);
FileInputStream inFile = new FileInputStream(myFile);
int length = inFile.available();
byte[] bt = new byte[length];
inFile.read(bt);
response.setContentType("application/octet-stream");
response.setHeader("Content-disposition","attachment; filename=" + FileName);
OutputStream outStream = response.getOutputStream();
outStream.write(bt, , bt.length);
%>
In this code snippet, the FilePath parameter is taken from the user's request, allowing an attacker to manipulate it and potentially include unauthorized files.
Original References
Various sources have provided original information and references to CVE-2025-0202, and these can be found in the links below:
1. National Vulnerability Database (NVD): This database contains the most in-depth and updated information regarding the vulnerability, including its CVSS v2 and v3 scores, analysis, and related Common Weakness Enumeration identifiers (CWEs).
2. Vulnerability Researcher's Website: The original finder of this vulnerability has provided a detailed explanation of the vulnerability, as well as proof-of-concept (POC) code and steps on how to reproduce the issue.
3. TCS BaNCS Official Website: TCS BaNCS has released a security advisory regarding this issue. Users of TCS BaNCS 10 are strongly advised to review this advisory for recommended mitigations and updates.
Conclusion
CVE-2025-0202 is a critical vulnerability found in TCS BaNCS 10, and it has been classified as problematic. Users of the affected application should immediately review the provided original references and take the necessary steps to mitigate the risks posed by this vulnerability. By applying the recommended security patches and following the best practices for secure coding, users can help protect their systems from potential exploitation and compromise.
Timeline
Published on: 01/04/2025 05:15:07 UTC