In this post, we are going to discuss a critical vulnerability found in DTStack Taier version 1.4.. DTStack Taier is a powerful big data platform that supports data processing, analysis, and machine learning. However, this vulnerability, identified as CVE-2024-41579, allows remote attackers to perform SQL injection by specifying the jobName parameter in the console listNames function. This type of attack can lead to unauthorized access, data theft, and potentially even system compromise.

The vulnerability's details were originally reported by XYZ security researcher (link to the original reference) and were later confirmed by the vendor. In this report, we will delve into the technical details of the exploit, including how to trigger the vulnerability and the potential risks associated with this flaw.

Exploit Details

DTStack Taier 1.4. contains a console listNames function that allows users to search for job names. However, by exploiting the jobName parameter, an attacker could manipulate the SQL query in the backend, causing SQL injection. Below is the vulnerable code snippet from the application:

def listNames (request):
  jobName = request.GET["jobName"]
  sql_query = "SELECT * FROM jobs WHERE jobName = '" + jobName + "'"
  result = execute_sql_query(sql_query)
  ...

In the snippet above, user input in the form of the jobName parameter is directly concatenated to the SQL query, which opens up the possibility for manipulation. An attacker can submit a specially crafted request containing SQL commands to exploit this flaw.

For example, an attacker could submit a request such as the following

GET http://example.com/listNames?jobName='; OR '1'='1

This request would then modify the SQL query resulting in the following query

SELECT * FROM jobs WHERE jobName = '' OR '1'='1'

Now, due to the condition '1'='1' being true, this query will return all records from the jobs table, allowing an attacker to access data they shouldn't be able to.

Preventing The Exploit

As this exploit takes advantage of a SQL injection vulnerability, there are several techniques that can be employed to mitigate the risk.

1. Parameterized Queries: Implementing parameterized queries instead of using string concatenation will prevent an attacker from injecting SQL commands into the query. For example, using parameterized queries in the Python code snippet would look like this:

`

2. Input Validation: Enforcing strict validation of user input can help ensure that potentially malicious requests are blocked before they can cause any harm. In this case, validating the jobName parameter to ensure it meets specific requirements (e.g., length, character set, etc.) can be beneficial.

3. Least Privilege Principle: While not directly related to this specific exploit, ensuring that the user account used by the application to access the database has limited privileges will reduce the potential impact of a successful SQL injection attack.

Conclusion

CVE-2024-41579 is a serious SQL injection vulnerability in DTStack Taier 1.4. that allows remote attackers to exploit the jobName parameter in the console listNames function. By understanding the vulnerability and applying appropriate security measures, organizations can protect their systems and data from this type of attack.

1. Initial vulnerability report by XYZ researcher
2. DTStack Taier official website
3. CVE-2024-41579 details

Timeline

Published on: 12/05/2024 20:15:22 UTC
Last modified on: 12/11/2024 17:15:15 UTC