CVE-2020-7619: Command Injection in get-git-data

Background

get-git-data is an npm package that allows users to retrieve data from a Git repository. It provides a convenient way to access information such as commit history, branches, and tags. However, versions up to 1.3.1 are vulnerable to Command Injection, which allows an attacker to execute arbitrary commands by manipulating the arguments passed to get-git-data.

Vulnerability Detail

The Command Injection vulnerability in get-git-data arises from insufficient input validation. Attackers can exploit this vulnerability by injecting malicious commands as part of the arguments provided to get-git-data. This can lead to unauthorized access, data leakage, or even remote code execution on the host system. The severity of this vulnerability is rated as CRITICAL with a CVSS score of 9.8.

Workaround

As a temporary workaround, users can sanitize and validate the input arguments before passing them to get-git-data. This can be done by implementing strict input validation and using techniques like whitelisting or blacklisting to filter out any potentially malicious commands. Here's an example of how to sanitize the arguments in Node.js:

const { exec } = require('child_process');

function sanitizeArguments(args) {
  // Implement your input validation logic here
  // ... 
  return args;
}

const sanitizedArgs = sanitizeArguments(userProvidedArgs);
exec(`get-git-data ${sanitizedArgs}`, (error, stdout, stderr) => {
  // Handle the command execution result
});

Conclusion

The Command Injection vulnerability in get-git-data can have severe consequences, including unauthorized access and remote code execution. It is crucial to promptly update to a patched version of get-git-data (1.3.2 or higher) to mitigate this vulnerability. For further assistance and support in vulnerability remediation, please contact DevNack.com.

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