CVE-2021-44684: Command injection in github-todos

Background

github-todos is an npm package that provides a command-line interface for managing GitHub issues as todos. It allows users to interact with their GitHub repositories and perform various operations related to issue management. Unfortunately, version 3.1.0 of github-todos is vulnerable to command injection.

Vulnerability Detail

The vulnerability in github-todos arises from the lack of validation on the range argument used in the _hook subcommand. This argument is directly concatenated and passed to the exec function without proper sanitization. As a result, an attacker can inject arbitrary commands into the range argument, leading to command execution on the host system. This can have severe consequences, such as unauthorized access, data leakage, or even complete compromise of the affected system.

Workaround

As a temporary workaround, users can avoid using the _hook subcommand or refrain from passing user-controlled input to the range argument. By carefully validating and sanitizing any input provided to the range argument, the risk of command injection can be mitigated. Here is an example of how to validate the range argument in a Node.js application:

const range = validateRange(userInput);

function validateRange(input) {
  // Implement your validation logic here
}

Conclusion

In conclusion, github-todos version 3.1.0 is vulnerable to command injection, which can result in unauthorized access, data leakage, or system compromise. Users are advised to update to a patched version of the package and apply proper input validation to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.

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