CVE-2025-59046

Comprehensive Technical Analysis of CVE-2025-59046

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-59046 CVSS Score: 9.8

The vulnerability in the interactive-git-checkout npm package is a command injection flaw. This type of vulnerability allows an attacker to execute arbitrary commands on the host system by manipulating the input passed to the git checkout command. The high CVSS score of 9.8 indicates a critical severity due to the potential for complete system compromise.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• User Input Manipulation: An attacker can exploit this vulnerability by providing a maliciously crafted branch name that includes command injection payloads.
• Supply Chain Attack: If an attacker can manipulate the branch names in a repository that uses interactive-git-checkout, they can inject commands that will be executed on the developer's machine.

Exploitation Methods:

• Command Injection: By injecting shell commands into the branch name, an attacker can execute arbitrary code on the system. For example, a branch name like master; rm -rf / could potentially delete all files on the system.
• Privilege Escalation: If the interactive-git-checkout tool is run with elevated privileges, the injected commands could gain higher access levels, leading to further system compromise.

3. Affected Systems and Software Versions

Affected Software:

• interactive-git-checkout npm package versions up to and including 1.1.4.

Affected Systems:

• Any system where the vulnerable versions of the interactive-git-checkout package are installed and used. This includes development environments, CI/CD pipelines, and any other systems that interact with Git repositories using this tool.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update to the Latest Version: Upgrade to the fixed version of the interactive-git-checkout package (commit 8dd832dd302af287a61611f4f85e157cd1c6bb41).
• Input Validation: Implement strict input validation and sanitization for branch names to prevent command injection.
• Least Privilege Principle: Ensure that the interactive-git-checkout tool is run with the least privileges necessary to minimize potential damage.

Long-Term Strategies:

• Regular Audits: Conduct regular security audits of all third-party packages and dependencies.
• Security Training: Educate developers on secure coding practices and the risks associated with command injection vulnerabilities.
• Automated Scanning: Use automated tools to scan for vulnerabilities in dependencies and update them promptly.

5. Impact on Cybersecurity Landscape

The discovery of this vulnerability highlights the importance of secure coding practices, especially in open-source projects. It underscores the need for:

• Robust Input Validation: Ensuring that all user inputs are properly validated and sanitized.
• Supply Chain Security: Enhancing the security of the software supply chain to prevent the introduction of vulnerabilities through third-party dependencies.
• Community Collaboration: Encouraging collaboration within the open-source community to identify and mitigate vulnerabilities quickly.

6. Technical Details for Security Professionals

Vulnerability Details:

• The vulnerability arises from the use of the Node.js child process module's exec() function without proper input validation or sanitization.
• The branch name input is directly passed to the git checkout command, allowing for command injection.

Code Example:

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

function checkoutBranch(branchName) {
    exec(`git checkout ${branchName}`, (error, stdout, stderr) => {
        if (error) {
            console.error(`Error: ${error.message}`);
            return;
        }
        if (stderr) {
            console.error(`Stderr: ${stderr}`);
            return;
        }
        console.log(`Stdout: ${stdout}`);
    });
}

Fix:

• The fix involves using a safer method to execute the git checkout command, such as using spawn() with arguments to avoid command injection.

Fixed Code Example:

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

function checkoutBranch(branchName) {
    const git = spawn('git', ['checkout', branchName]);

    git.stdout.on('data', (data) => {
        console.log(`Stdout: ${data}`);
    });

    git.stderr.on('data', (data) => {
        console.error(`Stderr: ${data}`);
    });

    git.on('close', (code) => {
        console.log(`Child process exited with code ${code}`);
    });
}

References:

• GitHub Commit Fix
• GitHub Security Advisory

By addressing this vulnerability promptly and adopting best practices, organizations can significantly reduce the risk of command injection attacks and enhance their overall cybersecurity posture.