CVE-2018-6342
9.8 · CRITICALOverview
CVE-2018-6342 is a critical-severity vulnerability affecting facebook react-dev-utils. It was published on December 31, 2018 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.
Remediation
Check the references section for vendor advisories and patches from facebook. Update react-dev-utils to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| react-dev-utils | >= 1.0.0, < 1.0.4 | Affected |
Frequently Asked Questions
What is CVE-2018-6342?
CVE-2018-6342 is a critical-severity vulnerability affecting facebook react-dev-utils. It was published on December 31, 2018 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2018-6342?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-6342?
Check the references section for vendor advisories and patches from facebook. Update react-dev-utils to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-6342?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-6342 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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