CVE-2021-21305
7.4 · HIGHOverview
CVE-2021-21305 is a high-severity vulnerability affecting carrierwave_project carrierwave. It was published on February 8, 2021 and has a CVSS 3.1 base score of 7.4 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
CarrierWave is an open-source RubyGem which provides a simple and flexible way to upload files from Ruby applications. In CarrierWave before versions 1.3.2 and 2.1.1, there is a code injection vulnerability. The "#manipulate!" method inappropriately evals the content of mutation option(:read/:write), allowing attackers to craft a string that can be executed as a Ruby code. If an application developer supplies untrusted inputs to the option, it will lead to remote code execution(RCE). This is fixed in versions 1.3.2 and 2.1.1.
Remediation
Check the references section for vendor advisories and patches from carrierwave_project. Update carrierwave 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 |
|---|---|---|---|
| carrierwave_project | carrierwave | >= 0, < 1.3.2 | Affected |
References
Frequently Asked Questions
What is CVE-2021-21305?
CVE-2021-21305 is a high-severity vulnerability affecting carrierwave_project carrierwave. It was published on February 8, 2021 and has a CVSS 3.1 base score of 7.4 (HIGH).
How severe is CVE-2021-21305?
This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-21305?
Check the references section for vendor advisories and patches from carrierwave_project. Update carrierwave 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-2021-21305?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-21305 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
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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