CVE-2020-27839
5.4 · MEDIUMOverview
CVE-2020-27839 is a medium-severity vulnerability affecting redhat ceph. It was published on May 26, 2021 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A flaw was found in ceph-dashboard. The JSON Web Token (JWT) used for user authentication is stored by the frontend application in the browser’s localStorage which is potentially vulnerable to attackers via XSS attacks. The highest threat from this vulnerability is to data confidentiality and integrity.
Remediation
Check the references section for vendor advisories and patches from redhat. Update ceph 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 |
|---|---|---|---|
| redhat | ceph | >= 0, < 14.2.17 | Affected |
Frequently Asked Questions
What is CVE-2020-27839?
CVE-2020-27839 is a medium-severity vulnerability affecting redhat ceph. It was published on May 26, 2021 and has a CVSS 3.1 base score of 5.4 (MEDIUM).
How severe is CVE-2020-27839?
This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-27839?
Check the references section for vendor advisories and patches from redhat. Update ceph 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-2020-27839?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-27839 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.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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