Vulnerability · Published May 26, 2021 · Assigned by redhat

CVE-2020-27839

Medium 5.4

In plain English

A medium-severity security flaw in ceph-dashboard. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)2.4%top 15.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12ceph14.2.18-1DEBIAN-CVE-2020-27839
Debian:13ceph14.2.18-1DEBIAN-CVE-2020-27839
Debian:14ceph14.2.18-1DEBIAN-CVE-2020-27839

Affected products (as reported)

VendorProductVersions
n/a ceph-dashboard ceph-dashboard 14.2.17, ceph-dashboard 15.2.9

Weakness: CWE-522

References