// For flags

CVE-2020-27839

ceph-dashboard: Don't use Browser's LocalStorage for storing JWT but Secure Cookies with proper HTTP Headers

Severity Score

5.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se encontró un fallo en ceph-dashboard. El programa JSON Web Token (JWT) usado para la autenticación del usuario es almacenada en la aplicación frontend en el almacenamiento local del navegador, que es potencialmente vulnerable a atacantes por medio de ataques de tipo XSS. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos

Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services. The ceph-ansible package provides Ansible playbooks for installing, maintaining, and upgrading Red Hat Ceph Storage. The tcmu-runner packages provide a service that handles the complexity of the LIO kernel target's userspace passthrough interface. It presents a C plugin API for extension modules that handle SCSI requests in ways not possible or suitable to be handled by LIO's in-kernel backstores. Issues addressed include cross site scripting and remote shell upload vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-10-27 CVE Reserved
  • 2021-04-12 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-07-05 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-522: Insufficiently Protected Credentials
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
Search vendor "Redhat"
 Ceph
Search vendor "Redhat" for product "Ceph"
 < 14.2.17
Search vendor "Redhat" for product "Ceph" and version " < 14.2.17"
-
Affected
Redhat
Search vendor "Redhat"
 Ceph
Search vendor "Redhat" for product "Ceph"
 >= 15.2.0 < 15.2.9
Search vendor "Redhat" for product "Ceph" and version " >= 15.2.0 < 15.2.9"
-
Affected