Vulnerability Details : CVE-2020-27839
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.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2020-27839
- cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-27839
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-27839
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2020-27839
-
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.Assigned by: secalert@redhat.com (Primary)
References for CVE-2020-27839
-
https://bugzilla.redhat.com/show_bug.cgi?id=1901330
1901330 – (CVE-2020-27839) CVE-2020-27839 ceph-dashboard: Don't use Browser's LocalStorage for storing JWT but Secure Cookies with proper HTTP HeadersIssue Tracking;Vendor Advisory
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