Vulnerability CVE-2020-27839

Vulnerability Name:

CVE-2020-27839 (CCN-202595)

Assigned:

2020-11-24

Published:

2020-11-24

Updated:

2021-06-03

Summary:

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.

CVSS v3 Severity:

5.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
4.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): Required
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): None

7.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L)
6.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): Low

CVSS v2 Severity:

3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:C/I:C/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): High Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Partial

Vulnerability Type:

CWE-522

Vulnerability Consequences:

Cross-Site Scripting

References:

Source: MITRE
Type: CNA
CVE-2020-27839

Source: CCN
Type: Red Hat Bugzilla Bug 1901330
(CVE-2020-27839) - CVE-2020-27839 ceph-dashboard: Don't use Browser's LocalStorage for storing JWT but Secure Cookies with proper HTTP Headers

Source: MISC
Type: Issue Tracking, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1901330

Source: CCN
Type: Ceph Web site
Ceph

Source: XF
Type: UNKNOWN
cephdashboard-cve202027839-xss(202595)

Vulnerable Configuration:

Configuration 1:

cpe:/a:redhat:ceph:*:*:*:*:*:*:*:* (Version < 14.2.17)

OR cpe:/a:redhat:ceph:*:*:*:*:*:*:*:* (Version >= 15.2.0 and < 15.2.9)

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:7460	P	ceph-common-16.2.11.58+g38d6afd3b78-150400.3.6.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3375	P	sysconfig-0.84.0-13.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:95191	P	gnome-photos-40.0-150400.2.6 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:2886	P	ceph-common-16.2.7.654+gd5a90ff46f0-150400.1.4 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:95221	P	openconnect-7.08-6.9.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94516	P	ceph-common-16.2.7.654+gd5a90ff46f0-150400.1.4 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94487	P	Mesa-21.2.4-150400.66.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:24	P	ceph-common-15.2.9.83+g4275378de0-3.17.1 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:953	P	Security update for ldns (Moderate)	2022-03-02
oval:org.opensuse.security:def:5999	P	Security update for virglrenderer (Important)	2022-01-18
oval:org.opensuse.security:def:112053	P	ceph-16.2.6.463+g22e7612f9ad-1.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:101934	P	Security update for the Linux Kernel (Live Patch 1 for SLE 15 SP3) (Important)	2021-11-19
oval:org.opensuse.security:def:62042	P	ceph-common-15.2.9.83+g4275378de0-3.17.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:101200	P	libkpathsea6-6.2.3-19.4 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:100800	P	ceph-common-15.2.9.83+g4275378de0-3.17.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:71783	P	ceph-common-15.2.9.83+g4275378de0-3.17.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:101904	P	Security update for the Linux Kernel (Important)	2021-07-20
oval:org.opensuse.security:def:99647	P	(Important)	2021-06-11
oval:org.opensuse.security:def:99955	P	(Important)	2021-06-07
oval:org.opensuse.security:def:99954	P	(Moderate)	2021-06-04
oval:org.opensuse.security:def:76156	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:9499	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:92299	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:66762	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:99249	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:93049	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:70389	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:9698	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:96921	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:92498	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:67088	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:8748	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:99448	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:93202	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:91909	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:10249	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:98859	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:92697	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:69639	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:75830	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:8943	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:108600	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:92104	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:5673	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:99054	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:92896	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:69838	P	Security update for ceph (Important)	2021-05-04
oval:org.opensuse.security:def:111316	P	Security update for ceph (Moderate)	2021-04-12
oval:org.opensuse.security:def:96832	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:73586	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:107866	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:75800	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:103014	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:108570	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:64464	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:5643	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:66732	P	Security update for ceph (Moderate)	2021-04-08
oval:org.opensuse.security:def:117381	P	Security update for ceph (Moderate)	2021-04-08

BACK