PublicDateAtUSN: 2021-05-26 22:15:00 UTC
Candidate: CVE-2020-27839
PublicDate: 2021-05-26 22:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27839
 https://github.com/ceph/ceph/pull/38259
 https://ubuntu.com/security/notices/USN-4998-1
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.
Ubuntu-Description:
 It was discovered that the Ceph dashboard was susceptible to a
 cross-site scripting attack. An attacker could use this to expose
 sensitive information or gain unintended access.
Notes:
Mitigation:
Bugs:
 https://tracker.ceph.com/issues/44591
 https://tracker.ceph.com/issues/48739 (bp)
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N [5.4 MEDIUM]


Patches_ceph:
 upstream: https://github.com/ceph/ceph/commit/23f2604d6f9ac16779b4ac43aab6e4e434f2e8ec
 upstream: https://github.com/ceph/ceph/commit/e5501a34ee8237dfe64104c612c812b16121db6d (octopus)
upstream_ceph: released (16.1.0,15.2.9)
precise/esm_ceph: ignored (end of ESM support, was needs-triage)
trusty_ceph: ignored (out of standard support)
trusty/esm_ceph: not-affected
xenial_ceph: ignored (end of standard support, was needed)
esm-infra/xenial_ceph: not-affected
bionic_ceph: not-affected (12.2.13-0ubuntu0.18.04.8)
focal_ceph: released (15.2.12-0ubuntu0.20.04.1)
groovy_ceph: released (15.2.12-0ubuntu0.20.10.1)
hirsute_ceph: released (16.1.0-0ubuntu2)
impish_ceph: released (16.1.0-0ubuntu2)
jammy_ceph: released (16.1.0-0ubuntu2)
devel_ceph: released (16.1.0-0ubuntu2)