An information-disclosure flaw was found in Grafana through 6.7.3. The database directory /var/lib/grafana and database file /var/lib/grafana/grafana.db are world readable. This can result in exposure of sensitive information (e.g., cleartext or encrypted datasource passwords). Notable fixes which removes readable bits: - change permissions of /var/lib/grafana/grafana.db to 640 and user/group grafana:grafana - change permissions of /var/lib/grafana to 750 Commits: https://src.fedoraproject.org/rpms/grafana/c/fab93d67363eb0a9678d9faf160cc88237f26277 https://src.fedoraproject.org/rpms/grafana/c/925160cd8de011ab33609023abf961f4ff6ba804 https://src.fedoraproject.org/rpms/grafana/c/f7791a6ad70b7e9da1a30774434fed0eaa5a04a1
Created grafana tracking bugs for this issue: Affects: fedora-all [bug 1828735]
Mitigation: Manually change the directory and files permissions to remove readable bits for others: # chmod 750 /var/lib/grafana # chmod 640 /var/lib/grafana/grafana.db # chown grafana:grafana /var/lib/grafana/grafana.db
ServiceMesh grafana also sets its grafana.db permissions to world readable, however it's located at /data/grafana: bash-4.4$ ls -lah /data/grafana/grafana.db -rw-r--r--. 1 1000570000 1000570000 992K May 5 04:36 grafana.db
Lowered the Severity Rating for ServiceMesh grafana. It would require an unlikely set of circumstances for this to be exploited (also increasing the attack complexity) due to grafana running within a container in ServiceMesh.
OCP 3.11 installs Grafana 5.4.3 which is vulnerable to this issue, despite being in the 5.x version series.
Statement: The versions of grafana shipped with Red Hat Gluster Storage 3, Red Hat Ceph Storage 3 and 4 sets the world readable permissions on grafana database directory and file, hence affected by this vulnerability. In both OpenShift Container Platform (OCP) and OpenShift ServiceMesh (OSSM), the grafana containers set their database files to world readable. However, as it's run in a container image with SELinux MCS labels this prevents other processes on the host from reading it. Therefore, for both (OCP and OSSM) the impact is low.
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-12458
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4682 https://access.redhat.com/errata/RHSA-2020:4682