Vulnerability in Grafana
CVE-2020-27846
A signature verification vulnerability exists in crewjam/saml. This flaw allows an attacker to bypass SAML Authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
EPSS: 0.049 (91.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Grafana
- Saml_project Saml
- Fedoraproject Fedora — versions 32, 33
- Redhat Enterprise_linux — versions 8.0
- Redhat Openshift_container_platform — versions 3.11, 4.0
- Redhat Openshift_service_mesh — versions 2.0
- N/a Crewjam/saml — versions grafana-7.3.6, grafana-7.2.3, grafana-6.7.5, github.com/crewjam/saml-0.4.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Exploit, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27846?
- CVE-2020-27846 is a critical-severity vulnerability in Grafana, classified under CWE-115. CVSS score: 9.8/10. Published 2020-12-21.
- How severe is CVE-2020-27846?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-27846 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.