VulnerabilityModified
CVE-2020-27846
A signature verification vulnerability exists in crewjam/saml.
CRITICAL 9.8EPSS 4.87%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.87% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-115
- Affected
- grafana/grafana · saml project/saml · redhat/openshift container platform · redhat/openshift service mesh · redhat/enterprise linux · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1907670Issue Tracking, Patch, Third Party Advisory
- https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9Third Party Advisory
- https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM/
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0002/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1907670Issue Tracking, Patch, Third Party Advisory
- https://github.com/crewjam/saml/security/advisories/GHSA-4hq8-gmxx-h6w9Third Party Advisory
- https://grafana.com/blog/2020/12/17/grafana-6.7.5-7.2.3-and-7.3.6-released-with-important-security-fix-for-grafana-enterprise/Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3YUTKIRWT6TWU7DS6GF3EOANVQBFQZYI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICP3YRY2VUCNCF2VFUSK77ZMRIC77FEM/
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/Exploit, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0002/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.