CVE-2020-27846

CWE-115CWE-287 — Improper Authentication6 documents5 sources
Severity
9.8CRITICAL
EPSS
7.5%
top 8.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Github.com Crewjam/samlGrafana GrafanaSaml Project Saml+5 more
Timeline
PublishedDec 21
Latest updateJun 23

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages5 packages

▶CVEListV5crewjam/samlgrafana-7.3.6, grafana-7.2.3, grafana-6.7.5, github.com/crewjam/saml-0.4.3
▶NVDsaml_project/saml< 0.4.3
▶NVDgrafana/grafana7.0.0 — 7.2.3+2

Also affects: Fedora 32, 33, Enterprise Linux 8.0, Openshift Container Platform 3.11, 4.0

Patches

Patch: bugzilla.redhat.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

4
OSV
XML Processing error in github.com/crewjam/saml↗2021-06-23
▶
GHSA
XML Processing error in github.com/crewjam/saml↗2021-06-23
▶
OSV
Signature validation bypass due to XML processing error in github.com/crewjam/saml↗2021-04-14
▶
CVEList
CVE-2020-27846: A signature verification vulnerability exists in crewjam/saml↗2020-12-21
▶

📋Vendor Advisories

1
Red Hat
crewjam/saml: authentication bypass in saml authentication↗2020-12-17
▶