Vulnerability in Linuxfoundation Dex
CVE-2020-27847
A vulnerability exists in the SAML connector of the github.com/dexidp/dex library used to process SAML Signature Validation. This flaw allows an attacker to bypass SAML authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects dex versions before 2.27.0.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.017 (77.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Linuxfoundation Dex
- Dexidp/dex — versions dex 2.27.0
Weakness classification (CWE)
References
- mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ (Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27847?
- CVE-2020-27847 is a critical-severity vulnerability in Linuxfoundation Dex, classified under CWE-228. CVSS score: 9.8/10. Published 2021-05-28.
- How severe is CVE-2020-27847?
- Critical severity. CVSS v3 base score is 9.8 out of 10.