critical9.8
CVE-2020-27847
Authentication Bypass in dex
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/dexidp/dex | < 2.27.0 | 2.27.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linuxfoundation | Dex | before 2.27.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1907732
- https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
- https://github.com/advisories/GHSA-2x32-jm95-2cpx
- https://nvd.nist.gov/vuln/detail/CVE-2020-27847