Description
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
dexidp dex
< 2.27.0affected
References
- https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md ↗
- https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md ↗
- https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md ↗
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ ↗
- https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 ↗
- https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 ↗
- https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 ↗
- https://github.com/dexidp/dex/releases/tag/v2.27.0 ↗