CVE - CVE-2020-26290

CVE-ID
CVE-2020-26290	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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).
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 URL:https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 MISC:https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 URL:https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 MISC:https://github.com/dexidp/dex/releases/tag/v2.27.0 URL:https://github.com/dexidp/dex/releases/tag/v2.27.0 MISC:https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md URL:https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md MISC:https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md URL:https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md MISC:https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md URL:https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md MISC:https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 URL:https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 MISC:https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ URL:https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20201001	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20201001)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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