CVE-2020-26290

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
Link Resource
https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 Patch Third Party Advisory
https://github.com/dexidp/dex/releases/tag/v2.27.0 Third Party Advisory
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 Third Party Advisory
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md Not Applicable Third Party Advisory
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md Not Applicable Third Party Advisory
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md Not Applicable Third Party Advisory
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 Not Applicable Third Party Advisory
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ Not Applicable Third Party Advisory
https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 Patch Third Party Advisory
https://github.com/dexidp/dex/releases/tag/v2.27.0 Third Party Advisory
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 Third Party Advisory
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md Not Applicable Third Party Advisory
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md Not Applicable Third Party Advisory
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md Not Applicable Third Party Advisory
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 Not Applicable Third Party Advisory
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ Not Applicable Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:dex:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:19

Type Values Removed Values Added
References () https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 - Patch, Third Party Advisory () https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 - Patch, Third Party Advisory
References () https://github.com/dexidp/dex/releases/tag/v2.27.0 - Third Party Advisory () https://github.com/dexidp/dex/releases/tag/v2.27.0 - Third Party Advisory
References () https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 - Third Party Advisory () https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5 - Third Party Advisory
References () https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md - Not Applicable, Third Party Advisory () https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md - Not Applicable, Third Party Advisory
References () https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md - Not Applicable, Third Party Advisory () https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md - Not Applicable, Third Party Advisory
References () https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md - Not Applicable, Third Party Advisory () https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md - Not Applicable, Third Party Advisory
References () https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 - Not Applicable, Third Party Advisory () https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7 - Not Applicable, Third Party Advisory
References () https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ - Not Applicable, Third Party Advisory () https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ - Not Applicable, Third Party Advisory
CVSS v2 : 6.8
v3 : 9.6
v2 : 6.8
v3 : 9.3

Information

Published : 2020-12-28 20:15

Updated : 2024-11-21 05:19


NVD link : CVE-2020-26290

Mitre link : CVE-2020-26290

CVE.ORG link : CVE-2020-26290


JSON object : View

Products Affected

linuxfoundation

  • dex
CWE
CWE-347

Improper Verification of Cryptographic Signature