CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
73.7%
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).
Vendor | Product | Version | CPE |
---|---|---|---|
linuxfoundation | dex | * | cpe:2.3:a:linuxfoundation:dex:*:*:*:*:*:*:*:* |
[
{
"product": "dex",
"vendor": "dexidp",
"versions": [
{
"status": "affected",
"version": "< 2.27.0"
}
]
}
]
github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8
github.com/dexidp/dex/releases/tag/v2.27.0
github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md
github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md
github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md
github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7
mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
73.7%