CVE-2020-26290
CRITICAL
9,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: high
Integrity: high
Availability: none
MEDIUM
6,8
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial
Description
AI Translation Available
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).
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0050
Percentile
0,7th
Updated
EPSS Score Trend (Last 90 Days)
347
Improper Verification of Cryptographic Signature
DraftCommon Consequences
Security Scopes Affected:
Access Control
Integrity
Confidentiality
Potential Impacts:
Gain Privileges Or Assume Identity
Modify Application Data
Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
Application
Dex by Linuxfoundation
Version Range Affected
To
2.27.0
(exclusive)
CPE Identifier
View Detailed Analysis
cpe:2.3:a:linuxfoundation:dex:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8
https://github.com/dexidp/dex/releases/tag/v2.27.0
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/un…
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/un…
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/un…
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-…
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/
https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8
https://github.com/dexidp/dex/releases/tag/v2.27.0
https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/un…
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/un…
https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/un…
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-…
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/