CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 1CVE-2024-23656 – Dex 2.37.0 is discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers
https://notcve.org/view.php?id=CVE-2024-23656
25 Jan 2024 — Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex 2.37.0 serves HTTPS with insecure TLS 1.0 and TLS 1.1. `cmd/dex/serve.go` line 425 seemingly sets TLS 1.2 as minimum version, but the whole `tlsConfig` is ignored after `TLS cert reloader` was introduced in v2.37.0. Configured cipher suites are not respected either. This issue is fixed in Dex 2.38.0. • https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425 • CWE-326: Inadequate Encryption Strength CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade') •
CVSS: 9.3EPSS: 1%CPEs: 1EXPL: 1CVE-2022-39222 – OAuth authorization code exposure in Dex
https://notcve.org/view.php?id=CVE-2022-39222
06 Oct 2022 — Dex is an identity service that uses OpenID Connect to drive authentication for other apps. Dex instances with public clients (and by extension, clients accepting tokens issued by those Dex instances) are affected by this vulnerability if they are running a version prior to 2.35.0. An attacker can exploit this vulnerability by making a victim navigate to a malicious website and guiding them through the OIDC flow, stealing the OAuth authorization code in the process. The authorization code then can be exchan... • https://github.com/dexidp/dex/commit/49471b14c8080ddb034d4855841123d378b7a634 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-862: Missing Authorization •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-27847
https://notcve.org/view.php?id=CVE-2020-27847
28 May 2021 — A vulnerability exists in the SAML connector of the github.com/dexidp/dex library used to process SAML Signature Validation. This flaw allows an attacker to bypass SAML authentication. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects dex versions before 2.27.0. Se presenta una vulnerabilidad en el conector SAML de la biblioteca github.com/dexidp/dex que es usado para procesar la comprobación de firma SAML. • https://bugzilla.redhat.com/show_bug.cgi?id=1907732 • CWE-228: Improper Handling of Syntactically Invalid Structure •
CVSS: 9.6EPSS: 0%CPEs: 1EXPL: 0CVE-2020-26290 – Critical security issues in XML encoding in Dex
https://notcve.org/view.php?id=CVE-2020-26290
28 Dec 2020 — 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). Dex es un proveedor federado de OpenID Connect escrito en Go. • https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8 • CWE-347: Improper Verification of Cryptographic Signature •