CVE-2024-23656

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425	Product
https://github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17	Patch
https://github.com/dexidp/dex/issues/2848	Issue Tracking
https://github.com/dexidp/dex/pull/2964	Issue Tracking Patch
https://github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r	Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:dex:2.37.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-01-25 20:15

Updated : 2024-01-31 23:26

NVD link : CVE-2024-23656

Mitre link : CVE-2024-23656

CVE.ORG link : CVE-2024-23656

JSON object : View

Products Affected

linuxfoundation

dex

CWE

CWE-326

Inadequate Encryption Strength

CWE-757

Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

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