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CVE-2024-23656

Dex 2.37.0 is discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers

Published: Jan 25, 2024Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-326
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.4%
Top 65.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-326CWE-757

Affected Products

dexlinuxfoundation
Mixed
AI / ML / ml-framework
github.com/dexidp/dexGoOSS Libraries
dexdexidp
On-prem
Security Products / identity-access-mgmt
linuxfoundationoss-projectUSAI / MLaka yocto, pytorch, everest
gopackage-ecosystemOSS Libraries
dexidpcommercialSecurity Products

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425
github.com
https://github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17
github.com
https://github.com/dexidp/dex/issues/2848
github.com
and 4 more references View all →

Timeline

Published
Jan 25, 2024
Last Updated
Nov 21, 2024

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