CVE-2024-23656
HIGHdex 2.37.0-2.37.x - Algorithm Downgrade via TLS Config Ignore
Title source: llmDescription
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.
References (5)
Core 5
Core References
Exploit x_refsource_confirm
https://github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r
Issue Tracking x_refsource_misc
https://github.com/dexidp/dex/issues/2848
Issue Tracking, Patch x_refsource_misc
https://github.com/dexidp/dex/pull/2964
Patch x_refsource_misc
https://github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17
Product x_refsource_misc
https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425
Scores
CVSS v3
7.5
EPSS
0.0043
EPSS Percentile
34.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-757
CWE-326
Status
published
Products (2)
dexidp/dex
2.37.0 - 2.38.0Go
linuxfoundation/dex
2.37.0
Published
Jan 25, 2024
Tracked Since
Feb 18, 2026