CVE-2024-23656

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

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.13%
Affected: dexidp dex
Published at:
Updated at:

References

Link Tags
https://github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r exploit
https://github.com/dexidp/dex/issues/2848 issue tracking
https://github.com/dexidp/dex/pull/2964 patch issue tracking
https://github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17 patch
https://github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/serve.go#L425 product

Frequently Asked Questions

What is the severity of CVE-2024-23656?
CVE-2024-23656 has been scored as a high severity vulnerability.
How to fix CVE-2024-23656?
To fix CVE-2024-23656, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-23656 being actively exploited in the wild?
It is possible that CVE-2024-23656 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-23656?
CVE-2024-23656 affects dexidp dex.
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