Vulnerability in Dexidp Dex
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Dexidp Dex — versions = 2.37.0
- Linuxfoundation Dex — versions 2.37.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/dexidp/dex/security/advisories/GHSA-gr79-9v6v-gc9r (Exploit)
- github.com/dexidp/dex/issues/2848 (Issue Tracking)
- github.com/dexidp/dex/pull/2964 (Patch, Issue Tracking)
- github.com/dexidp/dex/commit/5bbdb4420254ba73b9c4df4775fe7bdacf233b17 (Patch)
- github.com/dexidp/dex/blob/70d7a2c7c1bb2646b1a540e49616cbc39622fb83/cmd/dex/ser… (Product)
Frequently asked questions
- What is CVE-2024-23656?
- CVE-2024-23656 is a high-severity vulnerability in Dexidp Dex, classified under Inadequate Encryption Strength. CVSS score: 7.5/10. Published 2024-01-25.
- How severe is CVE-2024-23656?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-23656 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.