CVE-2024-23656 — Inadequate Encryption Strength in Dexidp DEX

CWE-326 — Inadequate Encryption StrengthCWE-757 — Algorithm Downgrade5 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.2%
top 52.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Github.com Dexidp DEXDexidp DEXLinuxfoundation DEX
Timeline
PublishedJan 25
Latest updateJun 28

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶Gogithub.com/dexidp_dex2.37.0 — 2.38.0+1
▶CVEListV5dexidp/dex= 2.37.0

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
OSV
Dex discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers in github.com/dexidp/dex↗2024-06-28
▶
OSV
Dex discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers↗2024-01-26
▶
GHSA
Dex discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers↗2024-01-26
▶
CVEList
Dex 2.37.0 is discarding TLSconfig and always serves deprecated TLS 1.0/1.1 and insecure ciphers↗2024-01-25
▶
CVE-2024-23656 — Inadequate Encryption Strength | cvebase