CVE-2021-3636: redhat openshift

csirt@kutim:~/threat-intel/cve/CVE-2021-3636

CVSS 4.6 · Medium EPSS 0,28%

Kerentanan Improper Certificate Validation pada redhat openshift. Skor CVSS 3.1 4.6 (Medium) menurut NVD.

Deskripsi (NVD)

It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.

Rincian

Terbit di NVD: 30 Juli 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 4.6 (Medium), sumber NVD
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-295: Improper Certificate Validation
CWE-287: Improper Authentication
EPSS (30 hari): 0,28% peluang dieksploitasi; lebih tinggi dari 19,3% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
redhat	openshift	Semua versi sebelum 4.8

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://bugzilla.redhat.com/show_bug.cgi?id=1978621 exploit · issue tracking · patch · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.