CVE-2021-31228: hcc-embedded nichestack

csirt@kutim:~/threat-intel/cve/CVE-2021-31228

CVSS 7.5 · High EPSS 1,3%

Kerentanan Use of Insufficiently Random Values pada hcc-embedded nichestack. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

An issue was discovered in HCC embedded InterNiche 4.0.1. This vulnerability allows the attacker to predict a DNS query's source port in order to send forged DNS response packets that will be accepted as valid answers to the DNS client's requests (without sniffing the specific request). Data is predictable because it is based on the time of day, and has too few bits.

Rincian

Terbit di NVD: 19 Agustus 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-330: Use of Insufficiently Random Values
EPSS (30 hari): 1,3% peluang dieksploitasi; lebih tinggi dari 69,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
hcc-embedded	nichestack	Semua versi sebelum 4.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ mitigasi · advisory pihak ketiga
https://www.kb.cert.org/vuls/id/608209 advisory pihak ketiga · pemerintah AS

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.