CVE-2021-43437

Katalog CVE

CVSS 8.8 · High EPSS 1,3%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada engineers online portal project engineers online portal. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

In sourcecodetester Engineers Online Portal as of 10-21-21, an attacker can manipulate the Host header as seen by the web application and cause the application to behave in unexpected ways. Very often multiple websites are hosted on the same IP address. This is where the Host Header comes in. This header specifies which website should process the HTTP request. The web server uses the value of this header to dispatch the request to the specified website. Each website hosted on the same IP address is called a virtual host. And It's possible to send requests with arbitrary Host Headers to the first virtual host.

Rincian

Terbit di NVD

20 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

EPSS (30 hari)

1,3% peluang dieksploitasi; lebih tinggi dari 69,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://portswigger.net/web-security/host-header advisory pihak ketiga
• https://medium.com/%40mayhem7999/cve-2021-43437-5c5e3b977e84