CVE-2020-28361: kamailio

csirt@kutim:~/threat-intel/cve/CVE-2020-28361

CVSS 5.4 · Medium EPSS 1,1%

Kerentanan Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') pada kamailio. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

Kamailio before 5.4.0, as used in Sip Express Router (SER) in Sippy Softswitch 4.5 through 5.2 and other products, allows a bypass of a header-removal protection mechanism via whitespace characters. This occurs in the remove_hf function in the Kamailio textops module. Particular use of remove_hf in Sippy Softswitch may allow skilled attacker having a valid credential in the system to disrupt internal call start/duration accounting mechanisms leading potentially to a loss of revenue.

Rincian

Terbit di NVD: 18 November 2020
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
EPSS (30 hari): 1,1% peluang dieksploitasi; lebih tinggi dari 65,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
kamailio	kamailio	Semua versi sebelum 5.4.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://packetstormsecurity.com/files/159030/Kamailio-5.4.0-Header-Smuggling.html exploit · advisory pihak ketiga · vdb entry
https://support.sippysoft.com/support/discussions/topics/3000179616 permissions required

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.