CVE-2020-5846: ahsay cloud backup suite

csirt@kutim:~/threat-intel/cve/CVE-2020-5846

CVSS 8.8 · High EPSS 1,4%

Kerentanan Unrestricted Upload of File with Dangerous Type pada ahsay cloud backup suite. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

An insecure file upload and code execution issue was discovered in Ahsay Cloud Backup Suite 8.3.0.30 via a "PUT /obs/obm7/file/upload" request with the base64-encoded pathname in the X-RSW-custom-encode-path HTTP header, and the content in the HTTP request body. It is possible to upload a file into any directory of the server. One can insert a JSP shell into the web server's directory and execute it. This leads to full system access as the configured user (e.g., Administrator) when starting from any authenticated session (e.g., a trial account). This is fixed in the 83/830122/cbs-*-hotfix-task26000 builds.

Rincian

Terbit di NVD: 6 Januari 2020
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-434: Unrestricted Upload of File with Dangerous Type
EPSS (30 hari): 1,4% peluang dieksploitasi; lebih tinggi dari 71,7% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
ahsay	cloud backup suite	Versi 8.3.0.30

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://www.wbsec.nl/ahsay-2/ exploit · 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.