CVE-2021-32836

Katalog CVE

CVSS 8.1 · High EPSS 2,0%

Kerentanan Improper Control of Generation of Code ('Code Injection') pada zstack. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

ZStack is open source IaaS(infrastructure as a service) software. In ZStack before versions 3.10.12 and 4.1.6 there is a pre-auth unsafe deserialization vulnerability in the REST API. An attacker in control of the request body will be able to provide both the class name and the data to be deserialized and therefore will be able to instantiate an arbitrary type and assign arbitrary values to its fields. This issue may lead to a Denial Of Service. If a suitable gadget is available, then an attacker may also be able to exploit this vulnerability to gain pre-auth remote code execution. For additional details see the referenced GHSL-2021-087.

Rincian

Terbit di NVD

9 September 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

2,0% peluang dieksploitasi; lebih tinggi dari 80,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/zstackio/zstack/security/advisories/GHSA-jfvq-548h-342x advisory pihak ketiga
• https://securitylab.github.com/advisories/GHSL-2021-087-zstack/ exploit · advisory pihak ketiga