csirt@kutim:~/threat-intel/cve/CVE-2021-37705

Katalog CVE

CVSS 10.0 · Critical EPSS 2,4%

Kerentanan Improper Authorization pada microsoft onefuzz. Skor CVSS 3.1 10.0 (Critical) menurut NVD.

Deskripsi (NVD)

OneFuzz is an open source self-hosted Fuzzing-As-A-Service platform. Starting with OneFuzz 2.12.0 or greater, an incomplete authorization check allows an authenticated user from any Azure Active Directory tenant to make authorized API calls to a vulnerable OneFuzz instance. To be vulnerable, a OneFuzz deployment must be both version 2.12.0 or greater and deployed with the non-default --multi_tenant_domain option. This can result in read/write access to private data such as software vulnerability and crash information, security testing tools and proprietary code and symbols. Via authorized API calls, this also enables tampering with existing data and unauthorized code execution on Azure compute resources. This issue is resolved starting in release 2.31.0, via the addition of application-level check of the bearer token's `issuer` against an administrator-configured allowlist. As a workaround users can restrict access to the tenant of a deployed OneFuzz instance < 2.31.0 by redeploying in the default configuration, which omits the `--multi_tenant_domain` option.

Rincian

Terbit di NVD
13 Agustus 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
10.0 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-285: Improper Authorization
CWE-346: Origin Validation Error
CWE-863: Incorrect Authorization
EPSS (30 hari)
2,4% peluang dieksploitasi; lebih tinggi dari 83,7% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
microsoft onefuzz Versi 2.12.0 hingga sebelum 2.31.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.