Auth bypass in Microsoft Onefuzz
CVE-2021-37705
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 call…
EPSS: 0.024 (82.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L.
Affected products
- Microsoft Onefuzz — versions >= 2.12.0, < 2.31.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-37705?
- CVE-2021-37705 is a critical-severity vulnerability in Microsoft Onefuzz, classified under Improper Authorization. CVSS score: 10.0/10. Published 2021-08-13.
- How severe is CVE-2021-37705?
- Critical severity. CVSS v3 base score is 10.0 out of 10.