CVE-2021-37705

描述

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.

如何修補 CVE-2021-37705

要修補 CVE-2021-37705,請將受影響套件升級到下列已修補版本。

• —升級至 2.31.0 或更新版本
• —升級至 2fcb4998887959b4fa11894a068d689189742cb1 或更新版本

CVE-2021-37705 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• >= 2.12.0, < 2.31.0
• from 0, < 2fcb4998887959b4fa11894a068d689189742cb1 | >= 2.12.0, < 2.31.0

CVSS 分數

參考連結(9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-37705
• PATCHpypi.org/project/onefuzz/
• WEBgithub.com/microsoft/onefuzz
• WEBgithub.com/microsoft/onefuzz/commit/2fcb4998887959b4fa11894a068d689189742cb1
• WEB