CVE-2022-36085— Open Policy Agent 安全漏洞

OPA Compiler: Bypass of WithUnsafeBuiltins using `with` keyword to mock functions

Open Policy Agent (OPA) is an open source, general-purpose policy engine. The Rego compiler provides a (deprecated) `WithUnsafeBuiltins` function, which allows users to provide a set of built-in functions that should be deemed unsafe — and as such rejected — by the compiler if encountered in the policy compilation stage. A bypass of this protection has been found, where the use of the `with` keyword to mock such a built-in function (a feature introduced in OPA v0.40.0), isn’t taken into account by `WithUnsafeBuiltins`. Multiple conditions need to be met in order to create an adverse effect. Version 0.43.1 contains a patch for this issue. As a workaround, avoid using the `WithUnsafeBuiltins` function and use the `capabilities` feature instead.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

保护机制失效

Open Policy Agent 安全漏洞

Open Policy Agent是一个开源的通用策略引擎，可在整个堆栈中实现统一的、上下文感知的策略实施。 Open Policy Agent (OPA) 存在安全漏洞，该漏洞源于使用 with 关键字绕过 WithUnsafeBuiltins 来模拟函数。

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