CVE-2022-36085 (GCVE-0-2022-36085)

Vulnerability from cvelistv5 – Published: 2022-09-08 13:30 – Updated: 2025-04-22 17:23
VLAI?
Title
OPA Compiler: Bypass of WithUnsafeBuiltins using `with` keyword to mock functions
Summary
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.
Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-693 - Protection Mechanism Failure
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
open-policy-agent opa Affected: >= 0.40.0, < 0.43.1
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