Security readout for executives and security teams
Plain-English summary
A low-privilege ManageIQ user could make the platform evaluate crafted Ruby input and run code as root on the host. That makes this a serious internal or authenticated-account risk, especially for shared administration platforms.
Executive priority
Treat this as high priority for any ManageIQ environment with multiple users. The business risk is authenticated compromise of a management platform and root-level control of the host. Patch promptly and tighten RBAC while upgrades are scheduled.
Technical view
CVE-2021-32756 affects ManageIQ versions before jansa-4, kasparov-2, and lasker-1. The MiqExpression module improperly evaluates user-controllable Ruby strings, allowing authenticated low-privilege users to execute arbitrary host code with root privileges. The issue is classified as CWE-74 with CVSS 3.1 score 8.8.
Likely exposure
Exposure is limited to ManageIQ deployments running versions older than jansa-4, kasparov-2, or lasker-1. Risk is higher where many low-privilege users can access product areas using MiqExpression. The source notes MiqExpression is widely used, but does not enumerate every reachable feature path.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not marked KEV. Exploitation requires low-privilege application access, not anonymous access, but successful exploitation can lead to root-level code execution on the ManageIQ host.
Researcher notes
The key technical issue is unsafe evaluation in MiqExpression. The bundle confirms patched release names and RBAC as a surface-reduction measure, but does not provide affected endpoints, exploit availability, or detailed detection logic. Avoid assuming internet-wide exploitation without additional evidence.
Mitigation direction
- Upgrade ManageIQ to jansa-4, kasparov-2, lasker-1, or a later fixed release.
- Restrict users through RBAC to only required application areas.
- Reduce low-privilege user access to features that may invoke MiqExpression.
- Check current ManageIQ vendor guidance before relying on compensating controls alone.
Validation and detection
- Inventory all ManageIQ deployments and identify their release branch and version.
- Confirm each deployment is at jansa-4, kasparov-2, lasker-1, or later.
- Review RBAC assignments for unnecessary low-privilege access across ManageIQ features.
- Inspect ManageIQ host and application logs for unexpected administrative or host-level activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-74: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-32756 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/ManageIQ/manageiq/security/advisories/GHSA-32x4-vj4r-57rqCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.