ApicastApplication · Redhat

CVE-2023-0456

HIGH · 7.5 CVSS v3.1 Published 2023-09-27
Fix available
A fix is available. Upgrade to 2.12.2 / 2.13.2 or later.
See remediation →
84/100
Remediation priority · High
Public exploit Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A flaw was found in APICast, when 3Scale's OIDC module does not properly evaluate the response to a mismatched token from a separate realm. This could allow a separate realm to be accessible to an attacker, permitting access to unauthorized information.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-285

The application confirms who you are but does not properly check whether you are permitted to perform a given action, so authenticated users reach functions or data meant for others. Attackers test roles and object references to find the gap. Remediation is an authorization check on every request, evaluated against the acting user's actual permissions.

General guidance for the improper authorization class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ApicastApplication
Affected:< 2.12.2>= 2.13.0, < 2.13.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 2.12.2 / 2.13.2 or later
Fixed in 2.12.22.13.2
Recommended fix High confidence

Upgrade to APICast version 2.12.2 or 2.13.2 (or latest available stable release)

  1. 1. Identify your current APICast/3scale version by checking your deployment configuration or running 'apicast --version'
  2. 2. If running version < 2.12.2, plan upgrade to version 2.12.2 or later
  3. 3. If running version >= 2.13.0 and < 2.13.2, plan upgrade to version 2.13.2 or later
  4. 4. Backup your current configuration and any custom policies before upgrading
  5. 5. Consult Red Hat 3scale API Management upgrade documentation for your deployment method (operator-based or YAML-based)
  6. 6. Apply the upgrade following Red Hat's standard upgrade procedure for your environment
  7. 7. After upgrade, verify OIDC authentication is functioning correctly by testing token validation across different realms
  8. 8. Confirm the fix by verifying the version matches a fixed release (2.12.2+ or 2.13.2+)
Caveat Review Red Hat 3scale release notes for version-specific breaking changes between your current and target version

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,950. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-0456 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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