CVE-2023-30433
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 · uneditedIBM Security Verify Access 10.0 could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim. IBM X-Force ID: 252186.
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 · high confidenceIBM Security Verify Access 10.0 contains an open redirect vulnerability where the application does not properly validate redirect URLs. An attacker can craft a malicious URL that appears to be a trusted IBM Verify Access URL but actually redirects victims to an arbitrary external website, enabling phishing attacks to harvest credentials or deliver further malicious content.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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= 10.0.0CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm IBM Security Verify Access installationLocate the IBM Security Verify Access installation directory or check system services for the Verify Access component. Common locations include /opt/ibm/verifyaccess or C:\Program Files\IBM\Verify Access on Windows.Affected if IBM Security Verify Access version 10.0.0 is installed on the system
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Verify the installed versionCheck the installed version of IBM Security Verify Access using the product's management console, command-line interface, or version file in the installation directory.Affected if The installed version is exactly 10.0.0 (no patches applied)
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Identify redirect-capable endpointsExamine the web application's login, logout, and authentication-related pages for parameters that control redirection after actions (commonly named redirect, url, dest, next, target, or similar). Review the application's URL structure and HTTP parameters.Affected if The application accepts a redirect parameter in any authentication-related endpoint
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Test redirect URL validationCraft a test request to a redirect-enabled endpoint with an external domain in the redirect parameter (for example: https://your-verify-access-host/login?redirect=https://example.com). Observe whether the application accepts the external URL without rejecting or sanitizing it.Affected if The application accepts arbitrary external URLs in redirect parameters without validation or warning
A user is affected if IBM Security Verify Access version 10.0.0 is running and the application permits unvalidated external URLs in redirect parameters, allowing potential phishing attacks.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataImplement strict validation of all redirect parameters, using allowlist-based URL validation to ensure redirects only point to trusted internal domains. Consider displaying prominent warnings when redirecting to external sites.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-30433 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-30433 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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