CVE-2021-42791
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 · uneditedAn issue was discovered in VeridiumID VeridiumAD 2.5.3.0. The HTTP request to trigger push notifications for VeridiumAD enrolled users does not enforce proper access control. A user can trigger push notifications for any other user. The text contained in the push notification can also be modified. If a user who receives the notification accepts it, then the user who triggered the notification can obtain the accepting user's login certificate.
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 · moderate confidenceThe push notification endpoint in VeridiumAD lacks proper access control enforcement, allowing any authenticated user to trigger notifications for other users. This IDOR vulnerability enables notification text manipulation and, critically, allows an attacker to obtain a victim's login certificate if the victim accepts the malicious notification.
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= 2.5.3.0CVSS 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
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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 VeridiumAD installationLocate and verify the Veridiumid Veridiumad installation on the system, typically found in the application directory or program files. Check for the presence of VeridiumAD components and services.Affected if VeridiumAD version 2.5.3.0 is installed and running
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Identify installed versionUse the system's software inventory, application metadata, or VeridiumAD admin interface to determine the exact installed version of VeridiumAD. Cross-reference with version 2.5.3.0 specifically.Affected if The installed version is exactly 2.5.3.0
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Verify push notification feature is enabledCheck the VeridiumAD configuration settings, admin console, or configuration files for push notification module status. Look for settings related to push notifications, notification services, or mobile notification channels.Affected if Push notification functionality is enabled or configured in the environment
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Check push notification endpoint access controlsExamine the push notification endpoint configuration and authorization settings. Review whether the endpoint enforces user-specific access restrictions or allows cross-user notification triggering. Inspect authentication and authorization logs for notification requests targeting other users.Affected if The push notification endpoint permits authenticated users to trigger notifications for other users without proper authorization checks
A user is affected if they are running VeridiumAD version 2.5.3.0 with the push notification feature enabled, and the notification endpoint allows cross-user notification requests without proper authorization validation.
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 authorization checks ensuring users can only trigger push notifications for their own accounts, validate all notification content, and implement mutual authentication or secure challenge-response for certificate exchange to prevent certificate theft.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-42791 — 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-2021-42791 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
- No spam, self-promotion, credentials, or personal data