CVE-2021-35037
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 · uneditedJamf Pro before 10.30.1 allows for an unvalidated URL redirect vulnerability affecting Jamf Pro customers who host their environments on-premises. An attacker may craft a URL that appears to be for a customer's Jamf Pro instance, but when clicked will forward a user to an arbitrary URL that may be malicious. This is tracked via Jamf with the following ID: PI-009822
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 confidenceJamf Pro before 10.30.1 contains an unvalidated URL redirect vulnerability in on-premises deployments. Attackers can craft malicious URLs appearing to originate from the legitimate Jamf Pro domain that redirect users to arbitrary external websites, potentially leading to phishing or malware delivery.
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< 10.30.1CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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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Identify Jamf Pro installationLocate the Jamf Pro admin console by accessing the JAMF Software Server (JSS) web interface, typically on port 8443 or 443, or check for Jamf Pro services running on the serverAffected if Jamf Pro is accessible via web browser or running as a service on the host
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Determine installed versionLog into the Jamf Pro admin console and navigate to the About Jamf Pro page, or check the version displayed at the bottom of any admin console pageAffected if The version shown is below 10.30.1 (for example, 10.30.0, 10.29.x, or earlier)
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Confirm deployment typeIdentify whether this is an on-premises (self-hosted) Jamf Pro deployment rather than Jamf's cloud-hosted serviceAffected if The Jamf Pro server is hosted and managed within your own infrastructure
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Check URL redirect functionalityIf available, examine the Jamf Pro login page or any internal links for unvalidated redirect parameters (such as 'redirect=' or 'url=' in URLs) that could be modified to point to external domainsAffected if The application accepts and follows redirect parameters without validation
If Jamf Pro is deployed on-premises and the installed version is below 10.30.1, the environment is vulnerable to unvalidated URL redirects that could be exploited for 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 data10.30.1
Apply vendor patch by upgrading Jamf Pro to version 10.30.1 or later. On-premises customers should test the update in a non-production environment before production deployment.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2021-35037 — 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-2021-35037 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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