CVE-2020-29031
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 Insecure Direct Object Reference vulnerability exists in the web UI of the GateManager which allows an authenticated attacker to reset the password of any user in its domain or any sub-domain, via escalation of privileges. This issue affects all GateManager versions prior to 9.2c
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 confidenceAn Insecure Direct Object Reference (IDOR) vulnerability in the GateManager web UI allows any authenticated attacker to reset passwords of other users within the same domain or sub-domains by directly manipulating user object references without proper authorization validation, enabling privilege escalation.
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< 9.2c< 9.0i< 9.0i< 9.0iCVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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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Identify GateManager firmware versionAccess the GateManager web UI and navigate to System > Status or check the startup banner for the firmware version number. Alternatively, use SSH to connect to the device and run the command 'version' or check /etc/version if accessible.Affected if The displayed firmware version is lower than 9.2c for 8250 models, or lower than 9.0i for 4250, 4260, or 9250 models.
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Confirm web UI is enabledVerify that the GateManager web interface is accessible by attempting to reach the login page via HTTP/HTTPS on the device IP or hostname.Affected if The web UI is active and reachable, which is required for the IDOR password reset to be exploitable.
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Check user account configurationLog into the GateManager web UI and navigate to User Management or Administration > Users. Review the list of user accounts and their assigned roles or domains.Affected if Multiple user accounts exist within the same domain or sub-domain, creating the condition where IDOR manipulation of user object references could allow unauthorized password resets.
A user is affected if the GateManager firmware version is below 9.2c (8250) or below 9.0i (4250/4260/9250), the web UI is accessible, and multiple users exist within the same domain.
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 data9.0i9.2c
Upgrade GateManager to version 9.2c or later to obtain the vendor patch that addresses the IDOR vulnerability and implements proper authorization checks for password reset operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-29031 — 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-2020-29031 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
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