CVE-2024-1039
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 · uneditedGessler GmbH WEB-MASTER has a restoration account that uses weak hard coded credentials and if exploited could allow an attacker control over the web management of the device.
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 confidenceGessler GmbH WEB-MASTER devices contain a restoration account with weak hardcoded credentials embedded in the firmware. This account provides authenticated access to the device's web management interface, allowing remote attackers to gain full administrative control without discovering or cracking credentials.
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= 7.9CVSS 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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 the firmware versionAccess the device's web management interface or check the system information page to determine the installed firmware version. Consult the device documentation for the specific location of version information.Affected if The installed firmware version is 7.9 (Gesslergmbh Web Master Firmware)
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Review user accounts in the web interfaceLog into the web management interface and navigate to the user account or administration section. Look for any accounts labeled as 'restoration', 'recovery', 'service', or similar that are not explicitly created by your organization.Affected if A restoration account or any undocumented administrative account exists in the user list
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Verify network exposure of management interfaceDetermine if the WEB-MASTER web management interface is accessible from untrusted networks (such as the public internet) by reviewing firewall rules, port forwards, or performing an external port scan for HTTP/HTTPS services.Affected if The management interface is exposed to untrusted networks without VPN or IP restriction controls
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Check for default or unchanged credentialsAttempt to log in using any documentation-provided default credentials, or check if password policies are being enforced on all accounts in the system.Affected if Default passwords remain unchanged or weak credentials are in use
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Inspect firmware for embedded credentialsIf you have access to the firmware image (through backup, update file, or device extraction), examine the firmware binary or configuration files for hardcoded username and password strings.Affected if Hardcoded credentials or restoration account details are found embedded in the firmware
A user is affected if the device runs Gesslergmbh Web Master Firmware version 7.9 and has the undocumented restoration account accessible on the web management interface.
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 dataImmediately restrict network access to the WEB-MASTER management interface, disable the restoration account if possible, contact Gessler GmbH for firmware updates that remove hardcoded credentials, and change any default passwords on all accounts.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-1039 — 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-2024-1039 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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