CVE-2002-2430
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 · uneditedGoAhead WebServer before 2.1.1 allows remote attackers to cause a denial of service (CPU consumption) by performing a socket disconnect to terminate a request before it has been fully processed by the server.
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 confidenceGoAhead WebServer before version 2.1.1 contains a denial-of-service vulnerability where remote attackers can cause excessive CPU consumption by disconnecting a socket mid-request, before the server has finished processing it. The server appears to enter a CPU-intensive loop or fails to properly handle the incomplete request state.
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<= 2.1= 2.0CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 if GoAhead WebServer is installedCheck for the presence of GoAhead WebServer process or executable. On Linux/Unix: ps aux | grep -i goahead or which goahead. On Windows: check running services or installed programs for 'GoAhead' or 'Goahead WebServer'.Affected if GoAhead WebServer is found running on the system
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Determine the installed GoAhead WebServer versionRun the web server binary with a version flag if available (common flags: -v, -V, --version), or check the server's HTTP response headers by making a request to the server (curl -I http://yourserver:port). The server may expose its version in the Server header or error pages.Affected if The version returned is 2.0 or any version <= 2.1 (such as 2.1, 2.0.8, 2.0.5, etc.)
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Confirm remote access is enabledVerify the web server is configured to accept remote connections by checking its configuration files (commonly goahead.conf or similar) for Listen or Bind directives that include non-localhost addresses, or verify the server is listening on a non-loopback IP address using netstat -an | grep <port> or ss -tlnp | grep <port>.Affected if The server is accessible from remote clients (binds to 0.0.0.0 or a non-loopback IP)
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Verify the server processes incomplete requestsThis is a behavioral condition: if an attacker disconnects mid-request, the server enters a CPU-intensive loop. There is no simple config check; the vulnerability manifests at runtime when the specific attack condition occurs.Affected if The server is running an affected version (2.0 to 2.1 inclusive) and is exposed to remote attackers who can send incomplete HTTP requests
A user is affected if GoAhead WebServer version 2.0 or any version <= 2.1 is installed and the server is accessible to remote clients, as the vulnerability triggers when a remote client disconnects mid-request.
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 dataUpgrade GoAhead WebServer to version 2.1.1 or later, which contains the fix for this vulnerability. If upgrading is not immediately feasible, consider rate limiting or restricting remote access to the web server as a compensating control.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2002-2430 — 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-2002-2430 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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