CVE-2024-8651
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 · uneditedA vulnerability in NetCat CMS allows an attacker to send a specially crafted http request that can be used to check whether a user exists in the system, which could be a basis for further attacks. This issue affects NetCat CMS v. 6.4.0.24126.2 and possibly others. Apply patch from vendor https://netcat.ru/ https://netcat.ru/] . Versions 6.4.0.24248 and on have the patch.
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 confidenceNetCat CMS contains a user enumeration vulnerability where specially crafted HTTP requests allow unauthenticated attackers to determine whether specific usernames exist in the system. This information disclosure could serve as reconnaissance for subsequent attacks such as credential stuffing or brute force attempts.
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< 6.4.0.24248CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 NetCat CMS installationCheck for NetCat CMS by examining HTTP responses for NetCat-specific headers, cookies (e.g., 'netcat', 'NC', or session cookies), or by looking for NetCat-specific paths in the URL such as '/netcat/', '/cms/', or the login page source for 'NetCat' brandingAffected if NetCat CMS is present in the environment
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Determine installed NetCat CMS versionLocate the version identifier in the installation - common locations include: version files in the root or admin directory (version.php, version.txt, or similar), the admin dashboard 'About' or 'System Info' page, or meta tags in the HTML sourceAffected if The installed version is lower than 6.4.0.24248
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Verify unaudited HTTP endpoints existProbe the application for user-related endpoints such as /user/login, /register, /profile, /admin, or password reset functionality - these are common paths where user enumeration may occurAffected if These endpoints are accessible without authentication and respond to requests
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Test for user enumeration behaviorSend HTTP requests to the target endpoint with two different usernames (one likely to exist like 'admin' and one random like 'nonexistentuser12345') and compare the HTTP status codes and response content - look for differences in error messages, response times, or behavior that reveals whether the username existsAffected if The responses differ between existing and non-existing usernames, revealing valid user accounts
If NetCat CMS version is below 6.4.0.24248 and the application responds differently for valid vs invalid usernames via unauthenticated HTTP requests, the environment is affected by CVE-2024-8651.
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.
dbcve · scoped6.4.0.24248
Update NetCat CMS to version 6.4.0.24248 or later to apply the vendor patch that addresses this user enumeration vulnerability.
6.4.0.24248
- 1. Back up the current NetCat CMS installation and database before upgrading
- 2. Download NetCat CMS version 6.4.0.24248 or later from the official vendor website at https://netcat.ru/
- 3. Follow the vendor's official upgrade instructions for your specific deployment method
- 4. Verify the upgrade was successful by checking the version number in the admin panel
- 5. Test critical functionality to ensure the upgrade did not break existing features
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 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-2024-8651 — 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-2024-8651 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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