CVE-2024-6424
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 · uneditedExternal server-side request vulnerability in MESbook 20221021.03 version, which could allow a remote, unauthenticated attacker to exploit the endpoint "/api/Proxy/Post?userName=&password=&uri=<FILE|INTERNAL URL|IP/HOST" or "/api/Proxy/Get?userName=&password=&uri=<ARCHIVO|URL INTERNA|IP/HOST" to read the source code of web files, read internal files or access network resources.
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 confidenceThis is a Server-Side Request Forgery (SSRF) vulnerability in MESbook's API proxy endpoints (/api/Proxy/Post and /api/Proxy/Get). The unprotected 'uri' parameter allows remote unauthenticated attackers to force the server to fetch arbitrary files, access internal network resources, or retrieve web application source code.
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= 20221021.03CVSS 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
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 MESbook installation and versionLocate the MESbook application installation and check the installed version number. Common locations may include the application directory, version manifest, or About/Info page within the application.Affected if The installed version is exactly 20221021.03
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Verify proxy endpoints are accessibleAttempt to access the /api/Proxy/Post and /api/Proxy/Get endpoints via HTTP request to confirm they are exposed and responding.Affected if These proxy endpoints are reachable without authentication and respond to requests
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Confirm uri parameter is accepted without validationSend a test request to either proxy endpoint with the 'uri' parameter pointing to an internal resource or local file path. Inspect whether the application processes or attempts to fetch the provided URI.Affected if The 'uri' parameter is accepted and processed without any apparent input validation or allowlist enforcement
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Check for existing network restrictionsReview any web server configuration, firewall rules, or application-level network restrictions that may limit where the proxy can fetch resources from.Affected if No network-level or application-level restrictions exist on the proxy endpoints
You are affected if you are running MESbook version 20221021.03 with the /api/Proxy/Post or /api/Proxy/Get endpoints exposed and the 'uri' parameter accepts arbitrary URLs without validation.
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 dataImplement strict allowlist-based input validation on the uri parameter to block access to internal IPs, localhost, and local file paths. Consider disabling these proxy endpoints if not essential to business functionality.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-6424 — 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-2024-6424 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
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