CVE-2023-48247
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 · uneditedThe vulnerability allows an unauthenticated remote attacker to read arbitrary files under the context of the application OS user (“root”) via a crafted HTTP request.
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 path traversal (local file inclusion) vulnerability allowing an unauthenticated remote attacker to read arbitrary files on the system as the root user via a crafted HTTP request. The attacker can exploit this to access sensitive configuration files, credentials, or other system files.
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>= 1000, <= 1500-sp2CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 Bosch Nexo OS versionAccess the system administration interface or run the command to display the OS version (typically via CLI or web UI). Look for a version string in the format like '1000', '1500', or '1500-sp2'.Affected if The installed version falls within the range >= 1000 and <= 1500-sp2 (including service pack versions). Compare your version number to this range.
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Verify web interface exposureDetermine if the Bosch Nexo OS web management interface is accessible from network locations. Check firewall rules, network ACLs, or reverse proxy configurations that expose the application ports (typically HTTP/HTTPS ports).Affected if The web interface is accessible over the network without proper network segmentation or authentication barriers.
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Review HTTP request handlingExamine web server or application logs for requests containing directory traversal patterns (such as '../', '..\', or absolute path sequences like '/etc/'). Check if the application processes file path parameters without validation.Affected if The application accepts and processes file path parameters in HTTP requests without sanitization, allowing sequences like '../' to traverse directories.
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Check for root-level file accessVerify the running process privileges. Determine if the web application or application server runs with root user privileges by reviewing process lists or service configurations.Affected if The application executes with root-level permissions, allowing a successful path traversal to access any file on the system.
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Audit for exploitation indicatorsReview system and web server logs for suspicious file access patterns, particularly from external IP addresses accessing sensitive files like /etc/passwd, configuration directories, or credential stores.Affected if Log analysis reveals anomalous HTTP requests with path traversal patterns or unauthorized access to sensitive system files from untrusted sources.
A system is affected if it runs Bosch Nexo OS version 1000 through 1500-sp2, has an exposed web interface, and the application processes file path parameters without validation while running as root.
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 input validation and sanitization for file path parameters, use allowlist-based file access controls, and ensure the application runs with least-privilege principles rather than as root.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 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 $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-48247 — 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-2023-48247 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
- No spam, self-promotion, credentials, or personal data