CVE-2023-48243
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 a remote attacker to upload arbitrary files in all paths of the system under the context of the application OS user (“root”) via a crafted HTTP request. By abusing this vulnerability, it is possible to obtain remote code execution (RCE) with root privileges on 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 confidenceA path traversal vulnerability in the file upload functionality allows unauthenticated remote attackers to write arbitrary files to any location on the filesystem. Since the application runs as root, this enables full system compromise through uploading malicious scripts (e.g., web shells) to web-accessible directories, leading to remote code execution with root privileges.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 installed product and versionCheck the system or application documentation, web interface, or running services to confirm the product is Bosch Nexo Os and obtain its version number.Affected if The product is Bosch Nexo Os and the version falls within range >= 1000 to <= 1500-sp2
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Verify if file upload functionality is accessibleInspect the web application's exposed endpoints or API routes to determine if an unauthenticated file upload feature exists and is reachable.Affected if An unauthenticated file upload endpoint is exposed and accessible without authentication
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Check the application process privilegesExamine the running process privileges of the web application or file upload handler, typically via process inspection commands or service configuration.Affected if The application or web server process runs with root or elevated privileges
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Inspect web-accessible directories for unexpected filesReview directories accessible via HTTP/HTTPS (such as web root, upload folders, or static asset paths) for any suspicious or unexpected files that may indicate prior exploitation.Affected if Unexpected scripts, web shells, or unfamiliar executable files are present in web-accessible directories
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Review upload directory configurationCheck the configuration of upload directories to determine if path traversal validation is applied and if uploads are stored in a non-executable location.Affected if The application lacks input validation on file paths or stores uploads in directories that permit script execution
A user is affected if their Bosch Nexo Os installation is version 1000 through 1500-sp2, exposes an unauthenticated file upload endpoint, and runs with root privileges.
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 for filenames and paths, restrict upload locations to a non-executable directory, enforce authentication and authorization for upload endpoints, and remove or sandbox the web server process from running as root.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,968.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-48243 — 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-2023-48243 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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