CVE-2023-23448
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 · uneditedInclusion of Sensitive Information in Source Code in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to gain information about valid usernames via analysis of source code.
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 confidenceThe SICK FTMg AIR FLOW Sensor devices with specified partnumbers expose valid usernames in their source code. An attacker can analyze the source code to enumerate legitimate usernames, which could facilitate credential-based attacks or further authentication bypass 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< 2.0< 2.0< 2.0< 2.0< 2.0< 2.0< 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
- 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 device modelLocate the part number label on the SICK FTMg device or check device documentation/inventory. Confirm it matches one of: Ftmg Esd20axx, Ftmg Esd25axx, Ftmg Esn40sxx, Ftmg Esn50sxx, Ftmg Esr50sxx, Ftmg Esr40sxx, Ftmg Esd15axxAffected if Device model is NOT one of the listed affected models - user is not affected
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Check firmware versionAccess the device web interface or use SICK FTMg configuration software to view the installed firmware version. This is typically found in the device settings or system information sectionAffected if Unable to determine firmware version - verification incomplete
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Compare firmware to affected rangeCompare your installed firmware version against the affected range: any version < 2.0Affected if Firmware version is 2.0 or higher - user is not affected; Firmware version is less than 2.0 and model matches affected list - user IS affected
User is affected if they have any of the listed FTMg device models with firmware version less than 2.0, as the device likely contains hardcoded usernames in its source code that could be enumerated by an attacker
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 · scoped2.0
Remove hardcoded sensitive information from source code and update to a patched firmware version if available. In the interim, implement network segmentation and monitor for unauthorized access attempts using the exposed usernames.
Firmware version 2.0 or later for FTMg AIR FLOW SENSOR devices
- Identify the specific FTMg AIR FLOW SENSOR model (part number) from the affected list: 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, or 1122526
- Locate the device management interface or SICK support portal for firmware updates
- Check the current firmware version of the affected device
- Download and install firmware version 2.0 or later from SICK's official support website
- Verify the firmware upgrade was successful and the vulnerability is resolved
- Ensure the device is reconfigured securely post-upgrade, reviewing any default credentials
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 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 $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-23448 — 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-2023-23448 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