Unrestricted File UploadWeakness · CWE-434

CVE-2024-1532

MEDIUM · 6.8 CVSS v3.1 Published 2024-03-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
Remotely reachable Zero-click

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 · unedited
A vulnerability exists in the stb-language file handling that affects the RTU500 series product versions listed below. A malicious actor could enforce diagnostic texts being displayed as empty strings, if an authorized user uploads a specially crafted stb-language file.

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 confidence

A vulnerability in the stb-language file parser of RTU500 series products allows an authenticated attacker to upload a specially crafted file that causes diagnostic text fields to render as empty strings. The issue stems from improper handling of the file format during parsing, leading to display manipulation rather than code execution.

MitigationImplement strict validation and sanitization of stb-language file content during upload, ensuring malformed or specially crafted files cannot override diagnostic text strings. Consider adding file format verification and rejecting files with unexpected structure.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS 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
High
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify RTU500 series product deployment
    Locate RTU500 series hardware or software documentation, network inventory, or system configuration files that confirm RTU500 product line is in use
    Affected if RTU500 series product is confirmed in the environment
  2. Check firmware/software version
    Access the device management interface, firmware version display, or system information to retrieve the installed RTU500 version number
    Affected if Version cannot be determined or falls within an affected range (if known)
  3. Verify stb-language file parser is enabled
    Examine RTU500 configuration settings, feature flags, or module list to determine if the stb-language parser component is loaded and active
    Affected if stb-language parser is enabled and processing uploaded files
  4. Confirm authenticated file upload capability
    Check user role permissions, file upload endpoints, or upload functionality accessible to authenticated users in the RTU500 management interface
    Affected if Authenticated users can upload files to the system
  5. Identify diagnostic text display component
    Review RTU500 diagnostic interfaces, log viewers, or status displays that render diagnostic text fields from stb-language files
    Affected if Diagnostic text fields derived from stb-language files are visible in the interface

User is affected if running an RTU500 series product with the stb-language file parser enabled and authenticated users have the ability to upload files that get parsed for diagnostic text display.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict validation and sanitization of stb-language file content during upload, ensuring malformed or specially crafted files cannot override diagnostic text strings. Consider adding file format verification and rejecting files with unexpected structure.

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing10.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,580
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-1532 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
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  • Version or environment caveats, and links to real fixes
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