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Cpu Module Logging Configuration ToolPlugin / extension · Mitsubishielectric

CVE-2020-5602

HIGH · 7.5 CVSS v3.1 Published 2020-06-30
Fix available
A fix is available. Upgrade to after 1.590q or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges 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
Mitsubishi Electoric FA Engineering Software (CPU Module Logging Configuration Tool Ver. 1.94Y and earlier, CW Configurator Ver. 1.010L and earlier, EM Software Development Kit (EM Configurator) Ver. 1.010L and earlier, GT Designer3 (GOT2000) Ver. 1.221F and earlier, GX LogViewer Ver. 1.96A and earlier, GX Works2 Ver. 1.586L and earlier, GX Works3 Ver. 1.058L and earlier, M_CommDTM-HART Ver. 1.00A, M_CommDTM-IO-Link Ver. 1.02C and earlier, MELFA-Works Ver. 4.3 and earlier, MELSEC-L Flexible High-Speed I/O Control Module Configuration Tool Ver.1.004E and earlier, MELSOFT FieldDeviceConfigurator Ver. 1.03D and earlier, MELSOFT iQ AppPortal Ver. 1.11M and earlier, MELSOFT Navigator Ver. 2.58L and earlier, MI Configurator Ver. 1.003D and earlier, Motion Control Setting Ver. 1.005F and earlier, MR Configurator2 Ver. 1.72A and earlier, MT Works2 Ver. 1.156N and earlier, RT ToolBox2 Ver. 3.72A and earlier, and RT ToolBox3 Ver. 1.50C and earlier) allows an attacker to conduct XML External Entity (XXE) attacks via unspecified vectors.

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 confidence

This is an XML External Entity (XXE) vulnerability in multiple Mitsubishi Electric FA Engineering Software products. The software parses XML input without properly disabling external entity processing, allowing attackers to potentially read local files, perform server-side request forgery (SSRF), or cause denial of service by injecting malicious XML entities.

MitigationUpdate all affected software to versions later than those specified in the advisory. If immediate patching is not feasible, implement input validation to reject malicious XML and disable external entity processing in XML parsers.

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
Cpu Module Logging Configuration ToolPlugin / extension
Affected:<= 1.94y
Cw ConfiguratorApplication
Affected:<= 1.010l
Em ConfiguratorApplication
Affected:<= 1.010l
Gt Designer3Application
Affected:<= 1.221f
Gx LogviewerApplication
Affected:<= 1.100e
Gx Works2Application
Affected:<= 1.590q
Gx Works3Application
Affected:<= 1.060n
M Commdtm HartApplication
Affected:<= 1.01b

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
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 checks

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

  1. Identify installed Mitsubishi Electric FA software
    Check Windows Program Files or Programs and Features for any of these: Cpu Module Logging Configuration Tool, CW Configurator, EM Configurator, GT Designer3, GX Logviewer, GX Works2, GX Works3, or M CommDTM HART
    Affected if Any of these eight products are installed on the system
  2. Determine the installed version of each product
    Right-click the application in Programs and Features, or launch the application and look in Help > About or the application's version information dialog
    Affected if The version number is at or below: 1.94y (Cpu Module Logging), 1.010l (CW/EM Configurator), 1.221f (GT Designer3), 1.100e (GX Logviewer), 1.590q (GX Works2), 1.060n (GX Works3), or 1.01b (M CommDTM HART)
  3. Verify XML file parsing is used
    Check if the application uses or imports configuration files, project files, or data files in XML format (common extensions: .gxw, .gxw2, .gxw3, .gtd, .ccl, .xml)
    Affected if The software loads or parses any XML-based project, configuration, or data files, which triggers the vulnerable XML parser

If any of the eight affected Mitsubishi Electric products is installed with a version at or below the specified thresholds and processes XML files, the environment is vulnerable to XXE attacks.

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
Upgrade available Upgrade to a release after 1.590q
Interim mitigation

Update all affected software to versions later than those specified in the advisory. If immediate patching is not feasible, implement input validation to reject malicious XML and disable external entity processing in XML parsers.

Fix this in Cpu Module Logging Configuration Tool Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA4.0 h
40.0 hours of engineering $7,000
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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-2020-5602 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
  • 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