CVE-2020-25244
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 · uneditedA vulnerability has been identified in LOGO! Soft Comfort (All versions < V8.4). The software insecurely loads libraries which makes it vulnerable to DLL hijacking. Successful exploitation by a local attacker could lead to a takeover of the system where the software is installed.
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 confidenceLOGO! Soft Comfort versions before V8.4 are vulnerable to DLL hijacking due to insecure library loading. A local attacker can place a malicious DLL in a location where the application searches for libraries, achieving code execution with the privileges of the running user and potentially taking over the system.
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 dataall versionsCVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/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 installed LOGO! Soft Comfort versionOpen LOGO! Soft Comfort and navigate to Help > About, or check the executable properties (right-click the executable file, go to Details tab). Look for the version number.Affected if The version is displayed as anything before V8.4, or if the version cannot be determined (unknown).
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Locate the LOGO! Soft Comfort installation directoryFind the installation folder - typically C:\Program Files\Siemens\LogoSoft Comfort or C:\Program Files (x86)\Siemens\LogoSoft Comfort. Right-click the folder, go to Properties, and check the security permissions for the folder.Affected if Users other than administrators have Write or Modify permissions to the installation directory or any subdirectory.
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Examine the application PATH environment variableOpen Windows System Properties > Advanced > Environment Variables. Find the PATH variable for the system or user running the application. Inspect each directory listed for the presence of LOGO! Soft Comfort executables or DLL search paths.Affected if User-writeable directories (such as temp folders, downloads, or user home directories) appear in the PATH where LOGO! Soft Comfort searches for DLLs.
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Check for writable locations in DLL search orderIdentify all directories where LOGO! Soft Comfort searches for DLLs by running the application with process monitoring (such as Sysinternals Process Monitor), filtering for DLL load operations. Check each directory for write access using icacls command.Affected if Any directory in the DLL search path is writable by unprivileged users, allowing placement of malicious DLLs.
The environment is affected if LOGO! Soft Comfort version is before V8.4 and the application directory or DLL search paths contain user-writeable locations where an attacker could place a malicious DLL.
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 dataUpgrade to LOGO! Soft Comfort V8.4 or later. As an interim measure, ensure the application runs from trusted directories and that user-writeable directories are not in the application PATH.
- Consultation6.0 h
- Implementation24.0 h
- Testing12.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-25244 — 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-2020-25244 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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- Version or environment caveats, and links to real fixes
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