CVE-2017-6027: Malicious File Upload
First published: Fri May 19 2017(Updated: )
An Arbitrary File Upload issue was discovered in 3S-Smart Software Solutions GmbH CODESYS Web Server. The following versions of CODESYS Web Server, part of the CODESYS WebVisu web browser visualization software, are affected: CODESYS Web Server Versions 2.3 and prior. A specially crafted web server request may allow the upload of arbitrary files (with a dangerous type) to the CODESYS Web Server without authorization which may allow remote code execution.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CODESYS Web Server | <=2.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-6027?
CVE-2017-6027 is considered a critical vulnerability due to the potential for arbitrary file uploads.
How do I fix CVE-2017-6027?
To fix CVE-2017-6027, upgrade to a version of CODESYS Web Server later than 2.3.
What are the affected versions of CODESYS Web Server in CVE-2017-6027?
The affected versions of CODESYS Web Server in CVE-2017-6027 are 2.3 and prior.
What types of attacks are possible with CVE-2017-6027?
CVE-2017-6027 allows attackers to upload arbitrary files, which could lead to further exploitation of the web server.
Is there a workaround for CVE-2017-6027?
There are no official workarounds for CVE-2017-6027; the only solution is to upgrade to a secure version.
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