Arbitrary file upload in Codesys Web Server
CVE-2017-6027
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Codesys Web Server
- 3s-Smart Software Solutions Gmbh Codesys Web Server — versions 3S-Smart Software Solutions GmbH CODESYS Web Server
Weakness classification (CWE)
References
- www.securityfocus.com/bid/97174 (VDB Entry, Third Party Advisory, vdb-entry)
- ics-cert.us-cert.gov/advisories/ICSA-17-087-02 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6027?
- CVE-2017-6027 is a critical-severity vulnerability in Codesys Web Server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2017-05-19.
- How severe is CVE-2017-6027?
- Critical severity. CVSS v3 base score is 9.8 out of 10.