Critical severity · published May 19, 2017
CVE-2017-6027
An Arbitrary File Upload issue was discovered in 3S-Smart Software Solutions GmbH CODESYS Web Server
9.8
CVSS
2.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WS
Web Server · Codesys
through 2.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-6027
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-6027
Third Party Advisory
http://www.securityfocus.com/bid/97174
Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-087-02
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