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CVE-2021-36763

In CODESYS V3 web server before 3.5.17.10, files or directories are accessible to External Parties.

Published: Aug 3, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-552
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.0%
Top 41.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Starting with Festo Automation Suite (FAS) version 2.8.0.138, the suite is delivered only with a connector to Codesys, rather than including Codesys directly. Prior to this version, Codesys was bundled within the FAS installation. From version 2.8.0.138 onwards, customers are required to download and install Codesys independently. This change impacts the handling of security vulnerabilities (CVEs) related to Codesys. Any Codesys-related security issues must now be addressed by the customer through their separate Codesys installation. The FAS itself includes only the connector component, which is maintained and updated within the suite. Please ensure that Codesys is kept up to date independently to mitigate any potential security risks associated with the Codesys software.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-552

Affected Products

n/an/a
controlcodesysICS / OT / IoT
control rtecodesysICS / OT / IoT
control runtime system toolkitcodesysICS / OT / IoT
control win slcodesysICS / OT / IoT
codesysoss-projectDEICS / OT / IoTaka codesys gmbh
and 3 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://festo.csaf-tp.certvde.com/.well-known/csaf/white/2026/fsa-202601.json
festo.csaf-tp.certvde.com
https://certvde.com/en/advisories/vendor/festo/
certvde.com
https://www.festo.com/psirt
festo.com
and 226 more references View all →

Timeline

Published
Aug 3, 2021
Last Updated
Nov 21, 2024

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