CVE-2022-30791

CODESYS V3: CmpBlkDrvTcp allows unauthenticated attackers to block all its available TCP connections

Description

In CmpBlkDrvTcp of CODESYS V3 in multiple versions an uncontrolled ressource consumption allows an unauthorized attacker to block new TCP connections. Existing connections are not affected.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.18%
Vendor Advisory codesys.com
Affected: CODESYS CODESYS Control RTE (SL)
Affected: CODESYS CODESYS Control RTE (for Beckhoff CX) SL
Affected: CODESYS CODESYS Control Win (SL)
Affected: CODESYS CODESYS Gateway
Affected: CODESYS CODESYS Edge Gateway for Windows
Affected: CODESYS CODESYS HMI (SL)
Affected: CODESYS CODESYS Development System V3
Affected: CODESYS CODESYS Control Runtime System Toolkit
Affected: CODESYS CODESYS Embedded Target Visu Toolkit
Affected: CODESYS CODESYS Remote Target Visu Toolkit
Affected: CODESYS CODESYS Control for BeagleBone SL
Affected: CODESYS CODESYS Control for Beckhoff CX9020 SL
Affected: CODESYS CODESYS Control for emPC-A/iMX6 SL
Affected: CODESYS CODESYS Control for IOT2000 SL
Affected: CODESYS CODESYS Control for Linux SL
Affected: CODESYS CODESYS Control for PFC100 SL
Affected: CODESYS CODESYS Control for PFC200 SL
Affected: CODESYS CODESYS Control for PLCnext SL
Affected: CODESYS CODESYS Control for Raspberry Pi SL
Affected: CODESYS CODESYS Control for WAGO Touch Panels 600 SL
Affected: CODESYS CODESYS Edge Gateway for Linux
Published at:
Updated at:

References

Link Tags
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17128&token=bee4d8a57f19be289d623ec90135493b5f9179e3&download= vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-30791?
CVE-2022-30791 has been scored as a high severity vulnerability.
How to fix CVE-2022-30791?
To fix CVE-2022-30791, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-30791 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-30791 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-30791?
CVE-2022-30791 affects CODESYS CODESYS Control RTE (SL), CODESYS CODESYS Control RTE (for Beckhoff CX) SL, CODESYS CODESYS Control Win (SL), CODESYS CODESYS Gateway, CODESYS CODESYS Edge Gateway for Windows, CODESYS CODESYS HMI (SL), CODESYS CODESYS Development System V3, CODESYS CODESYS Control Runtime System Toolkit, CODESYS CODESYS Embedded Target Visu Toolkit, CODESYS CODESYS Remote Target Visu Toolkit, CODESYS CODESYS Control for BeagleBone SL, CODESYS CODESYS Control for Beckhoff CX9020 SL, CODESYS CODESYS Control for emPC-A/iMX6 SL, CODESYS CODESYS Control for IOT2000 SL, CODESYS CODESYS Control for Linux SL, CODESYS CODESYS Control for PFC100 SL, CODESYS CODESYS Control for PFC200 SL, CODESYS CODESYS Control for PLCnext SL, CODESYS CODESYS Control for Raspberry Pi SL, CODESYS CODESYS Control for WAGO Touch Panels 600 SL, CODESYS CODESYS Edge Gateway for Linux.
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