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Beckhoff TwinCAT 'TCATSysSrv.exe' Network Packet Denial of Service Vulnerability

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

11 years ago

Modified

Modified

4 years ago

Summary

This host is installed with Beckhoff TwinCAT and is prone to denial of service vulnerability.

Insight

Insight

The flaw is caused by an error in the 'TCATSysSrv.exe' when performing an invalid read access, which can be exploited by remote attacker by sending malformed packet to port 48899/UDP.

Affected Software

Affected Software

Beckhoff TwinCAT Version 2.11 build 1553, Other versions may also be affected.

Solution

Solution

Vendor has released a patch to fix the issue, please contact the vendor at 'patch@beckhoff.com' for patch information.

Common Vulnerabilities and Exposures (CVE)