SCADA: Beckhoff Twincat Out-of-bounds Denial Of Service
This signature detects attempts to exploit a known vulnerability in the Beckhoff Twincat. A successful attack can result in a denial-of-service condition.
Extended Description
Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.
Affected Products
Beckhoff twincat
References
CVE: CVE-2011-3486
Short Name
SCADA:BECKHOFF-TWINCAT-DOS
Severity
Major
Recommended
False
Recommended Action
Drop
Category
SCADA
Keywords
Beckhoff CVE-2011-3486 Denial Of Out-of-bounds Service Twincat
Release Date
10/04/2016
Supported Platforms
mx-19.3
vmx-19.3
vsrx-19.2
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vmx-19.4
mx-19.4
srxevo-25.4
vsrx-26.2
srx-26.2
srx-branch-26.2
vsrx3bsd-26.2
mx-12.3
srx-12.3
srx-branch-12.3
vsrx-12.3
Sigpack Version
3336
Port
UDP/48899
False Positive
Unknown
Vendors
Beckhoff
CVSS Score
5.0