Vulnerability Details : CVE-2011-3486
Public exploit exists!
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.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2011-3486
- cpe:2.3:a:beckhoff:twincat:*:*:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:2.10:*:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:2.9:*:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:2.8:*:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:2.7:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-3486
71.50%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 98 %
Percentile, the proportion of vulnerabilities that are scored at or less
Metasploit modules for CVE-2011-3486
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Beckhoff TwinCAT SCADA PLC 2.11.0.2004 DoS
Disclosure Date: 2011-09-13First seen: 2020-04-26auxiliary/dos/scada/beckhoff_twincatThe Beckhoff TwinCAT version <= 2.11.0.2004 can be brought down by sending a crafted UDP packet to port 48899 (TCATSysSrv.exe). Authors: - Luigi Auriemma - jfa
CVSS scores for CVE-2011-3486
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2011-3486
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The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-3486
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https://exchange.xforce.ibmcloud.com/vulnerabilities/69765
TwinCAT datagram denial of service CVE-2011-3486 Vulnerability Report
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http://securityreason.com/securityalert/8380
Beckhoff TwinCAT Denial of Service - CXSecurity.com
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http://aluigi.altervista.org/adv/twincat_1-adv.txt
Exploit
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http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf
404 - File Not Found | CISAUS Government Resource
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