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.
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.
| Link | Tags |
|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/69765 | vdb entry |
| http://securityreason.com/securityalert/8380 | third party advisory |
| http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-256-06.pdf | us government resource |
| http://osvdb.org/75495 | vdb entry |
| http://aluigi.altervista.org/adv/twincat_1-adv.txt | exploit |