Description
Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WAGO | WAGO 750 Series | 750-880 firmware version 10 and prior, 750-881 firmware version 10 and prior, 750-852 firmware version 10 and prior, 750-882 firmware version 10 and prior, 750-885 firmware version 10 and prior, 750-831 firmware version 10 and prior, 750-889 firmware version 10 and prior, 750-829 firmware version 1… | — |
Advisories 1
- ICSA-18-088-01 WAGO 750 Series CISA ICS & IT advisories · Mar 29, 2018
References
- 103726 vdb-entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-088-01
- https://www.wago.com/medias/Vulnerability-in-the-WAGO-Ethernet-TCP-IP-driver.pdf?context=bWFzdGVyfHJvb3R8MjgxNDk0fGFwcGxpY2F0aW9uL3BkZnxoOTcvaDhkLzkxNTAyMjMyMjA3NjYucGRmfGRlNWQ4ODc0NTE5M2UyNTUwNTIyNDRlOWFkNWI2YjNkMzg0YTVhYzlmYTBjNzM4MDdmNmYzOTM5M2ZlMGEzNzE