This updated advisory is a follow-up to the original advisory titled ICSA-22-132-08 Siemens Industrial Products with OPC UA (Update A) that was published May 12, 2022, on the ICS webpage on cisa.gov/ics.
Successful exploitation of this vulnerability could crash the device by sending uncertain status code in a response message.
The following Siemens industrial products are affected:
- SIMATIC NET PC Software v14: All versions prior to 14 SP1 Update 14
- SIMATIC NET PC Software v15: All versions
- SIMATIC NET PC Software v16: All versions prior to 16 Update 6
- SIMATIC NET PC Software v17: All versions prior to 17 SP1
- SITOP Manager: All versions
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
