CVE-2019-18336

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.

• siemens simatic s7-300 cpu firmware (< 3.3.17) • siemens simatic s7-300 cpu 312 ifm firmware (< 3.3.17) • siemens simatic s7-300 cpu 313 firmware (< 3.3.17) • siemens simatic s7-300 cpu 314 firmware (< 3.3.17) • siemens simatic s7-300 cpu 314 ifm firmware (< 3.3.17) • siemens simatic s7-300 cpu 315 firmware (< 3.3.17) • siemens simatic s7-300 cpu 315-2 dp firmware (< 3.3.17) • siemens simatic s7-300 cpu 316-2 dp firmware (< 3.3.17) • siemens simatic s7-300 cpu 318-2 firmware (< 3.3.17) • siemens sinumerik 840d sl (< 4.8.6) • siemens sinumerik 840d sl (< 4.94) • siemens simatic tdc cp51m1 firmware (< 1.1.8) • siemens simatic tdc cpu555 firmware (< 1.1.1)