CVE-2019-18336
Description
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.
How to fix
- siemens simatic_s7-300_cpu_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_312_ifm_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_313_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_314_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_314_ifm_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_315_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_315-2_dp_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_316-2_dp_firmware3.3.17 or later
- siemens simatic_s7-300_cpu_318-2_firmware3.3.17 or later
- siemens sinumerik_840d_sl4.8.6, 4.94 or later
- siemens simatic_tdc_cp51m1_firmware1.1.8 or later
- siemens simatic_tdc_cpu555_firmware1.1.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| siemens simatic_s7-300_cpu_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_312_ifm_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_313_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_314_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_314_ifm_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_315_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_315-2_dp_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_316-2_dp_firmware | v < 3.3.17 | 3.3.17 |
| siemens simatic_s7-300_cpu_318-2_firmware | v < 3.3.17 | 3.3.17 |
| siemens sinumerik_840d_sl | v < 4.8.6, v < 4.94 | 4.8.6, 4.94 |
| siemens simatic_tdc_cp51m1_firmware | v < 1.1.8 | 1.1.8 |
| siemens simatic_tdc_cpu555_firmware | v < 1.1.1 | 1.1.1 |
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