CVE-2020-15791
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl.
Does this matter?
Lower severity and a low EPSS score (0.72%). Track it; it rarely justifies an emergency change on its own.
Description
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.72% probability · 52th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-522
- Affected
- siemens/simatic s7-300 cpu 312 firmware · siemens/simatic s7-300 cpu 314 firmware · siemens/simatic s7-300 cpu 315-2 dp firmware · siemens/simatic s7-300 cpu 315-2 pn firmware · siemens/simatic s7-300 cpu 317-2 pn firmware · siemens/simatic s7-300 cpu 317-2 dp firmware · siemens/simatic s7-300 cpu 315f-2 dp firmware · siemens/simatic s7-300 cpu 315f-2 pn firmware · siemens/simatic s7-300 cpu 317f-2 pn firmware · siemens/simatic s7-300 cpu 317f-2 dp firmware · siemens/simatic s7-400 cpu 412 firmware · siemens/simatic s7-400 cpu 414 firmware · siemens/simatic s7-400 cpu 416 firmware · siemens/simatic s7-400 cpu 417 firmware
- Source
- productcert@siemens.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.