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. 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
siemensCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 25%
VendorProductVersion
siemenssimatic_s7-300_cpu_312_firmware
*
siemenssimatic_s7-300_cpu_314_firmware
*
siemenssimatic_s7-300_cpu_315-2_dp_firmware
*
siemenssimatic_s7-300_cpu_315-2_pn_firmware
*
siemenssimatic_s7-300_cpu_317-2_pn_firmware
*
siemenssimatic_s7-300_cpu_317-2_dp_firmware
*
siemenssimatic_s7-300_cpu_315f-2_dp_firmware
*
siemenssimatic_s7-300_cpu_315f-2_pn_firmware
*
siemenssimatic_s7-300_cpu_317f-2_pn_firmware
*
siemenssimatic_s7-300_cpu_317f-2_dp_firmware
*
siemenssimatic_s7-400_cpu_412_firmware
*
siemenssimatic_s7-400_cpu_414_firmware
*
siemenssimatic_s7-400_cpu_416_firmware
*
siemenssimatic_s7-400_cpu_417_firmware
*
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://cert-portal.siemens.com/productcert/pdf/ssa-381684.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-381684.pdf