CVEvulnerability

CVE-2020-15791

6.5 MEDIUM Published 2020-09-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-09-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.5 MEDIUM — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
3.3 LOW — AV:A/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-522

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.

Affected configurations

• 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

Related

Weakness · CWE (1)

  • CWE-522 Insufficiently Protected Credentials weakness

References