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CVE-2019-19281

High

Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition. The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the device availability.

SeverityHigh
CVSS7.5
Exploit probability—
ProductSiemens Simatic Et 200sp Open Controller Cpu 1515sp Pc2 Firmware
PublishedMar 10, 2020
First seenMar 10, 2020
Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update
  • siemens simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmware20.8 or later
  • siemens simatic_s7-1500_cpu_1511-1_pn_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1513-1_pn_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1515-2_pn_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1516-3_pn_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1516-3_dp_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1517-3_pn_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1517-3_dp_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1518-4_pn_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1518-4_dp_firmware2.8 or later
  • siemens simatic_s7-1500_cpu_1507s_firmware20.8 or later
  • siemens simatic_s7-1500_cpu_1508s_firmware20.8 or later

Affected products

ProductAffected versionsFixed in
siemens simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmware2.5 ≤ v < 20.820.8
siemens simatic_s7-1500_cpu_1511-1_pn_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1513-1_pn_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1515-2_pn_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1516-3_pn_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1516-3_dp_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1517-3_pn_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1517-3_dp_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1518-4_pn_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1518-4_dp_firmware2.5 ≤ v < 2.82.8
siemens simatic_s7-1500_cpu_1507s_firmware2.5 ≤ v < 20.820.8
siemens simatic_s7-1500_cpu_1508s_firmware2.5 ≤ v < 20.820.8
siemens simatic_s7-1500_cpu_1507s_f_firmware2.5 ≤ v < 20.820.8
siemens simatic_s7-1500_cpu_1508s_f_firmware2.5 ≤ v < 20.820.8

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