Vulnerability Details : CVE-2019-19281
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.
Vulnerability category: Denial of service
Products affected by CVE-2019-19281
- Siemens » Simatic Et 200sp Open Controller Cpu 1515sp Pc2 FirmwareVersions from including (>=) 2.5 and before (<) 20.8cpe:2.3:o:siemens:simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1511-1 Pn FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511-1_pn_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1513-1 Pn FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513-1_pn_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1515-2 Pn FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515-2_pn_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516-3 Pn FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516-3_pn_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516-3 Dp FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516-3_dp_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1517-3 Pn FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517-3_pn_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1517-3 Dp FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517-3_dp_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518-4 Pn FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518-4_pn_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518-4 Dp FirmwareVersions from including (>=) 2.5 and before (<) 2.8cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518-4_dp_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1507s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1508s_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1507s_f_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1508s_f_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-19281
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-19281
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-19281
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The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by:
- nvd@nist.gov (Primary)
- productcert@siemens.com (Secondary)
References for CVE-2019-19281
-
https://www.us-cert.gov/ics/advisories/icsa-20-042-11
Siemens SIMATIC S7-1500 (Update A) | CISA
-
https://cert-portal.siemens.com/productcert/pdf/ssa-750824.pdf
Vendor Advisory
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