Vulnerability Details : CVE-2021-37204
A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V21.9 < V21.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions >= V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-1500 Software Controller (All versions >= V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SIMATIC S7-PLCSIM Advanced (All versions >= V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packet over port 102/tcp. A restart of the affected device is needed to restore normal operations.
Vulnerability category: Denial of service
Products affected by CVE-2021-37204
- cpe:2.3:a:siemens:simatic_s7-1500_software_controller:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:tim_1531_irc_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_et_200sp_open_controller_cpu_1515sp_pc2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1211c FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1211c_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1212c FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212c_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1214c FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214c_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1215c FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215c_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1217c FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1217c_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1212fc FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212fc_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_drive_controller_cpu_1504d_tf_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_drive_controller_cpu_1507d_tf_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-plcsim_advanced_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-plcsim_advanced_firmware:4.0:-:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1214fc FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214fc_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1200 Cpu 1215fc FirmwareVersions from including (>=) 4.5.0 and before (<) 4.5.2cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215fc_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1510sp-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1510sp-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1510sp FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1510sp_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1511-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1511c-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511c-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1511f-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511f-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1511t-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511t-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1511tf-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511tf-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1512c-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1512c-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1512sp-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1512sp-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1512spf-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1512spf-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1513-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1513f-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513f-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1513r-1 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513r-1_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu Cpu 1513prof-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_cpu_1513prof-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu Cpu 1513pro-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_cpu_1513pro-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1515-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1515f-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515f-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1515r-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515r-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1515t-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515t-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1515tf-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515tf-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516pro F FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516pro_f_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516pro-2 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516pro-2_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516f-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516f-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516t-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516t-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1516tf-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516tf-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1517-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1517f-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517f-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1517tf-3 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517tf-3_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518-4 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518-4_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518f-4 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518f-4_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518hf-4 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518hf-4_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518t-4 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518t-4_firmware:*:*:*:*:*:*:*:*
- Siemens » Simatic S7-1500 Cpu 1518tf-4 FirmwareVersions from including (>=) 2.9.2 and before (<) 2.9.4cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518tf-4_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-37204
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37204
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.1
|
HIGH | AV:N/AC:M/Au:N/C:N/I:N/A:C |
8.6
|
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 | |
|
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
|
Siemens AG |
CWE ids for CVE-2021-37204
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The product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.Assigned by: productcert@siemens.com (Primary)
References for CVE-2021-37204
-
https://cert-portal.siemens.com/productcert/pdf/ssa-838121.pdf
Patch;Vendor Advisory
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