CVE-2021-31894

Опубликовано: 13 июл. 2021

Источник: nvd

CVSS3: 8.8

CVSS2: 7.2

EPSS Низкий

Описание

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions < V9.1 SP2), SIMATIC PDM (All versions < V9.2 SP2), SIMATIC STEP 7 V5.X (All versions < V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 SP2 HF1). A directory containing metafiles relevant to devices' configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.

Ссылки

https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf
Patch
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf
Patch
Vendor Advisory

Уязвимые конфигурации

Конфигурация 1

Одновременно

Одно из

cpe:2.3:o:siemens:simatic_pcs_7_firmware:*:*:*:*:*:*:*:*

Версия до 8.2 (включая)

cpe:2.3:o:siemens:simatic_pcs_7_firmware:9.0:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_pcs_7:-:*:*:*:*:*:*:*

Конфигурация 2

Одновременно

cpe:2.3:o:siemens:simatic_pdm_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*

Конфигурация 3

Одновременно

cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*

Версия от 5.0 (включая) до 5.7 (исключая)

cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*

Конфигурация 4

Одновременно

Одно из

cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*

Версия до 5.4 (исключая)

cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hf1:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hf2:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:sp1:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:sp1_hf1:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:sp2:*:*:*:*:*:*

cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*

EPSS

Процентиль: 8%

0.00029

Низкий

8.8 High

CVSS3

7.2 High

CVSS2

Дефекты

CWE-732

Связанные уязвимости

GHSA-rq6h-r956-9p9r

CVSS3: 8.8

github

больше 3 лет назад

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions), SIMATIC PDM (All versions), SIMATIC STEP 7 V5.X (All versions < V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions). A directory containing metafiles relevant to devices' configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.

EPSS

Процентиль: 8%

0.00029

Низкий

8.8 High

CVSS3

7.2 High

CVSS2

Дефекты

CWE-732