CVE-2020-35684

Опубликовано: 19 авг. 2021

Источник: nvd

CVSS3: 7.5

CVSS2: 5

EPSS Низкий

Описание

An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the length of the TCP payload within the TCP checksum computation function. When the IP payload size is set to be smaller than the size of the IP header, the TCP checksum computation function may read out of bounds (a low-impact write-out-of-bounds is also possible).

Ссылки

https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf
Mitigation
Third Party Advisory
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
Mitigation
Third Party Advisory
https://www.hcc-embedded.com
Product
https://www.kb.cert.org/vuls/id/608209
Third Party Advisory
US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf
Mitigation
Third Party Advisory
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
Mitigation
Third Party Advisory
https://www.hcc-embedded.com
Product
https://www.kb.cert.org/vuls/id/608209
Third Party Advisory
US Government Resource

Уязвимые конфигурации

Конфигурация 1

cpe:2.3:a:hcc-embedded:nichestack:3.0:*:*:*:*:*:*:*

Конфигурация 2

Одновременно

cpe:2.3:o:siemens:sentron_3wl_com35_firmware:*:*:*:*:*:*:*:*

Версия до 1.2.0 (исключая)

cpe:2.3:h:siemens:sentron_3wl_com35:-:*:*:*:*:*:*:*

Конфигурация 3

Одновременно

cpe:2.3:o:siemens:sentron_3wa_com190_firmware:*:*:*:*:*:*:*:*

Версия до 2.0.0 (исключая)

cpe:2.3:h:siemens:sentron_3wa_com190:-:*:*:*:*:*:*:*

EPSS

Процентиль: 71%

0.00698

Низкий

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-20

Связанные уязвимости

GHSA-748v-rhfv-4hm6

github

больше 3 лет назад

BDU:2021-04494