Vulnerability-Lookup

BDU:2021-03494 (CVE-2020-14145)

Vulnerability from fstec – Published: 2021-07-08 – Updated: 2026-06-01 – View on bdu.fstec.ru Fixed

Title

Уязвимость средства криптографической защиты OpenSSH, связанная с отсутствием защиты служебных данных, позволяющая нарушителю раскрыть защищаемую информацию

Summary

Уязвимость средства криптографической защиты OpenSSH связана с отсутствием защиты служебных данных. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, раскрыть защищаемую информацию в результате кэширования ключа хоста для сервера

Severity

7.1 (High) CVSS 2.0


                      
                        AV:N/AC:M/Au:N/C:C/I:N/A:N

5.9 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Information gathering

Incidents

Being clarified

Remediation

Software update

CWE

CWE-200 - Раскрытие информации

Aliases

CVE-2020-14145

References

9 references

URL
https://cxsecurity.com/cveshow/CVE-2020-14145/
https://nvd.nist.gov/vuln/detail/CVE-2020-14145
https://www.suse.com/security/cve/CVE-2020-14145/
https://security.netapp.com/advisory/ntap-20200709-0004/
https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0426SE17
https://wiki.astralinux.ru/astra-linux-se47-bulletin-2023-0727SE47
https://ubuntu.com/security/CVE-2020-14145
https://abf.rosa.ru/advisories/ROSA-SA-2025-3074
https://abf.rosa.ru/advisories/ROSA-SA-2025-3076

Impacted products

6 products from 5 vendors

Vendors

Canonical Ltd., Novell Inc., The OpenBSD Project, ООО «РусБИТех-Астра», АО «НТЦ ИТ РОСА»

Products

Ubuntu, Suse Linux Enterprise Server, OpenSSH, Astra Linux Special Edition (запись в едином реестре российских программ №369), ROSA Virtualization (запись в едином реестре российских программ №5091), ROSA Virtualization 3.0 (запись в едином реестре российских программ №21308)

Versions

14.04 (Ubuntu), 12 SP2-BCL (Suse Linux Enterprise Server), 12 SP2-ESPOS (Suse Linux Enterprise Server), 12 SP2-LTSS (Suse Linux Enterprise Server), 12 SP3-LTSS (Suse Linux Enterprise Server), 14.04 ESM (Ubuntu), 12 SP3-BCL (Suse Linux Enterprise Server), 12 SP5 (Suse Linux Enterprise Server), 12 SP3-ESPOS (Suse Linux Enterprise Server), 15-LTSS (Suse Linux Enterprise Server), 20.04 LTS (Ubuntu), 12 SP4 LTSS (Suse Linux Enterprise Server), 12 SP4-ESPOS (Suse Linux Enterprise Server), 16.04 ESM (Ubuntu), от 5.7 до 8.4 включительно (OpenSSH), 1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), 2.1 (ROSA Virtualization), 18.04 ESM (Ubuntu), 3.0 (ROSA Virtualization 3.0)

Product types

Operating system, Security software, Virtualization software

Platforms

Canonical Ltd. Ubuntu 14.04, Novell Inc. Suse Linux Enterprise Server 12 SP2-BCL, Novell Inc. Suse Linux Enterprise Server 12 SP2-ESPOS, Novell Inc. Suse Linux Enterprise Server 12 SP2-LTSS, Novell Inc. Suse Linux Enterprise Server 12 SP3-LTSS, Canonical Ltd. Ubuntu 14.04 ESM, Novell Inc. Suse Linux Enterprise Server 12 SP3-BCL, Novell Inc. Suse Linux Enterprise Server 12 SP5, Novell Inc. Suse Linux Enterprise Server 12 SP3-ESPOS, Novell Inc. Suse Linux Enterprise Server 15-LTSS, Canonical Ltd. Ubuntu 20.04 LTS, Novell Inc. Suse Linux Enterprise Server 12 SP4 LTSS, Novell Inc. Suse Linux Enterprise Server 12 SP4-ESPOS, Canonical Ltd. Ubuntu 16.04 ESM, ООО «РусБИТех-Астра» Astra Linux Special Edition 1.7 (запись в едином реестре российских программ №369), ООО «РусБИТех-Астра» Astra Linux Special Edition 4.7 ARM (запись в едином реестре российских программ №369), АО «НТЦ ИТ РОСА» ROSA Virtualization 2.1 (запись в едином реестре российских программ №5091), Canonical Ltd. Ubuntu 18.04 ESM, АО «НТЦ ИТ РОСА» ROSA Virtualization 3.0 3.0 (запись в едином реестре российских программ №21308)

Mitigations

Обновление средства криптографической защиты OpenSSH до актуальной версии Для программных продуктов Novell Inc.: https://www.suse.com/security/cve/CVE-2020-14145/ Для Ubuntu: https://ubuntu.com/security/CVE-2020-14145 Для программных продуктов NetApp Inc.: https://security.netapp.com/advisory/ntap-20200709-0004/ Для ОС Astra Linux Special Edition 1.7: использование рекомендаций производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0426SE17 Для Astra Linux Special Edition 4.7 для архитектуры ARM: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2023-0727SE47 Для системы управления средой виртуализации «ROSA Virtualization»: https://abf.rosa.ru/advisories/ROSA-SA-2025-3074 Для программной системы управления средой виртуализации с подсистемой безагентного резервного копирования виртуальных машин «ROSA Virtualization 3.0»: https://abf.rosa.ru/advisories/ROSA-SA-2025-3076

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:M/Au:N/C:C/I:N/A:N",
  "CVSS 3.0": "AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Canonical Ltd., Novell Inc., The OpenBSD Project, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "14.04 (Ubuntu), 12 SP2-BCL (Suse Linux Enterprise Server), 12 SP2-ESPOS (Suse Linux Enterprise Server), 12 SP2-LTSS (Suse Linux Enterprise Server), 12 SP3-LTSS (Suse Linux Enterprise Server), 14.04 ESM (Ubuntu), 12 SP3-BCL (Suse Linux Enterprise Server), 12 SP5 (Suse Linux Enterprise Server), 12 SP3-ESPOS (Suse Linux Enterprise Server), 15-LTSS (Suse Linux Enterprise Server), 20.04 LTS (Ubuntu), 12 SP4 LTSS (Suse Linux Enterprise Server), 12 SP4-ESPOS (Suse Linux Enterprise Server), 16.04 ESM (Ubuntu), \u043e\u0442 5.7 \u0434\u043e 8.4 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (OpenSSH), 1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), 2.1 (ROSA Virtualization), 18.04 ESM (Ubuntu), 3.0 (ROSA Virtualization 3.0)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b OpenSSH \u0434\u043e \u0430\u043a\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Novell Inc.:\nhttps://www.suse.com/security/cve/CVE-2020-14145/\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/CVE-2020-14145\n\n \u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 NetApp Inc.:\nhttps://security.netapp.com/advisory/ntap-20200709-0004/\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux Special Edition 1.7:\n\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0426SE17\n\n\u0414\u043b\u044f Astra Linux Special Edition 4.7 \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b ARM:\nhttps://wiki.astralinux.ru/astra-linux-se47-bulletin-2023-0727SE47\n\n\u0414\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0440\u0435\u0434\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u00abROSA Virtualization\u00bb: https://abf.rosa.ru/advisories/ROSA-SA-2025-3074\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0440\u0435\u0434\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u043e\u0439 \u0431\u0435\u0437\u0430\u0433\u0435\u043d\u0442\u043d\u043e\u0433\u043e \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u0433\u043e \u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d \u00abROSA Virtualization 3.0\u00bb: https://abf.rosa.ru/advisories/ROSA-SA-2025-3076",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "29.06.2020",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "01.06.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "08.07.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-03494",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2020-14145",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Ubuntu, Suse Linux Enterprise Server, OpenSSH, Astra Linux Special Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), ROSA Virtualization (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21165091), ROSA Virtualization 3.0 (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u211621308)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Canonical Ltd. Ubuntu 14.04 , Novell Inc. Suse Linux Enterprise Server 12 SP2-BCL , Novell Inc. Suse Linux Enterprise Server 12 SP2-ESPOS , Novell Inc. Suse Linux Enterprise Server 12 SP2-LTSS , Novell Inc. Suse Linux Enterprise Server 12 SP3-LTSS , Canonical Ltd. Ubuntu 14.04 ESM , Novell Inc. Suse Linux Enterprise Server 12 SP3-BCL , Novell Inc. Suse Linux Enterprise Server 12 SP5 , Novell Inc. Suse Linux Enterprise Server 12 SP3-ESPOS , Novell Inc. Suse Linux Enterprise Server 15-LTSS , Canonical Ltd. Ubuntu 20.04 LTS , Novell Inc. Suse Linux Enterprise Server 12 SP4 LTSS , Novell Inc. Suse Linux Enterprise Server 12 SP4-ESPOS , Canonical Ltd. Ubuntu 16.04 ESM , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 4.7 ARM (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb ROSA Virtualization 2.1  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21165091), Canonical Ltd. Ubuntu 18.04 ESM , \u0410\u041e \u00ab\u041d\u0422\u0426 \u0418\u0422 \u0420\u041e\u0421\u0410\u00bb ROSA Virtualization 3.0 3.0  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u211621308)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b OpenSSH, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u0441\u043b\u0443\u0436\u0435\u0431\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 (CWE-200)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0437\u0430\u0449\u0438\u0442\u044b OpenSSH \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u0435\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u0441\u043b\u0443\u0436\u0435\u0431\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e, \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043a\u043b\u044e\u0447\u0430 \u0445\u043e\u0441\u0442\u0430 \u0434\u043b\u044f \u0441\u0435\u0440\u0432\u0435\u0440\u0430",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://cxsecurity.com/cveshow/CVE-2020-14145/\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-14145\nhttps://www.suse.com/security/cve/CVE-2020-14145/\nhttps://security.netapp.com/advisory/ntap-20200709-0004/\nhttps://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0426SE17\n\nhttps://wiki.astralinux.ru/astra-linux-se47-bulletin-2023-0727SE47\nhttps://ubuntu.com/security/CVE-2020-14145\nhttps://abf.rosa.ru/advisories/ROSA-SA-2025-3074\nhttps://abf.rosa.ru/advisories/ROSA-SA-2025-3076",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e \u0437\u0430\u0449\u0438\u0442\u044b, \u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438/\u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-200",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,1)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,9)"
}

CVE-2020-14145 (GCVE-0-2020-14145)

Vulnerability from cvelistv5 – Published: 2020-06-29 17:33 – Updated: 2025-12-18 14:41

Summary

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-18 14:41 UTC

CWE

n/a
CWE-203 - Observable Discrepancy

Assigner

mitre mitre root

References

8 references

URL	Tags
https://github.com/openssh/openssh-portable/compa…	x_refsource_MISC
https://www.fzi.de/en/news/news/detail-en/artikel…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020070…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2020/12/02/1	mailing-listx_refsource_MLIST
https://anongit.mindrot.org/openssh.git/commit/?i…	x_refsource_MISC
https://docs.ssh-mitm.at/CVE-2020-14145.html	x_refsource_MISC
https://github.com/ssh-mitm/ssh-mitm/blob/master/…	x_refsource_MISC
https://security.gentoo.org/glsa/202105-35	vendor-advisoryx_refsource_GENTOO

Show details on NVD website

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To clipboard

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        "title": "CVE Program Container"
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        "metrics": [
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            "cvssV3_1": {
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              "attackVector": "NETWORK",
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              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
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              "name": "https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/",
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    "assignerShortName": "mitre",
    "cveId": "CVE-2020-14145",
    "datePublished": "2020-06-29T17:33:36.000Z",
    "dateReserved": "2020-06-15T00:00:00.000Z",
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2021-03494 (CVE-2020-14145)

CVE-2020-14145 (GCVE-0-2020-14145)

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Related by attack behaviour