CVE-2020-14145
openssh: Observable discrepancy leading to an information leak in the algorithm negotiation
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
El lado del cliente en OpenSSH versiones 5.7 hasta 8.4, presenta una Discrepancia Observable que conlleva a una filtración de información en la negociación del algoritmo. Esto permite a atacantes de tipo man-in-the-middle apuntar a unos intentos iniciales de conexión (donde ninguna clave de host para el servidor ha sido almacenada en caché por parte del cliente) NOTA: algunos informes afirman que las versiones 8.5 y 8.6 también están afectadas.
A flaw was found in OpenSSH in versions 5.7 through 8.3, where an Observable Discrepancy occurs and leads to an information leak in the algorithm negotiation. This flaw allows a man-in-the-middle attacker to target initial connection attempts, where there is no host key for the server that has been cached by the client.
Red Hat Advanced Cluster Management for Kubernetes 2.2.10 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console — with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which provide security fixes, bug fixes and container upgrades. Issues addressed include a bypass vulnerability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-06-15 CVE Reserved
- 2020-06-29 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-203: Observable Discrepancy
CAPEC
References (10)
URL | Tag | Source |
---|---|---|
https://docs.ssh-mitm.at/CVE-2020-14145.html | Third Party Advisory | |
https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/session/cve202014145.py | Third Party Advisory | |
https://security.netapp.com/advisory/ntap-20200709-0004 | Third Party Advisory |
|
https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients | Third Party Advisory |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://security.gentoo.org/glsa/202105-35 | 2022-04-28 | |
https://access.redhat.com/security/cve/CVE-2020-14145 | 2021-11-09 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1852930 | 2021-11-09 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Netapp Search vendor "Netapp" | Aff A700s Firmware Search vendor "Netapp" for product "Aff A700s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Aff A700s Search vendor "Netapp" for product "Aff A700s" | - | - |
Safe
|
Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | >= 5.7 < 8.4 Search vendor "Openbsd" for product "Openssh" and version " >= 5.7 < 8.4" | - |
Affected
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Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 8.4 Search vendor "Openbsd" for product "Openssh" and version "8.4" | - |
Affected
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Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 8.5 Search vendor "Openbsd" for product "Openssh" and version "8.5" | - |
Affected
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Openbsd Search vendor "Openbsd" | Openssh Search vendor "Openbsd" for product "Openssh" | 8.6 Search vendor "Openbsd" for product "Openssh" and version "8.6" | - |
Affected
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Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | >= 9.5 Search vendor "Netapp" for product "Active Iq Unified Manager" and version " >= 9.5" | vmware_vsphere |
Affected
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Netapp Search vendor "Netapp" | Hci Management Node Search vendor "Netapp" for product "Hci Management Node" | - | - |
Affected
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Netapp Search vendor "Netapp" | Ontap Select Deploy Administration Utility Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility" | - | - |
Affected
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Netapp Search vendor "Netapp" | Solidfire Search vendor "Netapp" for product "Solidfire" | - | - |
Affected
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Netapp Search vendor "Netapp" | Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage" | - | - |
Affected
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Netapp Search vendor "Netapp" | Hci Compute Node Search vendor "Netapp" for product "Hci Compute Node" | - | - |
Affected
| ||||||
Netapp Search vendor "Netapp" | Hci Storage Node Search vendor "Netapp" for product "Hci Storage Node" | - | - |
Affected
|