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ubuntucveUbuntu.comUB:CVE-2020-8559
HistoryJul 22, 2020 - 12:00 a.m.

CVE-2020-8559

2020-07-2200:00:00
ubuntu.com
ubuntu.com
8

6 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

71.6%

The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to
v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on
proxied upgrade requests that could allow an attacker to escalate
privileges from a node compromise to a full cluster compromise.

Notes

Author Note
leosilva kubernates is in fact a kubernetes installer that calls snap, not the package it self.

6 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.003 Low

EPSS

Percentile

71.6%