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githubGitHub Advisory DatabaseGHSA-JQMC-79GX-7G8P
HistoryFeb 11, 2022 - 12:00 a.m.

Incorrect Permission Assignment for Critical Resource in CRI-O

2022-02-1100:00:54
CWE-732
GitHub Advisory Database
github.com
17
sysctls validation
critical resource
safe sysctls
hostipc
hostnetwork
kernel namespace
cri-o 1.18.

CVSS2

4.9

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.2

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

31.4%

An incorrect sysctls validation vulnerability was found in CRI-O 1.18 and earlier. The sysctls from the list of “safe” sysctls specified for the cluster will be applied to the host if an attacker is able to create a pod with a hostIPC and hostNetwork kernel namespace.

Affected configurations

Vulners
Node
kubernetescri-oRange<1.23.1
VendorProductVersionCPE
kubernetescri-o*cpe:2.3:a:kubernetes:cri-o:*:*:*:*:*:*:*:*

CVSS2

4.9

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.2

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

31.4%