Vulnerability CVE-2018-1002100

Vulnerability Name:

CVE-2018-1002100 (CCN-144813)

Assigned:

2018-05-17

Published:

2018-05-17

Updated:

2019-10-09

Summary:

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

CVSS v3 Severity:

5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): High Availibility (A): None

5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): Low Availibility (A): None

CVSS v2 Severity:

3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): Partial

5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Partial Availibility (A): None

Vulnerability Type:

CWE-20

Vulnerability Consequences:

File Manipulation

References:

Source: MITRE
Type: CNA
CVE-2018-1002100

Source: CCN
Type: Red Hat Bugzilla Bug 1564305
(CVE-2018-1002100) CVE-2018-1002100 kubernetes: Kubectl copy doesn't check for paths outside of it's destination directory

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1564305

Source: XF
Type: UNKNOWN
kubernetes-cve20181002100-file-overwrite(144813)

Source: CCN
Type: kubernetes GIT Repository
Kubectl copy doesn't check for paths outside of it's destination directory. #61297

Source: CONFIRM
Type: Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/61297

Source: MISC
Type: Third Party Advisory
https://hansmi.ch/articles/2018-04-openshift-s2i-security

Vulnerable Configuration:

Configuration 1:

cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.5.0 and <= 1.5.9)

OR cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.6.0 and <= 1.6.14)

OR cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.7.0 and <= 1.7.17)

OR cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.8.0 and <= 1.8.15)

OR cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.9.0 and <= 1.9.5)

Configuration CCN 1:

cpe:/a:kubernetes:kubernetes:1.9.5:-:*:*:*:*:*:*

Denotes that component is vulnerable

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