National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1002101 Detail

Current Description

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes creates a tar inside the container, copies it over the network, and kubectl unpacks it on the user?s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user?s machine when kubectl cp is called, limited only by the system permissions of the local user. The untar function can both create and follow symbolic links. The issue is resolved in kubectl v1.11.9, v1.12.7, v1.13.5, and v1.14.0.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8


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

CVSS v2.0 Severity and Metrics:

Base Score: 5.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:P) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2019/06/21/1
http://www.securityfocus.com/bid/107652 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHBA-2019:0619
https://access.redhat.com/errata/RHBA-2019:0620
https://access.redhat.com/errata/RHBA-2019:0636
https://access.redhat.com/security/cve/cve-2019-1002101 Third Party Advisory
https://github.com/kubernetes/kubernetes/pull/75037 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPV2RE5RMOGUVP5WJMXKQJZUBBLAFZPZ/

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.11.0
Up to (excluding)
1.11.9
 cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.12.0
Up to (excluding)
1.12.7
 cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.13.0
Up to (excluding)
1.13.5
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:redhat:openshift_container_platform:3.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openshift_container_platform:3.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1002101
NVD Published Date:
04/01/2019
NVD Last Modified:
06/21/2019