6.5
MEDIUM
CVE-2019-11246
Kubernetes kubectl cp Command Execution Vulnerability
Description

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, 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. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.

INFO

Published Date :

Aug. 29, 2019, 1:15 a.m.

Last Modified :

Nov. 7, 2023, 3:02 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2019-11246 has a 12 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2019-11246 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Kubernetes kubernetes
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-11246.

URL Resource
https://github.com/kubernetes/kubernetes/pull/76788 Patch Third Party Advisory
https://groups.google.com/forum/#%21topic/kubernetes-security-announce/NLs2TGbfPdo
https://security.netapp.com/advisory/ntap-20190919-0003/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

整理容器逃逸相关的漏洞和exploits.

Makefile C Python Dockerfile Shell Go

Updated: 2 months, 1 week ago
7 stars 0 fork 0 watcher
Born at : March 20, 2024, 10:19 a.m. This repo has been linked 27 different CVEs too.

None

Updated: 6 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 24, 2024, 8:03 a.m. This repo has been linked 37 different CVEs too.

Certified Kubernetes Security Specialist (CKS) 2023-2024

cks cks-exam cks-exam-preparation ckss

Jinja Shell

Updated: 1 week, 4 days ago
52 stars 14 fork 14 watcher
Born at : Oct. 5, 2023, 5:53 p.m. This repo has been linked 4 different CVEs too.

None

Updated: 8 months, 2 weeks ago
4 stars 0 fork 0 watcher
Born at : Aug. 15, 2022, 11:26 a.m. This repo has been linked 35 different CVEs too.

⚙ DevSecOps Kubernetes Playground ("A Hacker's Guide to Kubernetes")

Dockerfile Shell Ruby Smarty Jinja HCL

Updated: 1 month ago
14 stars 2 fork 2 watcher
Born at : July 1, 2022, 7:12 a.m. This repo has been linked 57 different CVEs too.

None

Dockerfile

Updated: 2 years, 4 months ago
0 stars 0 fork 0 watcher
Born at : April 27, 2022, 3:28 a.m. This repo has been linked 19 different CVEs too.

None

Updated: 3 months ago
1 stars 1 fork 1 watcher
Born at : Aug. 13, 2021, 1:23 a.m. This repo has been linked 8 different CVEs too.

Metarget is a framework providing automatic constructions of vulnerable infrastructures.

cloud-native kubernetes container cloud-native-security kubernetes-security container-security container-escape target vulnerable-infrastructure vulnerabilities vulnerable-scenes vulnerable-infrastructures privilege-escalation kernel-exploitation

Python Shell HTML JavaScript PHP Perl Dockerfile C

Updated: 1 week, 6 days ago
1053 stars 163 fork 163 watcher
Born at : April 9, 2021, 4:20 a.m. This repo has been linked 47 different CVEs too.

awesome resources about cloud native security 🐿

cloud-native container-security cloud-native-security kubernetes-security container-escape k8s kubernetes container docker docker-security serverless serverless-security cloud-security cloud-computing

Updated: 2 weeks, 6 days ago
303 stars 51 fork 51 watcher
Born at : March 23, 2021, 12:40 p.m. This repo has been linked 37 different CVEs too.

None

Updated: 3 years, 11 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 7, 2020, 7:09 a.m. This repo has been linked 1 different CVEs too.

Shortlist of preparation materials to pass CKS exam

kubernetes-security k8s cks-exam-preparation

HTML

Updated: 1 month, 1 week ago
65 stars 34 fork 34 watcher
Born at : Oct. 6, 2020, 5:41 p.m. This repo has been linked 1 different CVEs too.

This repository is a collection of resources to prepare for the Certified Kubernetes Security Specialist (CKSS) exam.

kubernetes security certification hardening golang cncf cloud-native vulnerabilities monitoring logging cluster ckss cks cks-exam cluster-hardening kubernetes-platforms securing-kubernetes

HTML

Updated: 2 weeks ago
477 stars 132 fork 132 watcher
Born at : Aug. 17, 2020, 11:05 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-11246 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-11246 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Kubernetes https://groups.google.com/forum/#%21topic/kubernetes-security-announce/NLs2TGbfPdo [No types assigned]
    Removed Reference Kubernetes https://groups.google.com/forum/#!topic/kubernetes-security-announce/NLs2TGbfPdo
  • Modified Analysis by [email protected]

    Oct. 02, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://security.netapp.com/advisory/ntap-20190919-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20190919-0003/ Third Party Advisory
    Removed CWE NIST CWE-264
    Added CWE NIST CWE-22
  • CVE Modified by [email protected]

    Feb. 10, 2020

    Action Type Old Value New Value
    Changed Description The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, 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. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11. The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, 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. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.
  • CVE Modified by [email protected]

    Sep. 19, 2019

    Action Type Old Value New Value
    Changed Description The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, 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. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11. The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, 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. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.
    Added Reference https://security.netapp.com/advisory/ntap-20190919-0003/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 04, 2019

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://github.com/kubernetes/kubernetes/pull/76788 No Types Assigned https://github.com/kubernetes/kubernetes/pull/76788 Patch, Third Party Advisory
    Changed Reference Type https://groups.google.com/forum/#!topic/kubernetes-security-announce/NLs2TGbfPdo No Types Assigned https://groups.google.com/forum/#!topic/kubernetes-security-announce/NLs2TGbfPdo Third Party Advisory
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.0.0 up to (including) 1.12.10 *cpe:2.3:a:kubernetes:kubernetes:1.12.11:beta0:*:*:*:*:*:* *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.13.0 up to (excluding) 1.13.9 *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.14.0 up to (excluding) 1.14.5 *cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* versions from (including) 1.15.0 up to (excluding) 1.15.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-11246 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.03%

score

0.45095

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability