Rapid7 Vulnerability & Exploit Database

Kubernetes: CVE-2019-11251: Nefarious file using a symlink

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Kubernetes: CVE-2019-11251: Nefarious file using a symlink

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
02/03/2020
Created
02/15/2020
Added
02/14/2020
Modified
02/14/2020

Description

The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.

Solution(s)

  • kubernetes-upgrade-1_13_11
  • kubernetes-upgrade-1_14_7
  • kubernetes-upgrade-1_15_4

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;