Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2019-11249— kubectl cp allows symlink directory traversal

Quick assessment

Affected
Kubernetes Kubernetes
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

kubectl是一款用于运行针对Kubernetes集群的命令的命令行程序。 kubectl中存在路径遍历漏洞。该漏洞源于网络系统或产品未能正确地过滤资源或文件路径中的特殊元素。攻击者可利用该漏洞访问受限目录之外的位置。以下产品及版本受到影响：Kubernetes 1.13.9之前版本，1.14.5之前版本，1.15.2之前版本，1.1版本，1.2版本，1.3版本，1.4版本，1.5版本，1.6版本，1.7版本，1.8版本，1.9版本，1.10版本，1.11版本，1.12版本。

AI Predicted 8.1 Difficulty: Moderate EPSS 3.75% · P90

Possible ATT&CK Techniques 2 AI

T1026 T1105.001
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2019-11249

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
kubectl cp allows symlink directory traversal
Source: CVE Program / CVE List V5
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 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
kubectl 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kubectl是一款用于运行针对Kubernetes集群的命令的命令行程序。 kubectl中存在路径遍历漏洞。该漏洞源于网络系统或产品未能正确地过滤资源或文件路径中的特殊元素。攻击者可利用该漏洞访问受限目录之外的位置。以下产品及版本受到影响：Kubernetes 1.13.9之前版本，1.14.5之前版本，1.15.2之前版本，1.1版本，1.2版本，1.3版本，1.4版本，1.5版本，1.6版本，1.7版本，1.8版本，1.9版本，1.10版本，1.11版本，1.12版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kubernetes Kubernetes prior to 1.13.9 -

II. Public POCs for CVE-2019-11249

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2019-11249

请登录查看更多情报信息。

Vendor Advisories for CVE-2019-11249 (6)

Other References for CVE-2019-11249 (2)

Same Patch Batch · Kubernetes · 2019-08-29 · 6 CVEs total

CVE-2019-11245 kubelet-started container uid changes to root after first restart or if image is already p
CVE-2019-11246 kubectl cp allows symlink directory traversal
CVE-2019-11247 Kubernetes kube-apiserver allows access to custom resources via wrong scope
CVE-2019-11248 Kubernetes kubelet exposes /debug/pprof info on healthz port
CVE-2019-11250 Kubernetes client-go logs authorization headers at debug verbosity levels

IV. Related Vulnerabilities

Same product: Kubernetes
Same vendor: Kubernetes
Same weakness: CWE-61

V. Comments for CVE-2019-11249

No comments yet

Leave a comment