cncf container_network_interface 输入验证不恰当

CVE编号

CVE-2021-20206

利用情况

EXP 已公开

补丁情况

官方补丁

披露时间

2021-03-27

漏洞描述

An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use special elements such as "../" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://bugzilla.redhat.com/show_bug.cgi?id=1919391
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	cncf	container_network_interface	*		Up to (excluding) 0.8.1
	运行在以下环境
	系统	alpine_3.14	buildah	*		Up to (excluding) 1.19.4-r0
	运行在以下环境
	系统	alpine_3.15	buildah	*		Up to (excluding) 1.19.4-r0
	运行在以下环境
	系统	alpine_edge	buildah	*		Up to (excluding) 1.19.4-r0
	运行在以下环境
	系统	debian_10	buildah	*		Up to (excluding) 0.4.0+dfsg-1
	运行在以下环境
	系统	debian_11	buildah	*		Up to (excluding) 0.8.0-2
	运行在以下环境
	系统	debian_9	buildah	*		Up to (excluding) 0.3.0+dfsg-1
	运行在以下环境
	系统	debian_sid	buildah	*		Up to (excluding) 0.8.0-2
	运行在以下环境
	系统	fedora_32	buildah	*		Up to (excluding) 1.19.4-1.fc32
	运行在以下环境
	系统	fedora_33	buildah	*		Up to (excluding) 1.19.4-2.fc33
	运行在以下环境
	系统	opensuse_Leap_15.3	buildah	*		Up to (excluding) 1.23.1-150300.8.3.1
查看完整数据

阿里云评分 4.1

• 攻击路径 远程
• 攻击复杂度 容易
• 权限要求 普通权限
• 影响范围 有限影响
• EXP成熟度 EXP 已公开
• 补丁情况 官方补丁
• 数据保密性 数据泄露
• 数据完整性 无影响
• 服务器危害 无影响
• 全网数量 N/A

CWE-ID 漏洞类型 CWE-20 输入验证不恰当 CWE-22 对路径名的限制不恰当（路径遍历）