Vulnerability Information
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Vulnerability Title
CNI Plugins Portmap nftables backend intercepts non-local traffic
Vulnerability Description
The CNI portmap plugin allows containers to emulate opening a host port, forwarding that traffic to the container. Versions 1.6.0 through 1.8.0 inadvertently forward all traffic with the same destination port as the host port when the portmap plugin is configured with the nftables backend, thus ignoring the destination IP. This includes traffic not intended for the node itself, i.e. traffic to containers hosted on the node. Containers that request HostPort forwarding can intercept all traffic destined for that port. This requires that the portmap plugin be explicitly configured to use the nftables backend. This issue is fixed in version 1.9.0. To workaround, configure the portmap plugin to use the iptables backend. It does not have this vulnerability.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Vulnerability Type
信息暴露
Vulnerability Title
Plugins 信息泄露漏洞
Vulnerability Description
Plugins是CNI开源的一些参考和示例网络插件。 Plugins 1.6.0版本至1.8.0版本存在信息泄露漏洞，该漏洞源于nftables后端配置不当，可能导致流量拦截。
CVSS Information
N/A
Vulnerability Type
N/A