A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle (MitM) attacks. A malicious container can exploit this flaw by sending rogue IPv6 router advertisements to the host or other containers, to redirect traffic to the malicious container.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-10749
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10749
• https://groups.google.com/forum/#!topic/kubernetes-security-announce/BMb_6ICCfp8
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DV3HCDZYUTPPVDUMTZXDKK6IUO3JMGJC/
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00063.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00065.html
• https://github.com/containernetworking/plugins/releases/tag/v0.8.6