Fix proposed to branch: master Review: https://review.openstack.org/564555 ** Changed in: oslo.rootwrap Status: New => In Progress -- You received this bug notification because you are a member of OpenStack Security SIG, which is subscribed to OpenStack. https://bugs.launchpad.net/bugs/1765734 Title: one can bypass filters and execute arbitrary commands on namespaces Status in oslo.rootwrap: In Progress Status in OpenStack Security Advisory: Won't Fix Bug description: When this filter [0] is enabled in conjunction with IpNetnsExecFilter, only commands allowed explicitly through the CommandFilter should get to execute in the specified namespace. However, due to the fact that these two commands are exactly the same: ip netns exec $namespace echo $my_ssh_key >> /root/.ssh/authorized_keys ip net exec $namespace echo $my_ssh_key >> /root/.ssh/authorized_keys One can execute the latter without any CommandFilter for the 'echo' command. This is a big security issue since anyone can make changes to the filesystem and execute arbitrary commands bypassing the IpNetnsExecFilter. The solution is simply patching this code [1] by checking that the second element starts with 'net', and the third one starts with 'e'. [0] ip: IpFilter, ip, root [1] https://github.com/openstack/oslo.rootwrap/blob/0fa59b04e89ad94085780550466368e6f351a9e1/oslo_rootwrap/filters.py#L376 To manage notifications about this bug go to: https://bugs.launchpad.net/oslo.rootwrap/+bug/1765734/+subscriptions