Based on the above discussion, I'm reclassifying this as "E: not a
vulnerability" http://security.openstack.org/vmt-process.html#incident-
report-taxonomy but have tagged it "security" since it might present a
strengthening opportunity (albeit a very minimal one).
** Information type changed from Private Security to Public
** Tags added: security
** Changed in: ossa
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/1450798
Title:
Multiple command injection vulns in schema_diff tool
Status in OpenStack Compute (Nova):
New
Status in OpenStack Security Advisories:
Won't Fix
Bug description:
These lines in the latest Nova (as of May 1, 2015) are vulnerable to
command injection
https://github.com/openstack/nova/blob/master/tools/db/schema_diff.py#L86
https://github.com/openstack/nova/blob/master/tools/db/schema_diff.py#L103
https://github.com/openstack/nova/blob/master/tools/db/schema_diff.py#L117
In this case
(https://github.com/openstack/nova/blob/master/tools/db/schema_diff.py#L86 ),
if a malicious filename such as "; rm -rf /etc" is provided, the /etc directory
will be removed with the privileges of the user running this script.
In this case
(https://github.com/openstack/nova/blob/master/tools/db/schema_diff.py#L103),
if either a malicious name or filename are provided, the command will
be executed with the privileges of the running user.
In this
case(https://github.com/openstack/nova/blob/master/tools/db/schema_diff.py#L117),
if either a malicious name or filename are provided, the command will
be executed with the privileges of the running user.
I'm not familiar enough with the usage of this module to know all of the
places these inputs can come from, but presumably it can be used in automation,
potentially with elevated privileges. I'm sure the idea of this script is to
allow certain functionality, not unrestricted commands. The way this has been
developed allows unrestricted command execution by tampering with any of the
above mentioned inputs.
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