[Openstack-security] [Bug 1343657] Re: Shell Injection in backup strategies
Amrith Kumar
1343657 at bugs.launchpad.net
Thu Sep 28 02:56:23 UTC 2017
** Changed in: trove
Assignee: Amrith Kumar (amrith) => (unassigned)
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https://bugs.launchpad.net/bugs/1343657
Title:
Shell Injection in backup strategies
Status in OpenStack Security Advisory:
Won't Fix
Status in OpenStack Security Notes:
Fix Released
Status in OpenStack DBaaS (Trove):
Triaged
Bug description:
Trove uses subprocess.Popen with shell=True in
trove/trove/guestagent/strategies/backup/base.py line 61:
def run(self):
self.process = subprocess.Popen(self.command, shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
preexec_fn=os.setsid)
self.pid = self.process.pid
This could be used, maliciously or not, to inject arbitrary commands
into a command line string. An example of this could be triggered is
in trove/trove/guestagent/strategies/backup/mysql_imply.py line 37. It
is creating a MySQL string with single quote. If the password, either
maliciously or just happens to contain another single quote, it will
escape from the command and arbitrary data will be executed instead.
For more information on subprocess, shell=True and command injection
see: https://docs.python.org/2/library/subprocess.html#frequently-
used-arguments
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