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[Openstack-security] [Bug 1611171] Fix included in openstack/designate 6.0.0.0b2


This issue was fixed in the openstack/designate 6.0.0.0b2 development
milestone.

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https://bugs.launchpad.net/bugs/1611171

Title:
  re-runs self via sudo

Status in Cinder:
  Fix Released
Status in Designate:
  Fix Released
Status in ec2-api:
  Fix Released
Status in gce-api:
  Fix Released
Status in Manila:
  In Progress
Status in masakari:
  Fix Released
Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) newton series:
  Fix Committed
Status in OpenStack Security Advisory:
  Won't Fix
Status in Rally:
  Fix Released

Bug description:
  Hello, I'm looking through Designate source code to determine if is
  appropriate to include in Ubuntu Main. This isn't a full security
  audit.

  This looks like trouble:

  ./designate/cmd/manage.py

  def main():
      CONF.register_cli_opt(category_opt)

      try:
          utils.read_config('designate', sys.argv)
          logging.setup(CONF, 'designate')
      except cfg.ConfigFilesNotFoundError:
          cfgfile = CONF.config_file[-1] if CONF.config_file else None
          if cfgfile and not os.access(cfgfile, os.R_OK):
              st = os.stat(cfgfile)
              print(_("Could not read %s. Re-running with sudo") % cfgfile)
              try:
                  os.execvp('sudo', ['sudo', '-u', '#%s' % st.st_uid] + sys.argv)
              except Exception:
                  print(_('sudo failed, continuing as if nothing happened'))

          print(_('Please re-run designate-manage as root.'))
          sys.exit(2)

  
  This is an interesting decision -- if the configuration file is _not_ readable by the user in question, give the executing user complete privileges of the user that owns the unreadable file.

  I'm not a fan of hiding privilege escalation / modifications in
  programs -- if a user had recently used sudo and thus had the
  authentication token already stored for their terminal, this 'hidden'
  use of sudo may be unexpected and unwelcome, especially since it
  appears that argv from the first call leaks through to the sudo call.

  Is this intentional OpenStack style? Or unexpected for you guys too?

  (Feel free to make this public at your convenience.)

  Thanks

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