diff mbox series

python: Harden more tools agains "rogue" modules

Message ID 20231206143151.1047189-1-vmojzis@redhat.com (mailing list archive)
State Accepted
Delegated to: Petr Lautrbach
Headers show
Series python: Harden more tools agains "rogue" modules | expand

Commit Message

Vit Mojzis Dec. 6, 2023, 2:31 p.m. UTC
Python scripts present in the same directory as the tool
override regular modules.

Fixes:
      #cat > /usr/bin/signal.py <<EOF
      import sys
      print("BAD GUY!", file=sys.stderr)
      sys.exit(1)
      EOF
      #sandbox date
      BAD GUY!

Signed-off-by: Vit Mojzis <vmojzis@redhat.com>
---
 dbus/selinux_server.py       | 2 +-
 gui/polgengui.py             | 2 +-
 gui/system-config-selinux.py | 6 +++---
 sandbox/sandbox              | 2 +-
 sandbox/start                | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

Comments

James Carter Dec. 12, 2023, 2:10 p.m. UTC | #1
On Wed, Dec 6, 2023 at 9:33 AM Vit Mojzis <vmojzis@redhat.com> wrote:
>
> Python scripts present in the same directory as the tool
> override regular modules.
>
> Fixes:
>       #cat > /usr/bin/signal.py <<EOF
>       import sys
>       print("BAD GUY!", file=sys.stderr)
>       sys.exit(1)
>       EOF
>       #sandbox date
>       BAD GUY!
>
> Signed-off-by: Vit Mojzis <vmojzis@redhat.com>

Acked-by: James Carter <jwcart2@gmail.com>

> ---
>  dbus/selinux_server.py       | 2 +-
>  gui/polgengui.py             | 2 +-
>  gui/system-config-selinux.py | 6 +++---
>  sandbox/sandbox              | 2 +-
>  sandbox/start                | 2 +-
>  5 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/dbus/selinux_server.py b/dbus/selinux_server.py
> index a969f226..469c526f 100644
> --- a/dbus/selinux_server.py
> +++ b/dbus/selinux_server.py
> @@ -1,4 +1,4 @@
> -#!/usr/bin/python3
> +#!/usr/bin/python3 -EsI
>
>  import dbus
>  import dbus.service
> diff --git a/gui/polgengui.py b/gui/polgengui.py
> index 16116ba6..9c151a11 100644
> --- a/gui/polgengui.py
> +++ b/gui/polgengui.py
> @@ -1,4 +1,4 @@
> -#!/usr/bin/python3 -Es
> +#!/usr/bin/python3 -EsI
>  #
>  # polgengui.py - GUI for SELinux Config tool in system-config-selinux
>  #
> diff --git a/gui/system-config-selinux.py b/gui/system-config-selinux.py
> index 9f53b7fe..0b6ba4b5 100644
> --- a/gui/system-config-selinux.py
> +++ b/gui/system-config-selinux.py
> @@ -1,4 +1,4 @@
> -#!/usr/bin/python3 -Es
> +#!/usr/bin/python3 -EsI
>  #
>  # system-config-selinux.py - GUI for SELinux Config tool in system-config-selinux
>  #
> @@ -32,6 +32,8 @@ except RuntimeError as e:
>      print("This is a graphical application and requires DISPLAY to be set.")
>      sys.exit(1)
>
> +sys.path.append('/usr/share/system-config-selinux')
> +
>  from gi.repository import GObject
>  import statusPage
>  import booleansPage
> @@ -66,8 +68,6 @@ except:
>
>  version = "1.0"
>
> -sys.path.append('/usr/share/system-config-selinux')
> -
>
>  ##
>  ## Pull in the Glade file
> diff --git a/sandbox/sandbox b/sandbox/sandbox
> index a2762a7d..fe631a92 100644
> --- a/sandbox/sandbox
> +++ b/sandbox/sandbox
> @@ -1,4 +1,4 @@
> -#!/usr/bin/python3 -Es
> +#!/usr/bin/python3 -EsI
>  # Authors: Dan Walsh <dwalsh@redhat.com>
>  # Authors: Thomas Liu <tliu@fedoraproject.org>
>  # Authors: Josh Cogliati
> diff --git a/sandbox/start b/sandbox/start
> index 4ed3cb5c..3c1a1783 100644
> --- a/sandbox/start
> +++ b/sandbox/start
> @@ -1,4 +1,4 @@
> -#!/usr/bin/python3 -Es
> +#!/usr/bin/python3 -EsI
>  try:
>      from subprocess import getstatusoutput
>  except ImportError:
> --
> 2.41.0
>
>
James Carter Dec. 12, 2023, 4:44 p.m. UTC | #2
On Tue, Dec 12, 2023 at 9:10 AM James Carter <jwcart2@gmail.com> wrote:
>
> On Wed, Dec 6, 2023 at 9:33 AM Vit Mojzis <vmojzis@redhat.com> wrote:
> >
> > Python scripts present in the same directory as the tool
> > override regular modules.
> >
> > Fixes:
> >       #cat > /usr/bin/signal.py <<EOF
> >       import sys
> >       print("BAD GUY!", file=sys.stderr)
> >       sys.exit(1)
> >       EOF
> >       #sandbox date
> >       BAD GUY!
> >
> > Signed-off-by: Vit Mojzis <vmojzis@redhat.com>
>
> Acked-by: James Carter <jwcart2@gmail.com>
>

Merged.
Thanks,
Jim


> > ---
> >  dbus/selinux_server.py       | 2 +-
> >  gui/polgengui.py             | 2 +-
> >  gui/system-config-selinux.py | 6 +++---
> >  sandbox/sandbox              | 2 +-
> >  sandbox/start                | 2 +-
> >  5 files changed, 7 insertions(+), 7 deletions(-)
> >
> > diff --git a/dbus/selinux_server.py b/dbus/selinux_server.py
> > index a969f226..469c526f 100644
> > --- a/dbus/selinux_server.py
> > +++ b/dbus/selinux_server.py
> > @@ -1,4 +1,4 @@
> > -#!/usr/bin/python3
> > +#!/usr/bin/python3 -EsI
> >
> >  import dbus
> >  import dbus.service
> > diff --git a/gui/polgengui.py b/gui/polgengui.py
> > index 16116ba6..9c151a11 100644
> > --- a/gui/polgengui.py
> > +++ b/gui/polgengui.py
> > @@ -1,4 +1,4 @@
> > -#!/usr/bin/python3 -Es
> > +#!/usr/bin/python3 -EsI
> >  #
> >  # polgengui.py - GUI for SELinux Config tool in system-config-selinux
> >  #
> > diff --git a/gui/system-config-selinux.py b/gui/system-config-selinux.py
> > index 9f53b7fe..0b6ba4b5 100644
> > --- a/gui/system-config-selinux.py
> > +++ b/gui/system-config-selinux.py
> > @@ -1,4 +1,4 @@
> > -#!/usr/bin/python3 -Es
> > +#!/usr/bin/python3 -EsI
> >  #
> >  # system-config-selinux.py - GUI for SELinux Config tool in system-config-selinux
> >  #
> > @@ -32,6 +32,8 @@ except RuntimeError as e:
> >      print("This is a graphical application and requires DISPLAY to be set.")
> >      sys.exit(1)
> >
> > +sys.path.append('/usr/share/system-config-selinux')
> > +
> >  from gi.repository import GObject
> >  import statusPage
> >  import booleansPage
> > @@ -66,8 +68,6 @@ except:
> >
> >  version = "1.0"
> >
> > -sys.path.append('/usr/share/system-config-selinux')
> > -
> >
> >  ##
> >  ## Pull in the Glade file
> > diff --git a/sandbox/sandbox b/sandbox/sandbox
> > index a2762a7d..fe631a92 100644
> > --- a/sandbox/sandbox
> > +++ b/sandbox/sandbox
> > @@ -1,4 +1,4 @@
> > -#!/usr/bin/python3 -Es
> > +#!/usr/bin/python3 -EsI
> >  # Authors: Dan Walsh <dwalsh@redhat.com>
> >  # Authors: Thomas Liu <tliu@fedoraproject.org>
> >  # Authors: Josh Cogliati
> > diff --git a/sandbox/start b/sandbox/start
> > index 4ed3cb5c..3c1a1783 100644
> > --- a/sandbox/start
> > +++ b/sandbox/start
> > @@ -1,4 +1,4 @@
> > -#!/usr/bin/python3 -Es
> > +#!/usr/bin/python3 -EsI
> >  try:
> >      from subprocess import getstatusoutput
> >  except ImportError:
> > --
> > 2.41.0
> >
> >
diff mbox series

Patch

diff --git a/dbus/selinux_server.py b/dbus/selinux_server.py
index a969f226..469c526f 100644
--- a/dbus/selinux_server.py
+++ b/dbus/selinux_server.py
@@ -1,4 +1,4 @@ 
-#!/usr/bin/python3
+#!/usr/bin/python3 -EsI
 
 import dbus
 import dbus.service
diff --git a/gui/polgengui.py b/gui/polgengui.py
index 16116ba6..9c151a11 100644
--- a/gui/polgengui.py
+++ b/gui/polgengui.py
@@ -1,4 +1,4 @@ 
-#!/usr/bin/python3 -Es
+#!/usr/bin/python3 -EsI
 #
 # polgengui.py - GUI for SELinux Config tool in system-config-selinux
 #
diff --git a/gui/system-config-selinux.py b/gui/system-config-selinux.py
index 9f53b7fe..0b6ba4b5 100644
--- a/gui/system-config-selinux.py
+++ b/gui/system-config-selinux.py
@@ -1,4 +1,4 @@ 
-#!/usr/bin/python3 -Es
+#!/usr/bin/python3 -EsI
 #
 # system-config-selinux.py - GUI for SELinux Config tool in system-config-selinux
 #
@@ -32,6 +32,8 @@  except RuntimeError as e:
     print("This is a graphical application and requires DISPLAY to be set.")
     sys.exit(1)
 
+sys.path.append('/usr/share/system-config-selinux')
+
 from gi.repository import GObject
 import statusPage
 import booleansPage
@@ -66,8 +68,6 @@  except:
 
 version = "1.0"
 
-sys.path.append('/usr/share/system-config-selinux')
-
 
 ##
 ## Pull in the Glade file
diff --git a/sandbox/sandbox b/sandbox/sandbox
index a2762a7d..fe631a92 100644
--- a/sandbox/sandbox
+++ b/sandbox/sandbox
@@ -1,4 +1,4 @@ 
-#!/usr/bin/python3 -Es
+#!/usr/bin/python3 -EsI
 # Authors: Dan Walsh <dwalsh@redhat.com>
 # Authors: Thomas Liu <tliu@fedoraproject.org>
 # Authors: Josh Cogliati
diff --git a/sandbox/start b/sandbox/start
index 4ed3cb5c..3c1a1783 100644
--- a/sandbox/start
+++ b/sandbox/start
@@ -1,4 +1,4 @@ 
-#!/usr/bin/python3 -Es
+#!/usr/bin/python3 -EsI
 try:
     from subprocess import getstatusoutput
 except ImportError: