Bug 813122 - Add the ability to enable hash randomization in mod_wsgi apps
Summary: Add the ability to enable hash randomization in mod_wsgi apps
Keywords:
Status: CLOSED UPSTREAM
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: mod_wsgi
Version: 6.8
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Luboš Uhliarik
QA Contact: BaseOS QE - Apps
URL:
Whiteboard:
Depends On: 812398
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-04-17 00:57 UTC by Luke Macken
Modified: 2021-01-14 09:34 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 812398
Environment:
Last Closed: 2016-07-28 11:15:58 UTC
Target Upstream Version:


Attachments (Terms of Use)

Description Luke Macken 2012-04-17 00:57:54 UTC
+++ This bug was initially created as a clone of Bug #812398 +++

The latest version of Python supports hash randomization.

http://mail.python.org/pipermail/python-list/2012-April/1290792.html

For webapps deployed with mod_wsgi, it's not trivial to enable this feature to secure your webapp.

I first attemped to enable this feature by modifying apache's init script (https://fedorahosted.org/fedora-infrastructure/ticket/3169). This approach is not ideal, because it adds Python-specific options to the Apache init script, which tends to be distro-specific anyway.

The ideal solution is to add an option to mod_wsgi that allows the user to enable hash randomization. I wrote a patch that adds a WSGIHashSeed option, and sent it upstream.

https://groups.google.com/d/msg/modwsgi/TFJYMJ30Q7w/I4C8JhUv8ScJ

SRPM with patch: http://lmacken.fedorapeople.org/rpms/mod_wsgi-3.3-3.fc18.src.rpm

Comment 2 Joe Orton 2015-07-28 13:36:35 UTC
Any idea why adding PYTHONHASHSEED=random to /etc/sysconfig/httpd is not sufficient?

Comment 4 Luke Macken 2016-02-29 21:56:58 UTC
(In reply to Joe Orton from comment #2)
> Any idea why adding PYTHONHASHSEED=random to /etc/sysconfig/httpd is not
> sufficient?

It is sufficient, but not ideal. I'm fine with closing out this bug if you would like, but we're still shipping very old mod_wsgi in RHEL7, which has a proper configuration directive for this.


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