rubygem-passenger: insecure temp files [LWN.net]

Package(s):

rubygem-passenger

CVE #(s):

CVE-2013-2119

Created:

June 11, 2013

Updated:

July 10, 2013

Description:

From the Red Hat bugzilla:

Michael Scherer reported that the passenger ruby gem, when used in standalone mode, does not use temporary files in a secure manner. In the lib/phusion_passenger/standalone/main.rb's create_nginx_controller function, passenger creates an nginx configuration file insecurely and starts nginx with that configuration file:

       @temp_dir        = "/tmp/passenger-standalone.#{$$}"
       @config_filename = "#{@temp_dir}/config"

If a local attacker were able to create a temporary directory that passenger uses and supply a custom nginx configuration file they could start an nginx instance with their own configuration file. This could result in a denial of service condition for a legitimate service or, if passenger were executed as root (in order to have nginx listen on port 80, for instance), this could lead to a local root compromise.

Alerts:

Fedora	FEDORA-2013-9789	2013-06-11
Fedora	FEDORA-2013-9771	2013-06-11
Mageia	MGASA-2013-0205	2013-07-09
Red Hat	RHSA-2013:1136-01	2013-08-05

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