GLSA-200409-08 : Ruby: CGI::Session creates files insecurely

This script is Copyright (C) 2004-2015 Tenable Network Security, Inc.

Synopsis :

The remote Gentoo host is missing one or more security-related

Description :

The remote host is affected by the vulnerability described in GLSA-200409-08
(Ruby: CGI::Session creates files insecurely)

The CGI::Session::FileStore implementation (and presumably
CGI::Session::PStore), which allow data associated with a particular
Session instance to be written to a file, writes to a file in /tmp with no
regard for secure permissions. As a result, the file is left with whatever
the default umask permissions are, which commonly would allow other local
users to read the data from that session file.

Impact :

Depending on the default umask, any data stored using these methods could
be read by other users on the system.

Workaround :

By changing the default umask on the system to not permit read access to
other users (e.g. 0700), one can prevent these files from being readable by
other users.

See also :

Solution :

All Ruby users should upgrade to the latest version:
# emerge sync
# emerge -pv '>=dev-lang/ruby-your_version'
# emerge '>=dev-lang/ruby-your_version'

Risk factor :

Low / CVSS Base Score : 2.1

Family: Gentoo Local Security Checks

Nessus Plugin ID: 14662 (gentoo_GLSA-200409-08.nasl)

Bugtraq ID:

CVE ID: CVE-2004-0755

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