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

low Nessus Plugin ID 14662

Synopsis

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

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.

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'

See Also

https://security.gentoo.org/glsa/200409-08

Plugin Details

Severity: Low

ID: 14662

File Name: gentoo_GLSA-200409-08.nasl

Version: 1.15

Type: local

Published: 9/4/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Low

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:ruby, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 9/3/2004

Reference Information

CVE: CVE-2004-0755

GLSA: 200409-08