Perl Safe Module 'reval()' and 'rdo()' Restriction-Bypass Vulnerabilities

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_perl_safe_40302.nasl 5323 2017-02-17 08:49:23Z teissa $
#
# Perl Safe Module 'reval()' and 'rdo()' Restriction-Bypass Vulnerabilities
#
# Authors:
# Michael Meyer <[email protected]>
#
# Copyright:
# Copyright (c) 2010 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

tag_summary = "The Perl Safe module is prone to multiple restriction-bypass
vulnerabilities. Successful exploits could allow an attacker
to execute arbitrary Perl code outside of the restricted root.

Versions prior to Safe 2.25 are vulnerable.";

tag_solution = "Updates are available. Please see the references for more information.";

if (description)
{
 script_id(100672);
 script_version("$Revision: 5323 $");
 script_tag(name:"last_modification", value:"$Date: 2017-02-17 09:49:23 +0100 (Fri, 17 Feb 2017) $");
 script_tag(name:"creation_date", value:"2010-06-14 14:19:59 +0200 (Mon, 14 Jun 2010)");
 script_bugtraq_id(40302);
 script_cve_id("CVE-2010-1168");
 script_tag(name:"cvss_base", value:"7.5");
 script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");

 script_name("Perl Safe Module 'reval()' and 'rdo()' Restriction-Bypass Vulnerabilities");

 script_xref(name : "URL" , value : "https://www.securityfocus.com/bid/40302");
 script_xref(name : "URL" , value : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-1168");
 script_xref(name : "URL" , value : "http://permalink.gmane.org/gmane.comp.security.oss.general/2932");
 script_xref(name : "URL" , value : "http://blogs.perl.org/users/rafael_garcia-suarez/2010/03/new-safepm-fixes-security-hole.html");
 script_xref(name : "URL" , value : "http://cpansearch.perl.org/src/RGARCIA/Safe-2.27/Changes");
 script_xref(name : "URL" , value : "http://search.cpan.org/~rgarcia/Safe-2.27/Safe.pm");

 script_tag(name:"qod_type", value:"executable_version");
 script_category(ACT_GATHER_INFO);
 script_family("General");
 script_copyright("This script is Copyright (C) 2010 Greenbone Networks GmbH");
 script_dependencies("gather-package-list.nasl");
 script_mandatory_keys("login/SSH/success");
 script_tag(name : "solution" , value : tag_solution);
 script_tag(name : "summary" , value : tag_summary);
 exit(0);
}

include("ssh_func.inc");
include("version_func.inc");

sock = ssh_login_or_reuse_connection();
if(!sock){
    exit(0);
}

cmd  = "perl -MSafe -e 'print";
cmd += '"$Safe::VERSION"';
cmd += "'"; 

version = ssh_cmd(socket:sock, cmd:cmd, timeout:60);

if(!version || "not found" >< version || "@INC" >< version || version !~ "^[0-9.]+$")exit(0); 

if(version_is_less(version: version, test_version: "2.25")) {
  security_message(0);
}  

ssh_close_connection();
exit(0);