This host is installed with avast! AntiVirus and is prone to Buffer
Overflow vulnerability.
###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_avast_av_aswrdr_bof_vuln.nasl 5055 2017-01-20 14:08:39Z teissa $
#
# avast! 'aswRdr.sys' Buffer Overflow Vulnerability
#
# Authors:
# Nikita MR <[email protected]>
#
# Copyright:
# Copyright (c) 2009 SecPod, http://www.secpod.com
#
# 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_impact = "Successful exploitation could allow remote attackers to cause a Denial of
Service or potentially gain escalated privileges.
Impact Level: System/Application";
tag_affected = "avast! Home and Professional version 4.8.1356 and prior on Windows.";
tag_insight = "The vulnerability is due to an error in 'aswRdr.sys' when processing
IOCTLs. This can be exploited to corrupt kernel memory via a specially crafted
0x80002024 IOCTL.";
tag_solution = "Upgrade to avast! Home and Professional version 4.8.1367 or later
For updates refer to http://www.avast.com/eng/download.html";
tag_summary = "This host is installed with avast! AntiVirus and is prone to Buffer
Overflow vulnerability.";
if(description)
{
script_id(900985);
script_version("$Revision: 5055 $");
script_tag(name:"last_modification", value:"$Date: 2017-01-20 15:08:39 +0100 (Fri, 20 Jan 2017) $");
script_tag(name:"creation_date", value:"2009-11-26 06:39:46 +0100 (Thu, 26 Nov 2009)");
script_tag(name:"cvss_base", value:"7.2");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_cve_id("CVE-2009-4049");
script_bugtraq_id(37031);
script_name("avast! 'aswRdr.sys' Buffer Overflow Vulnerability");
script_xref(name : "URL" , value : "http://secunia.com/advisories/37368/");
script_xref(name : "URL" , value : "http://en.securitylab.ru/nvd/388054.php");
script_xref(name : "URL" , value : "http://www.vupen.com/english/advisories/2009/3266");
script_xref(name : "URL" , value : "http://www.efblog.net/2009/11/avast-aswrdrsys-kernel-pool-corruption.html");
script_category(ACT_GATHER_INFO);
script_tag(name:"qod_type", value:"executable_version");
script_copyright("Copyright (C) 2009 SecPod");
script_family("Buffer overflow");
script_dependencies("gb_avast_av_detect_win.nasl");
script_require_keys("Avast!/AV/Win/Ver");
script_tag(name : "impact" , value : tag_impact);
script_tag(name : "affected" , value : tag_affected);
script_tag(name : "insight" , value : tag_insight);
script_tag(name : "solution" , value : tag_solution);
script_tag(name : "summary" , value : tag_summary);
exit(0);
}
include("smb_nt.inc");
include("version_func.inc");
include("secpod_smb_func.inc");
avastVer = get_kb_item("Avast!/AV/Win/Ver");
if(isnull(avastVer)){
exit(0);
}
# Check for avast! version 4.8.1356 and prior
if(version_is_less_equal(version:avastVer, test_version:"4.8.1356.0"))
{
sysPath = registry_get_sz(key:"SOFTWARE\Microsoft\COM3\Setup",
item:"Install Path");
if(!sysPath){
exit(0);
}
share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:sysPath);
file = ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1", string:sysPath +
"\drivers\aswRdr.sys");
# Get the version of aswRdr.sys
sysVer = GetVer(share:share, file:file);
if((sysVer != NULL) && version_is_equal(version:sysVer,
test_version:"4.8.1356.0")){
security_message(0);
}
}