CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
33.2%
Avast Premier is prone to a heap-based buffer overflow vulnerability.
# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = "cpe:/a:avast:avast_premier";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.808056");
script_version("2023-07-20T05:05:17+0000");
script_cve_id("CVE-2015-8620");
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_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-03-26 20:37:00 +0000 (Fri, 26 Mar 2021)");
script_tag(name:"creation_date", value:"2016-06-03 18:36:35 +0530 (Fri, 03 Jun 2016)");
script_name("Avast Premier Heap-Based Buffer Overflow Vulnerability");
script_tag(name:"summary", value:"Avast Premier is prone to a heap-based buffer overflow vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The flaw exists in avast virtualization
driver (aswSnx.sys) that handles 'Sandbox' and 'DeepScreen' functionality
improperly.");
script_tag(name:"impact", value:"Successful exploitation will allow attacker
to elevate privileges from any account type and execute code as SYSTEM.");
script_tag(name:"affected", value:"Avast Premier version before 11.1.2253.");
script_tag(name:"solution", value:"Upgrade to Avast Premier version
11.1.2253 or later.");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"registry");
script_xref(name:"URL", value:"http://seclists.org/fulldisclosure/2016/Feb/94");
script_copyright("Copyright (C) 2016 Greenbone AG");
script_category(ACT_GATHER_INFO);
script_family("General");
script_dependencies("gb_avast_premier_detect.nasl");
script_mandatory_keys("Avast/Premier/Win/Ver");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if(!avastVer = get_app_version(cpe:CPE)){
exit(0);
}
if(version_is_less(version:avastVer, test_version:"11.1.2253"))
{
report = report_fixed_ver(installed_version:avastVer, fixed_version:"11.1.2253");
security_message(data:report);
exit(0);
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
33.2%