2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
5.5 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
12.6%
Avast Premier is prone to a security bypass 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("1.3.6.1.4.1.25623.1.0.810205");
script_version("2023-07-20T05:05:17+0000");
script_cve_id("CVE-2016-4025");
script_tag(name:"cvss_base", value:"2.1");
script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:P/A:N");
script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2016-11-04 19:03:00 +0000 (Fri, 04 Nov 2016)");
script_tag(name:"creation_date", value:"2016-11-18 14:57:52 +0530 (Fri, 18 Nov 2016)");
script_name("Avast Premier Sandbox Escape Security Bypass Vulnerability");
script_tag(name:"summary", value:"Avast Premier is prone to a security bypass 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 due to a design flaw in the
Avast DeepScreen feature.");
script_tag(name:"impact", value:"Successful exploitation will allow attacker
to escape from a fully sandboxed process, furthermore attacker can also freely
modify or infect or encrypt any existing file in the case of a ransomware attack.");
script_tag(name:"affected", value:"Avast Premier version 11.x through 11.1.2262");
script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
release, disable respective features, remove the product or replace the product by another one.");
script_tag(name:"solution_type", value:"WillNotFix");
script_tag(name:"qod_type", value:"registry");
script_xref(name:"URL", value:"https://labs.nettitude.com/blog/escaping-avast-sandbox-using-single-ioctl-cve-2016-4025");
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(avastVer =~ "^11")
{
if(version_in_range(version:avastVer, test_version:"11.0", test_version2:"11.1.2262"))
{
report = report_fixed_ver(installed_version:avastVer, fixed_version:"WillNotFix");
security_message(data:report);
exit(0);
}
}
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:P/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
5.5 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
12.6%