CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
94.2%
malware protection engine is prone to a remote code execution (RCE) vulnerability.
# SPDX-FileCopyrightText: 2017 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
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.811491");
script_version("2024-02-20T05:05:48+0000");
script_cve_id("CVE-2017-8558");
script_tag(name:"cvss_base", value:"9.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_tag(name:"last_modification", value:"2024-02-20 05:05:48 +0000 (Tue, 20 Feb 2024)");
script_tag(name:"severity_vector", value:"CVSS:3.0/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:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
script_tag(name:"creation_date", value:"2017-07-14 13:56:02 +0530 (Fri, 14 Jul 2017)");
script_tag(name:"qod_type", value:"executable_version");
script_name("Microsoft Malware Protection Engine Remote Code Execution Vulnerability (Jul 2017)");
script_tag(name:"summary", value:"malware protection engine is prone to a remote code execution (RCE) 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 as the Microsoft Malware
Protection Engine does not properly scan a specially crafted file leading to
memory corruption.");
script_tag(name:"impact", value:"Successful exploitation will allow an attacker
to execute arbitrary code in the security context of the LocalSystem account and
take control of the system. An attacker could then install programs. View, change,
or delete data, or create new accounts with full user rights.");
script_tag(name:"affected", value:"- Microsoft Windows 7
- Microsoft Windows 8.1
- Microsoft Windows 10 x32
- Microsoft Windows Server 2008 SP2
- Microsoft Windows 10 Version 1511 x32
- Microsoft Windows 10 Version 1607 x32
- Microsoft Windows 10 Version 1703 x32");
script_tag(name:"solution", value:"Microsoft Malware Protection Engine's built-in
mechanism for the automatic detection and deployment of updates will apply the
update within 48 hours of release.");
script_tag(name:"solution_type", value:"VendorFix");
script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/2510781");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/99262");
script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2017 Greenbone AG");
script_family("Windows : Microsoft Bulletins");
script_dependencies("smb_reg_service_pack.nasl");
script_require_ports(139, 445);
script_mandatory_keys("SMB/WindowsVersion");
exit(0);
}
include("smb_nt.inc");
include("secpod_reg.inc");
include("version_func.inc");
if(hotfix_check_sp(win7:2, win2008:3, win8_1:1, win10:1) <= 0){
exit(0);
}
key = "SOFTWARE\Microsoft\Windows Defender";
if(!registry_key_exists(key:key)){
exit(0);
}
def_version = registry_get_sz(key:"SOFTWARE\Microsoft\Windows Defender\Signature Updates",
item:"EngineVersion");
if(!def_version){
exit(0);
}
##First version of the Microsoft Malware Protection Engine with this vulnerability addressed
if(version_is_less(version:def_version, test_version:"1.1.13903.0"))
{
report = 'Installed version : ' + def_version + '\n' +
'Vulnerable range: Less than 1.1.13903.0';
security_message(data:report);
exit(0);
}
exit(0);
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
94.2%