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
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.3%
This host is missing a critical security
update according to Microsoft Security Updates released for Microsoft Malware
Protection Engine dated 03-04-2018
# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.813117");
script_version("2024-02-20T05:05:48+0000");
script_cve_id("CVE-2018-0986");
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-08-24 17:37:00 +0000 (Mon, 24 Aug 2020)");
script_tag(name:"creation_date", value:"2018-04-04 18:34:03 +0530 (Wed, 04 Apr 2018)");
script_tag(name:"qod_type", value:"executable_version");
script_name("Microsoft Malware Protection Engine on Security Essentials RCE Vulnerability (Apr 2018)");
script_tag(name:"summary", value:"This host is missing a critical security
update according to Microsoft Security Updates released for Microsoft Malware
Protection Engine dated 03-04-2018");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The flaw exists when 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 Security Essentials.");
script_tag(name:"solution", value:"Run the Windows Update to update the malware
protection engine to the latest version available. Typically, no action is
required as the built-in mechanism for the automatic detection and deployment
of updates will apply the update itself.");
script_tag(name:"solution_type", value:"VendorFix");
script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0986");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/103593");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("Windows");
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");
key = "SOFTWARE\Microsoft\Microsoft Antimalware";
if(!registry_key_exists(key:key)){
exit(0);
}
def_version = registry_get_sz(key:"SOFTWARE\Microsoft\Microsoft Antimalware\Signature Updates",
item:"EngineVersion");
if(!def_version){
exit(0);
}
##Last version of the Microsoft Malware Protection Engine affected by this vulnerability Version 1.1.14600.4
##First version of the Microsoft Malware Protection Engine with this vulnerability addressed 1.1.14700.5
if(version_is_less(version:def_version, test_version:"1.1.14700.5"))
{
report = report_fixed_ver(installed_version:def_version, fixed_version: "1.1.14700.5 or higher");
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
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.3%