7.8 High
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
7.8 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
20.6%
This host is missing an important security
update according to Microsoft KB4019149.
# 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("1.3.6.1.4.1.25623.1.0.811029");
script_version("2023-07-25T05:05:58+0000");
script_cve_id("CVE-2017-0077");
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:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
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:"2017-05-10 10:56:24 +0530 (Wed, 10 May 2017)");
script_name("Microsoft Windows 'Dxgkrnl.sys' Elevation of Privilege Vulnerability (KB4019149)");
script_tag(name:"summary", value:"This host is missing an important security
update according to Microsoft KB4019149.");
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 error in the way
Microsoft DirectX graphics kernel subsystem (dxgkrnl.sys) handles certain calls
and escapes to preclude improper memory mapping and prevent unintended elevation
from user-mode.");
script_tag(name:"impact", value:"Successful exploitation will allow an attacker
to take control over the affected system and run processes in an elevated context.");
script_tag(name:"affected", value:"Microsoft Windows Server 2008 x32/x64 Edition Service Pack 2 and prior.");
script_tag(name:"solution", value:"The vendor has released updates. Please see the references for more information.");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"executable_version");
script_xref(name:"URL", value:"https://support.microsoft.com/en-us/help/4019149");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/98114");
script_xref(name:"URL", value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0077");
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");
include("secpod_smb_func.inc");
if(hotfix_check_sp(win2008:3, win2008x64:3) <= 0){
exit(0);
}
sysPath = smb_get_system32root();
if(!sysPath ){
exit(0);
}
winVer = fetch_file_version(sysPath:sysPath, file_name:"Dxgkrnl.sys");
if(!winVer){
exit(0);
}
if(version_is_less(version:winVer, test_version:"7.0.6002.19765"))
{
Vulnerable_range = "Less than 7.0.6002.19765";
VULN = TRUE ;
}
else if(version_in_range(version:winVer, test_version:"6.0.6002.23000", test_version2:"7.0.6002.24088"))
{
Vulnerable_range = "6.0.6002.23000 - 7.0.6002.24088";
VULN = TRUE ;
}
if(VULN)
{
report = 'File checked: ' + sysPath + "\Dxgkrnl.sys" + '\n' +
'File version: ' + winVer + '\n' +
'Vulnerable range: ' + Vulnerable_range + '\n' ;
security_message(data:report);
exit(0);
}
exit(0);
7.8 High
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
7.8 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access 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
0.001 Low
EPSS
Percentile
20.6%