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
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.8%
This host is missing a critical security
update according to Microsoft Security Updates KB4041086.
# 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("1.3.6.1.4.1.25623.1.0.811829");
script_version("2024-07-25T05:05:41+0000");
script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
script_cve_id("CVE-2017-8759");
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:"2024-07-25 05:05:41 +0000 (Thu, 25 Jul 2024)");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/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:"2024-07-24 17:11:20 +0000 (Wed, 24 Jul 2024)");
script_tag(name:"creation_date", value:"2017-09-14 10:52:54 +0530 (Thu, 14 Sep 2017)");
script_name("Microsoft .NET Framework Remote Code Execution Vulnerability (KB4041086)");
script_tag(name:"summary", value:"This host is missing a critical security
update according to Microsoft Security Updates KB4041086.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Flaw exists as when Microsoft .NET Framework
processes untrusted input.");
script_tag(name:"impact", value:"Successful exploitation will allow remote
attackers to take control of an affected system. An attacker could then install
programs, view, change, or delete data, or create new accounts with full user
rights. Users whose accounts are configured to have fewer user rights on the
system could be less impacted than users who operate with administrative user
rights.");
script_tag(name:"affected", value:"- Microsoft .NET Framework 4.5.2
- Microsoft .NET Framework 4.6");
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/4041086");
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_mandatory_keys("SMB/WindowsVersion");
script_require_ports(139, 445);
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);
}
key = "SOFTWARE\Microsoft\ASP.NET\";
if(!registry_key_exists(key:key)){
exit(0);
}
foreach item (registry_enum_keys(key:key))
{
dotPath = registry_get_sz(key:key + item, item:"Path");
if(dotPath && "\Microsoft.NET\Framework" >< dotPath)
{
sysdllVer = fetch_file_version(sysPath:dotPath, file_name:"system.runtime.remoting.dll");
if(!sysdllVer){
exit(0);
}
## .NET Framework 4.6 for Windows Server 2008 x64-based Systems Service Pack 2
if(hotfix_check_sp(win2008x64:3) > 0 && version_in_range(version:sysdllVer, test_version:"4.6", test_version2:"4.7.2113"))
{
VULN = TRUE ;
vulnerable_range = "4.6 - 4.7.2113";
}
## .NET Framework 4.5.2 for Windows Server 2008 32-bit and x64-based Systems Service Pack 2
else if(version_in_range(version:sysdllVer, test_version:"4.0.30319.30000", test_version2:"4.0.30319.36414"))
{
VULN = TRUE ;
vulnerable_range = "4.0.30319.30000 - 4.0.30319.36414";
}
if(VULN)
{
report = 'File checked: ' + dotPath + "\system.runtime.remoting.dll" + '\n' +
'File version: ' + sysdllVer + '\n' +
'Vulnerable range: ' + vulnerable_range + '\n' ;
security_message(data:report);
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
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.8%