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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.SMB_NT_MS23_JUL_5028223.NASL
HistoryJul 11, 2023 - 12:00 a.m.

KB5028223: Windows Server 2012 R2 Security Update (July 2023)

2023-07-1100:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
127
windows server 2012 r2
security update
remote code execution
information disclosure
elevation of privilege
nessus scanner

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8 High

AI Score

Confidence

High

0.08 Low

EPSS

Percentile

94.3%

The remote Windows host is missing security update 5028223. It is, therefore, affected by multiple vulnerabilities

  • Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability (CVE-2023-35365, CVE-2023-35366, CVE-2023-35367)

  • Windows Netlogon Information Disclosure Vulnerability (CVE-2023-21526)

  • Windows Win32k Elevation of Privilege Vulnerability (CVE-2023-21756)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.

#
# The descriptive text and package checks in this plugin were
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
##

include('compat.inc');

if (description)
{
  script_id(178156);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/17");

  script_cve_id(
    "CVE-2023-21526",
    "CVE-2023-21756",
    "CVE-2023-32033",
    "CVE-2023-32034",
    "CVE-2023-32035",
    "CVE-2023-32038",
    "CVE-2023-32039",
    "CVE-2023-32040",
    "CVE-2023-32042",
    "CVE-2023-32043",
    "CVE-2023-32044",
    "CVE-2023-32045",
    "CVE-2023-32046",
    "CVE-2023-32053",
    "CVE-2023-32055",
    "CVE-2023-32057",
    "CVE-2023-32085",
    "CVE-2023-33154",
    "CVE-2023-33163",
    "CVE-2023-33164",
    "CVE-2023-33166",
    "CVE-2023-33167",
    "CVE-2023-33168",
    "CVE-2023-33169",
    "CVE-2023-33172",
    "CVE-2023-33173",
    "CVE-2023-33174",
    "CVE-2023-35296",
    "CVE-2023-35297",
    "CVE-2023-35299",
    "CVE-2023-35300",
    "CVE-2023-35302",
    "CVE-2023-35303",
    "CVE-2023-35306",
    "CVE-2023-35308",
    "CVE-2023-35309",
    "CVE-2023-35310",
    "CVE-2023-35312",
    "CVE-2023-35314",
    "CVE-2023-35316",
    "CVE-2023-35317",
    "CVE-2023-35318",
    "CVE-2023-35319",
    "CVE-2023-35321",
    "CVE-2023-35322",
    "CVE-2023-35324",
    "CVE-2023-35325",
    "CVE-2023-35328",
    "CVE-2023-35329",
    "CVE-2023-35330",
    "CVE-2023-35331",
    "CVE-2023-35332",
    "CVE-2023-35336",
    "CVE-2023-35338",
    "CVE-2023-35340",
    "CVE-2023-35341",
    "CVE-2023-35342",
    "CVE-2023-35344",
    "CVE-2023-35345",
    "CVE-2023-35346",
    "CVE-2023-35350",
    "CVE-2023-35351",
    "CVE-2023-35352",
    "CVE-2023-35360",
    "CVE-2023-35361",
    "CVE-2023-35365",
    "CVE-2023-35366",
    "CVE-2023-35367",
    "CVE-2023-36874"
  );
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/08/01");
  script_xref(name:"MSKB", value:"5028223");
  script_xref(name:"MSKB", value:"5028228");
  script_xref(name:"MSFT", value:"MS23-5028223");
  script_xref(name:"MSFT", value:"MS23-5028228");
  script_xref(name:"IAVA", value:"2023-A-0347-S");
  script_xref(name:"IAVA", value:"2023-A-0345-S");

  script_name(english:"KB5028223: Windows Server 2012 R2 Security Update (July 2023)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing security update 5028223. It is, therefore, affected by multiple vulnerabilities

  - Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability (CVE-2023-35365,
    CVE-2023-35366, CVE-2023-35367)

  - Windows Netlogon Information Disclosure Vulnerability (CVE-2023-21526)

  - Windows Win32k Elevation of Privilege Vulnerability (CVE-2023-21756)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5028223");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/help/5028228");
  script_set_attribute(attribute:"solution", value:
"Apply Security Update 5028223 or Cumulative Update 5028228");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-35367");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Microsoft Error Reporting Local Privilege Elevation Vulnerability');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/07/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_server_2012:r2");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include('smb_func.inc');
include('smb_hotfixes.inc');
include('smb_hotfixes_fcheck.inc');
include('smb_reg_query.inc');

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

bulletin = 'MS23-07';
kbs = make_list(
  '5028228',
  '5028223'
);

if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);

get_kb_item_or_exit('SMB/Registry/Enumerated');
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);

if (hotfix_check_sp_range(win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);

# Win 8.1 is EOS since Jan 10, 2023 (8.1 Embedded since July 11, 2023)
var productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("8.1" >< productname) audit(AUDIT_OS_SP_NOT_VULN);

share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);

if (
  smb_check_rollup(os:'6.3',
                   sp:0,
                   rollup_date:'07_2023',
                   bulletin:bulletin,
                   rollup_kb_list:[5028228, 5028223])
)
{
  replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
  hotfix_security_hole();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
}
VendorProductVersionCPE
microsoftwindows_server_2012r2cpe:/o:microsoft:windows_server_2012:r2

References

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8 High

AI Score

Confidence

High

0.08 Low

EPSS

Percentile

94.3%