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
AI Score
Confidence
High
EPSS
Percentile
79.6%
The remote Windows host is missing security update 5041851. It is, therefore, affected by multiple vulnerabilities
A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism. (CVE-2022-2601)
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise.
This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the- Middle or compromise the boot server to be able to exploit this vulnerability successfully.
(CVE-2023-40547)
When rendering certain unicode sequences, grub2’s font code doesn’t proper validate if the informed glyph’s width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2’s heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded. (CVE-2022-3775)
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(205454);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/13");
script_cve_id(
"CVE-2022-2601",
"CVE-2022-3775",
"CVE-2023-40547",
"CVE-2024-29995",
"CVE-2024-37968",
"CVE-2024-38063",
"CVE-2024-38107",
"CVE-2024-38114",
"CVE-2024-38115",
"CVE-2024-38116",
"CVE-2024-38117",
"CVE-2024-38118",
"CVE-2024-38120",
"CVE-2024-38121",
"CVE-2024-38122",
"CVE-2024-38125",
"CVE-2024-38127",
"CVE-2024-38128",
"CVE-2024-38130",
"CVE-2024-38131",
"CVE-2024-38140",
"CVE-2024-38141",
"CVE-2024-38144",
"CVE-2024-38145",
"CVE-2024-38146",
"CVE-2024-38151",
"CVE-2024-38152",
"CVE-2024-38153",
"CVE-2024-38154",
"CVE-2024-38180",
"CVE-2024-38193",
"CVE-2024-38196",
"CVE-2024-38198",
"CVE-2024-38199",
"CVE-2024-38214"
);
script_xref(name:"MSKB", value:"5041851");
script_xref(name:"MSFT", value:"MS24-5041851");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2024/09/03");
script_xref(name:"IAVA", value:"2024-A-0487");
script_xref(name:"IAVA", value:"2024-A-0500-S");
script_xref(name:"IAVA", value:"2024-A-0499-S");
script_name(english:"KB5041851: Windows Server 2012 Security Update (August 2024)");
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 5041851. It is, therefore, affected by multiple vulnerabilities
- A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an
overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph,
this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this
vulnerability to circumvent the secure boot mechanism. (CVE-2022-2601)
- A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled
values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP
request, leading to a completely controlled out-of-bounds write primitive and complete system compromise.
This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-
Middle or compromise the boot server to be able to exploit this vulnerability successfully.
(CVE-2023-40547)
- When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed
glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input
which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability
issues. Although complex, arbitrary code execution could not be discarded. (CVE-2022-3775)
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/5041851");
script_set_attribute(attribute:"solution", value:
"Apply Security Update 5041851");
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:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-38199");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/15");
script_set_attribute(attribute:"patch_publication_date", value:"2024/08/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows_server_2012");
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) 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 = 'MS24-08';
kbs = make_list(
'5041851'
);
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(win8:'0') <= 0) 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:'6.2',
sp:0,
rollup_date:'08_2024',
bulletin:bulletin,
rollup_kb_list:[5041851])
)
{
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());
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2601
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3775
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-40547
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-29995
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-37968
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38063
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38107
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38114
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38115
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38116
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38117
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38118
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38120
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38121
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38122
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38125
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38127
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38128
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38130
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38131
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38140
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38141
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38144
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38145
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38146
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38151
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38152
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38153
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38154
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38180
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38193
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38196
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38198
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38199
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38214
support.microsoft.com/help/5041851
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
AI Score
Confidence
High
EPSS
Percentile
79.6%