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
EPSS
Percentile
99.4%
The remote host contains a version of Microsoft Excel / Excel Viewer / 2007 Microsoft Office system or the Microsoft Office Compatibility Pack that is affected by several buffer overflow and memory corruption vulnerabilities. If an attacker can trick a user on the affected host into opening a specially crafted Excel file, any of these issues could be leveraged to run arbitrary code on the host subject to the userβs privileges.
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(39343);
script_version("1.34");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/06/08");
script_cve_id(
"CVE-2009-0549",
"CVE-2009-0557",
"CVE-2009-0558",
"CVE-2009-0559",
"CVE-2009-0560",
"CVE-2009-0561",
"CVE-2009-1134"
);
script_bugtraq_id(
35215,
35241,
35242,
35243,
35244,
35245,
35246
);
script_xref(name:"MSFT", value:"MS09-021");
script_xref(name:"MSKB", value:"969679");
script_xref(name:"MSKB", value:"969680");
script_xref(name:"MSKB", value:"969681");
script_xref(name:"MSKB", value:"969682");
script_xref(name:"MSKB", value:"969683");
script_xref(name:"MSKB", value:"969685");
script_xref(name:"MSKB", value:"969686");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/06/22");
script_name(english:"MS09-021: Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution (969462)");
script_set_attribute(attribute:"synopsis", value:
"It is possible to execute arbitrary code on the remote Windows host
using Microsoft Excel.");
script_set_attribute(attribute:"description", value:
"The remote host contains a version of Microsoft Excel / Excel Viewer /
2007 Microsoft Office system or the Microsoft Office Compatibility
Pack that is affected by several buffer overflow and memory corruption
vulnerabilities. If an attacker can trick a user on the affected host
into opening a specially crafted Excel file, any of these issues could
be leveraged to run arbitrary code on the host subject to the user's
privileges.");
script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2009/ms09-021");
script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-09-040/");
script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Excel 2000, 2002, 2003,
and 2007, Excel Viewer and Excel Viewer 2003 as well as the 2007
Microsoft Office system and the Microsoft Office Compatibility Pack.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2009-1134");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_cwe_id(94, 189, 399);
script_set_attribute(attribute:"vuln_publication_date", value:"2009/06/09");
script_set_attribute(attribute:"patch_publication_date", value:"2009/06/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2009/06/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:office");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2009-2022 Tenable Network Security, Inc.");
script_dependencies("smb_nt_ms02-031.nasl", "office_installed.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_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("misc_func.inc");
include("audit.inc");
get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
bulletin = 'MS09-021';
kbs = make_list("969679", "969680", "969681", "969682", "969683", "969685", "969686");
if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
info = "";
vuln = 0;
kb = "";
# Excel.
installs = get_kb_list("SMB/Office/Excel/*/ProductPath");
if (!isnull(installs))
{
foreach install (keys(installs))
{
version = install - 'SMB/Office/Excel/' - '/ProductPath';
path = installs[install];
ver = split(version, sep:'.', keep:FALSE);
for (i=0; i<max_index(ver); i++)
ver[i] = int(ver[i]);
# Excel 2007.
if (
ver[0] == 12 && ver[1] == 0 &&
(
ver[2] < 6504 ||
(ver[2] == 6504 && ver[3] < 5001)
)
)
{
office_sp = get_kb_item("SMB/Office/2007/SP");
if (!isnull(office_sp) && (office_sp == 1 || office_sp == 2))
{
vuln++;
kb = "969682";
info =
'\n Product : Excel 2007' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 12.0.6504.5001\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
}
# Excel 2003.
else if (ver[0] == 11 && ver[1] == 0 && ver[2] < 8307)
{
office_sp = get_kb_item("SMB/Office/2003/SP");
if (!isnull(office_sp) && office_sp == 3)
{
vuln++;
kb = "969681";
info =
'\n Product : Excel 2003' +
'\n File : ' + path +
'\n Installed version : ' +version +
'\n Fixed version : 11.0.8307.0\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
}
# Excel 2002.
else if (ver[0] == 10 && ver[1] == 0 && ver[2] < 6854)
{
office_sp = get_kb_item("SMB/Office/XP/SP");
if (!isnull(office_sp) && office_sp == 3)
{
vuln++;
kb = "969680";
info =
'\n Product : Excel 2002' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 10.0.6854.0\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
}
# Excel 2000.
else if (ver[0] == 9 && ver[1] == 0 && ver[2] == 0 && ver[3] < 8979)
{
office_sp = get_kb_item("SMB/Office/2000/SP");
if (!isnull(office_sp) && office_sp == 3)
{
vuln++;
kb = "969683";
info =
'\n Product : Excel 2000' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 9.0.0.8979\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
}
}
}
# Excel Viewer.
installs = get_kb_list("SMB/Office/ExcelViewer/*/ProductPath");
if (!isnull(installs))
{
foreach install (keys(installs))
{
version = install - 'SMB/Office/ExcelViewer/' - '/ProductPath';
path = installs[install];
ver = split(version, sep:'.', keep:FALSE);
for (i=0; i<max_index(ver); i++)
ver[i] = int(ver[i]);
# Excel Viewer.
if (
ver[0] == 12 && ver[1] == 0 &&
(
ver[2] < 6504 ||
(ver[2] == 6504 && ver[3] < 5000)
)
)
{
vuln++;
kb = "969686";
info =
'\n Product : Excel Viewer' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 12.0.6504.5000\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
# Excel Viewer 2003.
else if (ver[0] == 11 && ver[1] == 0 && ver[2] < 8307)
{
vuln++;
kb = "969685";
info =
'\n Product : Excel 2003' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 11.0.8307.0\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
}
}
# 2007 Microsoft Office system and the Microsoft Office Compatibility Pack.
installs = get_kb_list("SMB/Office/ExcelCnv/*/ProductPath");
if (!isnull(installs))
{
foreach install (keys(installs))
{
version = install - 'SMB/Office/ExcelCnv/' - '/ProductPath';
path = installs[install];
ver = split(version, sep:'.', keep:FALSE);
for (i=0; i<max_index(ver); i++)
ver[i] = int(ver[i]);
# 2007 Office system and the Office Compatibility Pack.
if (
ver[0] == 12 && ver[1] == 0 &&
(
ver[2] < 6504 ||
(ver[2] == 6504 && ver[3] < 5001)
)
)
{
vuln++;
kb = "969679";
info =
'\n Product : 2007 Office system and the Office Compatibility Pack' +
'\n File : ' + path +
'\n Installed version : ' + version +
'\n Fixed version : 12.0.6504.5001\n';
hotfix_add_report(info, bulletin:bulletin, kb:kb);
}
}
}
if (vuln)
{
set_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
hotfix_security_hole();
exit(0);
}
else audit(AUDIT_HOST_NOT, 'affected');
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0549
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0557
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0558
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0559
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0560
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0561
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1134
docs.microsoft.com/en-us/security-updates/SecurityBulletins/2009/ms09-021
www.zerodayinitiative.com/advisories/ZDI-09-040/
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
EPSS
Percentile
99.4%