5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.533 Medium
EPSS
Percentile
97.6%
The remote Windows host is affected by a vulnerability that could result in a denial of service if a remote attacker sends a specially crafted session request to the Kerberos server.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(62464);
script_version("1.10");
script_cvs_date("Date: 2019/12/04");
script_cve_id("CVE-2012-2551");
script_bugtraq_id(55778);
script_xref(name:"MSFT", value:"MS12-069");
script_xref(name:"IAVB", value:"2012-B-0103");
script_xref(name:"MSKB", value:"2743555");
script_name(english:"MS12-069: Vulnerability in Kerberos Could Allow Denial of Service (2743555)");
script_summary(english:"Checks version of kerberos.dll");
script_set_attribute(attribute:"synopsis", value:
"The remote implementation of Kerberos is affected by a denial of
service vulnerability.");
script_set_attribute(attribute:"description", value:
"The remote Windows host is affected by a vulnerability that could
result in a denial of service if a remote attacker sends a specially
crafted session request to the Kerberos server.");
script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2012/ms12-069");
script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 7 and 2008 R2.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-2551");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/09");
script_set_attribute(attribute:"patch_publication_date", value:"2012/10/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/10/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
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) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("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("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");
get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
bulletin = 'MS12-069';
kb = '2743555';
kbs = make_list(kb);
if (get_kb_item('Host/patch_management_checks'))
hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_WARNING);
get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);
if (hotfix_check_sp_range(win7:'0,1') <= 0)
audit(AUDIT_OS_SP_NOT_VULN);
rootfile = hotfix_get_systemroot();
if (!rootfile) exit(1, "Failed to get the system root.");
share = hotfix_path2share(path:rootfile);
if (!is_accessible_share(share:share))
audit(AUDIT_SHARE_FAIL, share);
if (
# Windows 7 / 2008 R2
hotfix_is_vulnerable(os:"6.1", sp:1, file:"kerberos.dll", version:"6.1.7601.22084", min_version:"6.1.7601.21000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.1", sp:1, file:"kerberos.dll", version:"6.1.7601.17926", min_version:"6.1.7601.17000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.1", sp:0, file:"kerberos.dll", version:"6.1.7600.21298", min_version:"6.1.7600.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.1", sp:0, file:"kerberos.dll", version:"6.1.7600.17095", min_version:"6.1.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb)
)
{
set_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
hotfix_security_warning();
hotfix_check_fversion_end();
exit(0);
}
else
{
hotfix_check_fversion_end();
audit(AUDIT_HOST_NOT, 'affected');
}