| code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(86830);
script_version("1.8");
script_cvs_date("Date: 2019/11/20");
script_cve_id("CVE-2015-6111");
script_bugtraq_id(77481);
script_xref(name:"MSFT", value:"MS15-120");
script_xref(name:"MSKB", value:"3102939");
script_xref(name:"IAVB", value:"2015-B-0133");
script_name(english:"MS15-120: Security Update for IPSec to Address Denial of Service (3102939)");
script_summary(english:"Checks the version of ikeext.dll.");
script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a denial of service vulnerability.");
script_set_attribute(attribute:"description", value:
"The remote Windows host is affected by a denial of service
vulnerability in the Internet Protocol Security (IPSec) service due to
improper handling of encryption negotiation. An authenticated, remote
attacker can exploit this, via a malicious application, to cause the
host to become unresponsive.");
script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-120");
script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows 8, 2012, 8.1, and
2012 R2");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-6111");
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:"2015/11/10");
script_set_attribute(attribute:"patch_publication_date", value:"2015/11/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/10");
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:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows : Microsoft Bulletins");
script_copyright(english:"This script is Copyright (C) 2015-2019 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_hotfixes_fcheck.inc");
include("smb_hotfixes.inc");
include("smb_func.inc");
include("misc_func.inc");
get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
bulletin = 'MS15-120';
kbs = make_list('3102939');
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(win8:'0', win81:'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 (
# Windows 8.1 / Windows Server 2012 R2
hotfix_is_vulnerable(os:"6.3", sp:0, file:"ikeext.dll", version:"6.3.9600.18086", dir:"\system32", bulletin:bulletin, kb:"3102939") ||
# Windows 8 / Windows Server 2012
hotfix_is_vulnerable(os:"6.2", sp:0, file:"ikeext.dll", version:"6.2.9200.21656", min_version:"6.2.9200.20000", dir:"\system32", bulletin:bulletin, kb:"3102939") ||
hotfix_is_vulnerable(os:"6.2", sp:0, file:"ikeext.dll", version:"6.2.9200.17539", min_version:"6.2.9200.16000", dir:"\system32", bulletin:bulletin, kb:"3102939")
)
{
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');
}
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