CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS
Percentile
99.9%
The remote host has a version of McAfee Firewall Enterprise installed that is affected by a denial of service vulnerability due to an assertion flaw that occurs when handling TKEY queries. A remote attacker can exploit this, via a specially crafted request, to cause a REQUIRE assertion failure and daemon exit, resulting in a denial of service condition.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(85402);
script_version("1.11");
script_cvs_date("Date: 2019/04/09 12:24:43");
script_cve_id("CVE-2015-5477");
script_bugtraq_id(76092);
script_xref(name:"IAVB", value:"2015-B-0099");
script_xref(name:"MCAFEE-SB", value:"SB10126");
script_name(english:"McAfee Firewall Enterprise DoS (SB10126)");
script_summary(english:"Checks the version of MFE.");
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 host has a version of McAfee Firewall Enterprise installed
that is affected by a denial of service vulnerability due to an
assertion flaw that occurs when handling TKEY queries. A remote
attacker can exploit this, via a specially crafted request, to cause a
REQUIRE assertion failure and daemon exit, resulting in a denial of
service condition.");
script_set_attribute(attribute:"see_also", value:"https://kc.mcafee.com/corporate/index?page=content&id=SB10126");
script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch referenced in the vendor security
advisory.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:C/C:N/I:N/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-2015-5477");
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:"vuln_publication_date", value:"2015/08/03");
script_set_attribute(attribute:"patch_publication_date", value:"2015/08/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"x-cpe:/a:mcafee:firewall_enterprise");
script_set_attribute(attribute:"cpe", value:"cpe:/a:isc:bind");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Firewalls");
script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("mcafee_firewall_enterprise_version.nbin");
script_require_keys("Host/McAfeeFE/version", "Host/McAfeeFE/version_display", "Host/McAfeeFE/installed_patches");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("lists.inc");
app_name = "McAfee Firewall Enterprise";
version = get_kb_item_or_exit("Host/McAfeeFE/version");
version_display = get_kb_item_or_exit("Host/McAfeeFE/version_display");
installed_patches = get_kb_item_or_exit("Host/McAfeeFE/installed_patches");
patchmap = make_array(
"^7\." , make_list("70103E76"),
"^8\.3\.[0-1](\.|$)" , make_list("8.3.1E81"),
"^8\.3\.2(\.|$)" , make_list("8.3.2E61")
);
fix_displays = make_array(
"^7\." , "70103E76",
"^8\.3\.[0-1](\.|$)" , "8.3.1 ePatch 81",
"^8\.3\.2(\.|$)" , "8.3.2 ePatch 61"
);
patches = NULL;
fix_display = NULL;
patch_missing = TRUE;
# Find our patch information
foreach vergx (keys(patchmap))
{
if(version =~ vergx)
{
patches = patchmap[vergx];
fix_display = fix_displays[vergx];
break;
}
}
if(isnull(patches) ||
(
installed_patches !~ "(^|,)[\d\.]+?E\d+?($|,)" && collib::contains(compare:function ()
{
return _FCT_ANON_ARGS[1] =~ _FCT_ANON_ARGS[0];
},
list:patches,
item:"(^|,)[\d\.]+?E\d+?($|,)"
)
)
)
audit(AUDIT_INST_VER_NOT_VULN, version_display);
# Check for patches that fix the issue
foreach patch (patches)
{
if(patch >< installed_patches)
{
patch_missing = FALSE;
break;
}
}
if (patch_missing)
{
port = 0;
if (report_verbosity > 0)
{
report =
'\n Installed Version : ' + version_display +
'\n Patched Version : ' + fix_display +
'\n';
security_hole(extra:report, port:port);
}
else security_hole(port);
exit(0);
}
else audit(AUDIT_PATCH_INSTALLED, fix_display, app_name);
Vendor | Product | Version | CPE |
---|---|---|---|
mcafee | firewall_enterprise | x-cpe:/a:mcafee:firewall_enterprise | |
isc | bind | cpe:/a:isc:bind |