FreeBSD : SA-04:04.tcp

#
# (C) Tenable Network Security, Inc.
#
#

if ( ! defined_func("bn_random") ) exit(0);

include("compat.inc");

if(description)
{
 script_id(12589);
 script_bugtraq_id(9792);
 script_version ("$Revision: 1.13 $");
 script_cve_id("CVE-2004-0171");
 name["english"] = "FreeBSD : SA-04:04.tcp";
 
 script_name(english:name["english"]);
 
 script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch" );
 script_set_attribute(attribute:"description", value:
"The remote host is running a version of the FreeBSD kernel which may be
vulnerable to a remote denial of service attack when processing many
out of sequence TCP packets." );
 script_set_attribute(attribute:"solution", value:
"http://www.vuxml.org/freebsd/e289f7fd-88ac-11d8-90d1-0020ed76ef5a.html" );
 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:F/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");



 script_set_attribute(attribute:"plugin_publication_date", value: "2004/07/06");
 script_cvs_date("$Date: 2011/11/03 18:08:43 $");
 script_end_attributes();

 
 summary["english"] = "Check for the version of the FreeBSD kernel";
 script_summary(english:summary["english"]);
 
 script_category(ACT_GATHER_INFO);
 
 script_copyright(english:"This script is Copyright (C) 2004-2011 Tenable Network Security, Inc.");
 family["english"] = "FreeBSD Local Security Checks";
 script_family(english:family["english"]);
 
 script_dependencies("ssh_get_info.nasl");
 script_require_keys("Host/FreeBSD/pkg_info");
 exit(0);
}



include("freebsd_package.inc");



package = get_kb_item("Host/FreeBSD/release");

if ( egrep(pattern:"FreeBSD-4\.[0-7]([^0-9]|$)", string:package) )
{
 if ( pkg_cmp(pkg:package, reference:"FreeBSD-4.7_26") < 0 )
 {
  security_warning(0);
  exit(0);
 }
}

if ( egrep(pattern:"FreeBSD-4\.8", string:package) )
{
 if ( pkg_cmp(pkg:package, reference:"FreeBSD-4.8_16") < 0 )
 {
  security_warning(0);
  exit(0);
 }
}

if ( egrep(pattern:"FreeBSD-4\.9", string:package) )
{
 if ( pkg_cmp(pkg:package, reference:"FreeBSD-4.9_3") < 0 )
 {
  security_warning(0);
  exit(0);
 }
}

if ( egrep(pattern:"FreeBSD-5\.[01]", string:package) )
{
 if ( pkg_cmp(pkg:package, reference:"FreeBSD-5.1_15") < 0 )
 {
  security_warning(0);
  exit(0);
 }
}

if ( egrep(pattern:"FreeBSD-5\.2", string:package) )
{
 if ( pkg_cmp(pkg:package, reference:"FreeBSD-5.2.1_12") < 0 )
 {
  security_warning(0);
  exit(0);
 }
}