Cisco CatOS TCP-ACK Remote DoS (CSCec42751, CSCed45576, CSCed48590)

#
# (C) Tenable Network Security
#


include("compat.inc");

if(description)
{
 script_id(12270);
 script_bugtraq_id(10504);
 script_cve_id("CVE-2004-0551");

 script_version("1.20");

 script_name(english:"Cisco CatOS TCP-ACK Remote DoS (CSCec42751, CSCed45576, CSCed48590)");

 script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch." );
 script_set_attribute(attribute:"description", value:
"The remote switch is vulnerable to various flaws that could allow an
attacker to disable this device remotely by doing a TCP-ACK denial
of service attack.

This vulnerability is documented with the CISCO bugs ID CSCec42751,
CSCed45576 and CSCed48590." );
 script_set_attribute(attribute:"solution", value:
"http://www.nessus.org/u?02497fd0" );
 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:"exploitability_ease", value:"No known exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"false");

 script_set_attribute(attribute:"plugin_publication_date", value: "2004/06/11");
 script_set_attribute(attribute:"vuln_publication_date", value: "2004/06/10");
 script_cvs_date("Date: 2018/06/27 18:42:25");
 script_set_attribute(attribute:"plugin_type", value:"local");
 script_set_attribute(attribute:"cpe", value: "cpe:/o:cisco:ios");
 script_end_attributes();


 summary["english"] = "Uses SNMP to determine if a flaw is present";
 script_summary(english:summary["english"]);

 script_category(ACT_GATHER_INFO);

 script_copyright(english:"This script is (C) 2004-2018 Tenable Network Security, Inc.");

 script_family(english:"CISCO");

 script_dependencie("snmp_sysDesc.nasl",
			 "snmp_cisco_type.nasl");
 script_require_keys("SNMP/community",
			  "SNMP/sysDesc",
			  "CISCO/model");
 exit(0);
}


# The code starts here
ok=0;
os = get_kb_item("SNMP/sysDesc"); if(!os)exit(0);
hardware = get_kb_item("CISCO/model"); if(!hardware)exit(0);




# Check for the required hardware...
#----------------------------------------------------------------
# catalyst.*
if(ereg(string:hardware, pattern:"^catalyst.*$"))ok=1;

if(!ok)exit(0);
ok = 0;


# Check for the required operating system...
#----------------------------------------------------------------
# Is this CatOS ?
if(!egrep(pattern:".*Cisco Catalyst Operating System.*", string:os))exit(0);
# 8.3
if(egrep(string:os, pattern:"(8\.3\([0-1]\)|8\.3),"))ok=1;

# 8.2
if(egrep(string:os, pattern:"(8\.2\([0-1]\)|8\.2),"))ok=1;

# 8.1
if(egrep(string:os, pattern:"(8\.1\([0-9]*\)|8\.1),"))ok=1;

# 8.0
if(egrep(string:os, pattern:"(8\.0\([0-9]*\)|8\.0),"))ok=1;

# 7.6
if(egrep(string:os, pattern:"(7\.6\([0-5]\)|7\.6),"))ok=1;

# 7.5
if(egrep(string:os, pattern:"(7\.5\([0-9]*\)|7\.5),"))ok=1;

# 7.4
if(egrep(string:os, pattern:"(7\.4\([0-9]*\)|7\.4),"))ok=1;

# 7.3
if(egrep(string:os, pattern:"(7\.3\([0-9]*\)|7\.3),"))ok=1;

# 7.2
if(egrep(string:os, pattern:"(7\.2\([0-9]*\)|7\.2),"))ok=1;

# 7.1
if(egrep(string:os, pattern:"(7\.1\([0-9]*\)|7\.1),"))ok=1;

# 7.0
if(egrep(string:os, pattern:"(7\.0\([0-9]*\)|7\.0),"))ok=1;

# 6.4
if(egrep(string:os, pattern:"(6\.4\([0-8]\)|6\.4),"))ok=1;

# 6.3
if(egrep(string:os, pattern:"(6\.3\([0-9]*\)|6\.3),"))ok=1;

# 6.2
if(egrep(string:os, pattern:"(6\.2\([0-9]*\)|6\.2),"))ok=1;

# 6.1
if(egrep(string:os, pattern:"(6\.1\([0-9]*\)|6\.1),"))ok=1;

# 6.0
if(egrep(string:os, pattern:"(6\.0\([0-9]*\)|6\.0),"))ok=1;

# 5.5
if(egrep(string:os, pattern:"(5\.5\(([0-9]|1[0-9])\)|5\.5),"))ok=1;

# 5.4
if(egrep(string:os, pattern:"(5\.4\([0-9]*\)|5\.4),"))ok=1;

# 5.3
if(egrep(string:os, pattern:"(5\.3\([0-9]*\)|5\.3),"))ok=1;

# 5.2
if(egrep(string:os, pattern:"(5\.2\([0-9]*\)|5\.2),"))ok=1;

# 5.1
if(egrep(string:os, pattern:"(5\.1\([0-9]*\)|5\.1),"))ok=1;

# 5.0
if(egrep(string:os, pattern:"(5\.0\([0-9]*\)|5\.0),"))ok=1;

# Older than that
if(egrep(string:os, pattern:"([1-4]\.0\([0-9]*\)|[1-4]\.0),"))ok=1;


#----------------------------------------------

if(ok)security_warning(port:161, proto:"udp");