Cisco SSH2 Server/Client Malformed Packet Remote DoS (CSCdz60229, CSCdy87221, CSCdu75477)

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

include("compat.inc");

if(description)
{
 script_id(11383);
 script_version("1.29");
 script_cve_id("CVE-2002-1357", "CVE-2002-1358", "CVE-2002-1359", "CVE-2002-1360");
 script_bugtraq_id(6397, 6405, 6407, 6408, 6410);

 script_name(english:"Cisco SSH2 Server/Client Malformed Packet Remote DoS (CSCdz60229, CSCdy87221, CSCdu75477)");

 script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch." );
 script_set_attribute(attribute:"description", value:
"It is possible to make the remote IOS crash when sending
it malformed SSH packets during the key exchange.

These flaws are documented as CISCO bug ID CSCdz60229, CSCdy87221 and 
CSCdu75477." );
 script_set_attribute(attribute:"solution", value:
"See 
http://www.nessus.org/u?aed52b80" );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
 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:"metasploit_name", value:'PuTTY Buffer Overflow');
 script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
 script_cwe_id(20, 119);

 script_set_attribute(attribute:"plugin_publication_date", value: "2003/03/14");
 script_cvs_date("Date: 2018/06/27 18:42:25");
 script_set_attribute(attribute:"vuln_publication_date", value: "2002/12/16");
 script_set_attribute(attribute:"plugin_type", value:"local");
 script_set_attribute(attribute:"cpe", value: "cpe:/o:cisco:ios");
 script_end_attributes();

 script_summary(english:"Uses SNMP to determine if a flaw is present");
 script_category(ACT_GATHER_INFO);
 script_copyright(english:"This script is (C) 2003-2018 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 operating system...
#----------------------------------------------------------------
# Is this IOS ?
if(!egrep(pattern:".*(Internetwork Operating|IOS).*", string:os))exit(0);
# 12.0S
if(egrep(string:os, pattern:"((12\.0\(([0-9]|[1-1][0-9]|2[0-2])\)|12\.0)S[0-9]*|12\.0\(23\)S[0-1]),"))ok=1;

# 12.0ST
if(egrep(string:os, pattern:"((12\.0\(([0-9]|[1-1][0-9]|2[0-0])\)|12\.0)ST[0-9]*|12\.0\(21\)ST[0-5]),"))ok=1;

# 12.1E
if(egrep(string:os, pattern:"((12\.1\(([0-9]|1[0-3])\)|12\.1)E[0-9]*|12\.1\(14\)E[0-0]),"))ok=1;

# 12.1EA
if(egrep(string:os, pattern:"(12\.1\(([0-9]|1[0-2])\)|12\.1)EA[0-9]*,"))ok=1;

# 12.1T
if(egrep(string:os, pattern:"(12\.1\([0-9]*\)|12\.1)T[0-9]*,"))ok=1;

# 12.2
if(egrep(string:os, pattern:"(12\.2\(([0-9]|1[0-2])\)|12\.2),"))ok=1;

# 12.2S
if(egrep(string:os, pattern:"(12\.2\(([0-9]|1[0-3])\)|12\.2)S[0-9]*,"))ok=1;

# 12.2T
if(egrep(string:os, pattern:"((12\.2\(([0-9]|1[0-2])\)|12\.2)T[0-9]*|12\.2\(13\)T[0-0]),"))ok=1;


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

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