Cisco SIP Crafted INVITE Message Handling DoS (CSCdz39284, CSCdz41124)

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

include("compat.inc");

if(description)
{
 script_id(11380);
 script_version("1.21");
 script_cve_id("CVE-2003-1109");
 script_bugtraq_id(6904);

 script_name(english:"Cisco SIP Crafted INVITE Message Handling DoS (CSCdz39284, CSCdz41124)");

 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 SIP packets.

These vulnerabilities are documented as CISCO bug id CSCdz39284 and
CSCdz41124." );
 script_set_attribute(attribute:"solution", value:
"See http://www.nessus.org/u?d6cc6d97" );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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: "2003/03/14");
 script_cvs_date("Date: 2018/06/27 18:42:25");
 script_set_attribute(attribute:"vuln_publication_date", value: "2003/02/22");
 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);

# 12.2T
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");