| code | #
# (C) Tenable Network Security, Inc.
#
# Script audit and contributions from Carmichael Security
# Erik Anderson <[email protected]> (nb: domain no longer exists)
# Added BugtraqID and CVE
#
include("compat.inc");
if(description)
{
script_id(10980);
script_version("1.19");
script_cve_id("CVE-2001-0429");
script_bugtraq_id(2604);
script_name(english:"Cisco Catalyst 5000 Series Frame STP Port Broadcast DoS (CSCdt62732)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch." );
script_set_attribute(attribute:"description", value:
"When an 802.1x (IEEE standard for port based network access control)
frame is received by an affected Catalyst 5000 series switch on a STP
(Spanning Tree Protocol) blocked port it is forwarded in that VLAN
(Virtual Local Area Network) instead of being dropped. This causes a
performance impacting 802.1x frames network storm in that part of the
network, which is made up of the affected Catalyst 5000 series
switches. This network storm only subsides when the source of the
802.1x frames is removed or one of the workarounds in the workaround
section is applied.
This vulnerability is documented as Cisco bug ID CSCdt62732." );
script_set_attribute(attribute:"solution", value:
"http://www.nessus.org/u?e0c2952e" );
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: "2002/06/05");
script_cvs_date("Date: 2018/06/27 18:42:25");
script_set_attribute(attribute:"vuln_publication_date", value: "2001/04/16");
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) 2002-2018 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...
#----------------------------------------------------------------
# catalyst5kRsfc
if(ereg(string:hardware, pattern:"^catalyst5kRsfc$"))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);
# 4.5
if(egrep(string:os, pattern:"(4\.5\(([0-9]|1[0-1])\)|4\.5),"))ok=1;
# 5.5
if(egrep(string:os, pattern:"(5\.5\([0-6]\)|5\.5),"))ok=1;
# 6.3
if(egrep(string:os, pattern:"(6\.3\([0-2]\)|6\.3),"))ok=1;
#----------------------------------------------
if(ok)security_warning(port:161, proto:"udp");
|