| code | #
# (C) Tenable Network Security, Inc.
#
# Thanks to Nicolas FISCHBACH ([email protected]) for his help
#
# Ref: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20020903-vpn3k-vulnerability
include("compat.inc");
if(description)
{
script_id(11297);
script_version("1.18");
script_cvs_date("Date: 2018/11/15 20:50:20");
script_cve_id("CVE-2002-1103");
script_name(english:"Cisco VPN 3000 Concentrator Malformed ISAKMP Packet Remote DoS (CSCdy38035)");
script_set_attribute(attribute:"synopsis", value:
"The remote VPN concentrator is affected by ISAKMP package processing
vulnerability." );
script_set_attribute(attribute:"description", value:
"According to its banner, the remote VPN concentrator is subject to an
ISAKMP package processing vulnerability. Malformed or a very large
number of ISAKMP packets might cause a reload of the concentrator. The
vulnerability is aggravated if debug is turned on. This vulnerability
is documented as Cisco bug ID CSCdy38035." );
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2702929c" );
script_set_attribute(attribute:"solution", value:
"Apply vendor-supplied patches." );
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_publication_date", value: "2003/03/01");
script_set_attribute(attribute:"vuln_publication_date", value: "2002/09/03");
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) 2003-2018 Tenable Network Security, Inc.");
script_family(english:"CISCO");
script_dependencie("snmp_sysDesc.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);
# Is this a VPN3k concentrator ?
if(!egrep(pattern:".*VPN 3000 Concentrator.*", string:os))exit(0);
# 3.6(Rel)
if(egrep(pattern:".*Version 3\.6\.Rel.*", string:os))ok = 1;
# < 3.5.5
if(egrep(pattern:".*Version 3\.5\.Rel.*", string:os))ok = 1;
if(egrep(pattern:".*Version 3\.5\.[0-4][^0-9].*", string:os))ok = 1;
# 3.1.x
if(egrep(pattern:".*Version 3\.1\..*", string:os))ok = 1;
# 3.0.x
if(egrep(pattern:".*Version 3\.0\..*", string:os))ok = 1;
# 2.x.x
if(egrep(pattern:".*Version 2\..*", string:os))ok = 1;
if(ok)security_warning(port:161, proto:"udp");
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