Vulnerabilities > CVE-2013-1164 - Unspecified vulnerability in Cisco products

047910
CVSS 7.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
COMPLETE
network
low complexity
cisco
nessus

Summary

Cisco IOS XE 3.4 before 3.4.4S, 3.5, and 3.6 on 1000 series Aggregation Services Routers (ASR) does not properly implement the Cisco Multicast Leaf Recycle Elimination (MLRE) feature, which allows remote attackers to cause a denial of service (card reload) via fragmented IPv6 multicast packets, aka Bug ID CSCtz97563.

Nessus

NASL familyCISCO
NASL idCISCO-SA-20130410-ASR1000-IOSXE.NASL
descriptionCisco IOS XE Software for 1000 Series Aggregation Services Routers (ASR) contains the following denial of service (DoS) vulnerabilities : - Cisco IOS XE Software IPv6 Multicast Traffic Denial of Service Vulnerability (CVE-2013-1164) - Cisco IOS XE Software L2TP Traffic Denial of Service Vulnerability (CVE-2013-1165) - Cisco IOS XE Software SIP Traffic Denial of Service Vulnerability (CVE-2013-1166) - Cisco IOS XE Software Bridge Domain Interface Denial of Service Vulnerability (CVE-2013-1167) - Cisco IOS XE Software MVPNv6 Traffic Denial of Service Vulnerability (CVE-2013-2779) These vulnerabilities are independent of each other, meaning that a release that is affected by one of the vulnerabilities may not be affected by the others. Successful exploitation of any of these vulnerabilities allows an unauthenticated, remote attacker to trigger a reload of the Embedded Services Processors (ESP) card or the Route Processor (RP) card, causing an interruption of services. Repeated exploitation could result in a sustained DoS condition.
last seen2019-10-28
modified2013-07-10
plugin id67218
published2013-07-10
reporterThis script is Copyright (C) 2013-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/67218
titleMultiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers (cisco-sa-20130410-asr1000)
code
#TRUSTED a7cce7a42135a191044d8f7553e58bdb201e8ec2dc0d766049c017673d58abe754b29e3fcc9a264ad0d39444b15c8a1940460a61fb68d3c90bdc2861fe929557c8f405fe16631bc939553f1e6c3402b5eed8ce63e6c510b314812b9746c523b0c1b6c4abe8b0f3c4112f7b6ac4cb25d8b0074172cc551d9467bdd7e0469602195e323dbfa5b9d720bc5324085ba8d957289bbc7c0cdc43f86470d482cf16382e20c79e7865f0a6eb052de9ab0fb830ac6240f32323a8abe6475a2a64a78c5f6125322702b4ca3af191d7c2f5478545e4950afc7fdd941506a0be713c0891f9451821ba4e899587461995bb257338b0d7cb8af7149324b5669d13a24984e0bcd59ac54814496d0952a53795d7fff4946e9f8f8ecf0405668900dbc9f64df364cce39a0dd57704eccfe10925cf12b6a997a42250424e5dd5e2a70b786d2cdb575c7f106e1ce967fd3ee3c4c81b510ff776fbdc61e02806db910403090623bb881c6ce7193e3976863add9c9b6da34ee481036c576422f695631ecf4eb393e1473c4310d644e4846d3897634547428f07cbc7f2ed2f59a1d6545c6a2f87f85644bda7163feca5c6356bb4b7cfcd558b433f68c211b53a13c89a88d198df9e1d4c9bab565e8a1e6b75f789bcace06979b6036ab710fe56cb645ac27cd04ae6f96538dbd9bc62010ab5aa0d2a21c8d8a2fc158ada7debfd6734a0b009d5d54b06fec4
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(67218);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2018/11/15");

  script_cve_id(
    "CVE-2013-1164",
    "CVE-2013-1165",
    "CVE-2013-1166",
    "CVE-2013-1167",
    "CVE-2013-2779"
  );
  script_bugtraq_id(59003, 59007, 59008, 59009, 59040);
  script_xref(name:"CISCO-BUG-ID", value:"CSCtz97563");
  script_xref(name:"CISCO-BUG-ID", value:"CSCub34945");
  script_xref(name:"CISCO-BUG-ID", value:"CSCtz23293");
  script_xref(name:"CISCO-BUG-ID", value:"CSCuc65609");
  script_xref(name:"CISCO-BUG-ID", value:"CSCtt11558");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20130410-asr1000");

  script_name(english:"Multiple Vulnerabilities in Cisco IOS XE Software for 1000 Series Aggregation Services Routers (cisco-sa-20130410-asr1000)");
  script_summary(english:"Checks the IOS version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"Cisco IOS XE Software for 1000 Series Aggregation Services Routers
(ASR) contains the following denial of service (DoS) vulnerabilities :

  - Cisco IOS XE Software IPv6 Multicast Traffic Denial of
    Service Vulnerability (CVE-2013-1164)

  - Cisco IOS XE Software L2TP Traffic Denial of Service
    Vulnerability (CVE-2013-1165)

  - Cisco IOS XE Software SIP Traffic Denial of Service
    Vulnerability (CVE-2013-1166)

  - Cisco IOS XE Software Bridge Domain Interface Denial of
    Service Vulnerability (CVE-2013-1167)

  - Cisco IOS XE Software MVPNv6 Traffic Denial of Service
    Vulnerability (CVE-2013-2779)

These vulnerabilities are independent of each other, meaning that a
release that is affected by one of the vulnerabilities may not be
affected by the others.

Successful exploitation of any of these vulnerabilities allows an
unauthenticated, remote attacker to trigger a reload of the Embedded
Services Processors (ESP) card or the Route Processor (RP) card,
causing an interruption of services.

Repeated exploitation could result in a sustained DoS condition.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-asr1000
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8ee7b008");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant patch referenced in Cisco Security Advisory
cisco-sa-20130410-asr1000.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios_xe");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/04/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/10");

  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"CISCO");

  script_dependencies("cisco_ios_xe_version.nasl");
  script_require_keys("Host/Cisco/IOS-XE/Version");

  exit(0);
}

include("audit.inc");
include("cisco_func.inc");
include("cisco_kb_cmd_func.inc");

flag = 0;
report_extras = "";
override = 0;
model = "";

# check hardware
if (get_kb_item("Host/local_checks_enabled"))
{
  # this advisory only addresses CISCO ASR 1000 series
  buf = cisco_command_kb_item("Host/Cisco/Config/show_platform", "show platform");
  if (buf)
  {
    match = eregmatch(pattern:"Chassis type:\s+ASR([^ ]+)", string:buf);
    if (!isnull(match)) model = match[1];
  }
}
if (model !~ '^10[0-9][0-9]')
  audit(AUDIT_HOST_NOT, 'ASR 1000 Series');

version = get_kb_item_or_exit("Host/Cisco/IOS-XE/Version");

# for each cisco bug id, check version and then individual additional checks
# --------------------------------------------
# Cisco IOS XE Software IPv6 Multicast Traffic Denial of Service Vulnerability
# Cisco IOS XE Software MVPNv6 Traffic Denial of Service Vulnerability

cbi = "CSCtz97563 and CSCub34945";
fixed_ver = "";
temp_flag = 0;
if ((version =~ '^3\\.4[^0-9]') && (cisco_gen_ver_compare(a:version,b:'3.4.5S') == -1)) { fixed_ver = "3.4.5S"; temp_flag++; }
if (version =~ '^3\\.5[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if (version =~ '^3\\.6[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }

if (get_kb_item("Host/local_checks_enabled"))
{
  if (temp_flag)
  {
    temp_flag = 0;
    buf = cisco_command_kb_item("Host/Cisco/Config/show_running_include_ipv6", "show running | include ipv6.(enable|address)");
    if (check_cisco_result(buf))
    {
      if ( (preg(multiline:TRUE, pattern:"ipv6 enable", string:buf)) && (preg(multiline:TRUE, pattern:"ipv6 address", string:buf)) ) { temp_flag = 1; }
	  if (temp_flag)
      {
	    temp_flag = 0;
        buf = cisco_command_kb_item("Host/Cisco/Config/show_inventory", "show inventory");
        if (check_cisco_result(buf))
        {
          if (preg(multiline:TRUE, pattern:"ASR1000-ESP40", string:buf)) { temp_flag = 1; }
          if (preg(multiline:TRUE, pattern:"ASR1000-ESP100", string:buf)) { temp_flag = 1; }
        } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
      }
    } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
  }
}

if (temp_flag)
{
  report +=
    '\n  Cisco bug ID      : ' + cbi +
    '\n  Installed release : ' + ver +
    '\n  Fixed release     : ' + fixed_ver + '\n';
  flag++;
}

# --------------------------------------------
# Cisco IOS XE Software L2TP Traffic Denial of Service Vulnerability

cbi = "CSCtz23293";
fixed_ver = "";
temp_flag = 0;
if (version =~ '^2[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if (version =~ '^3\\.1[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if (version =~ '^3\\.2[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if (version =~ '^3\\.3[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if ((version =~ '^3\\.4[^0-9]') && (cisco_gen_ver_compare(a:version,b:'3.4.5S') == -1)) { fixed_ver = "3.4.5S"; temp_flag++; }
if (version =~ '^3\\.5[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if (version =~ '^3\\.6[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if ((version =~ '^3\\.7[^0-9]') && (cisco_gen_ver_compare(a:version,b:'3.7.1S') == -1)) { fixed_ver = "3.7.1S"; temp_flag++; }

if (get_kb_item("Host/local_checks_enabled"))
{
  if (temp_flag)
  {
    temp_flag = 0;
    buf = cisco_command_kb_item("Host/Cisco/Config/show_running_include_accept-dialin", "show running | include accept-dialin");
    if (check_cisco_result(buf))
    {
      if (preg(multiline:TRUE, pattern:"accept-dialin", string:buf)) { temp_flag = 1; }
      if (temp_flag)
      {
	  	temp_flag = 0;
        buf = cisco_command_kb_item("Host/Cisco/Config/show_running_include_xconnect_l2tpv3", "show running | include xconnect|l2tpv3");
        if (check_cisco_result(buf))
        {
          if ( (preg(multiline:TRUE, pattern:"encapsulation l2tpv3", string:buf)) && (preg(multiline:TRUE, pattern:"xconnect", string:buf)) ) { temp_flag = 1; }
        } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
      }
    } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
  }
}

if (temp_flag)
{
  report +=
    '\n  Cisco bug ID      : ' + cbi +
    '\n  Installed release : ' + ver +
    '\n  Fixed release     : ' + fixed_ver + '\n';
  flag++;
}

# --------------------------------------------
# Cisco IOS XE Software Bridge Domain Interface Denial of Service Vulnerability

cbi = "CSCtt11558";
fixed_ver = "";
temp_flag = 0;
if (version =~ '^3\\.2[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if (version =~ '^3\\.3[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }
if ((version =~ '^3\\.4[^0-9]') && (cisco_gen_ver_compare(a:version,b:'3.4.2S') == -1)) { fixed_ver = "3.4.2S"; temp_flag++; }
if (version =~ '^3\\.5[^0-9]') { fixed_ver = "migrate to an appropriate extended release"; temp_flag++; }

# this check may result in a False Positive condition
# as it would be impossible to create a check that handles
# 100% of configurations, this is a best effort approach
if (get_kb_item("Host/local_checks_enabled"))
{
  if (temp_flag)
  {
    temp_flag = 0;
    buf = cisco_command_kb_item("Host/Cisco/Config/show_running_include_interface", "show running | section interface");
    if (check_cisco_result(buf))
    {
        if (
             (preg(multiline:TRUE, pattern:"interface[^!]*encapsulation untagged", string:buf)) &&
             (preg(multiline:TRUE, pattern:"interface BDI", string:buf)) &&
             (preg(multiline:TRUE, pattern:"rewrite egress", string:buf)) ) { flag = 1; }
        { temp_flag = 1; }
    } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
  }
}

if (temp_flag)
{
  report +=
    '\n  Cisco bug ID      : ' + cbi +
    '\n  Installed release : ' + ver +
    '\n  Fixed release     : ' + fixed_ver + '\n';
  flag++;
}

# --------------------------------------------
# Cisco IOS XE Software SIP Traffic Denial of Service Vulnerability

cbi = "CSCuc65609";
fixed_ver = "";
temp_flag = 0;
if ((version =~ '^3\\.4[^0-9]') && (cisco_gen_ver_compare(a:version,b:'3.4.2S') == -1)) { fixed_ver = "3.4.5S"; temp_flag++; }

if (get_kb_item("Host/local_checks_enabled"))
{
  if (temp_flag)
  {
    temp_flag = 0;
    buf = cisco_command_kb_item("Host/Cisco/Config/show_running-config_include_ipnatvrf", "show running-config  | include ip (nat | .* vrf .*)");
    if (check_cisco_result(buf))
    {
      if (preg(multiline:TRUE, pattern:"\s+ip\s+nat\s+inside", string:buf)) { temp_flag = 1; }
      if (preg(multiline:TRUE, pattern:"\s+ip\s+nat\s+outside", string:buf)) { temp_flag = 1; }
      if (temp_flag)
      {
	    temp_flag = 0;
        buf = cisco_command_kb_item("Host/Cisco/Config/show_running_include_ipnat", "show running | include ip nat");
        if (check_cisco_result(buf))
        {
          if (!preg(multiline:TRUE, pattern:"no ip nat service sip", string:buf)) { temp_flag = 1; }
        } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
      }
    } else if (cisco_needs_enable(buf)) { temp_flag = 1; override = 1; }
  }
}

if (temp_flag)
{
  report +=
    '\n  Cisco bug ID      : ' + cbi +
    '\n  Installed release : ' + ver +
    '\n  Fixed release     : ' + fixed_ver + '\n';
  flag++;
}

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

if (flag)
{
  security_hole(port:0, extra:report + cisco_caveat());
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");