Vulnerabilities > CVE-2019-0067 - Unspecified vulnerability in Juniper Junos 16.1/16.2/17.1

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

include('compat.inc');

if (description)
{
  script_id(133303);
  script_version("1.1");
  script_cvs_date("Date: 2020/01/29");

  script_cve_id(
    "CVE-2019-0047",
    "CVE-2019-0050",
    "CVE-2019-0054",
    "CVE-2019-0055",
    "CVE-2019-0057",
    "CVE-2019-0058",
    "CVE-2019-0059",
    "CVE-2019-0060",
    "CVE-2019-0062",
    "CVE-2019-0063",
    "CVE-2019-0064",
    "CVE-2019-0066",
    "CVE-2019-0067",
    "CVE-2019-0068",
    "CVE-2019-0073",
    "CVE-2019-0075"
  );
  script_xref(name:"IAVA", value:"2019-A-0388");

  script_name(english:"Juniper JSA10970");
  script_summary(english:"Checks the Junos version and build date.");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"The version of tested product installed on the remote host is prior to
tested version. It is, therefore, affected by a vulnerability as
referenced in the JSA10970 advisory. Note that Nessus has not tested
for this issue but has instead relied only on the application's self-
reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/KB16613");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/KB16765");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/KB16446");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/JSA10970");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper
advisory JSA10970");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-0047");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/29");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Junos Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("junos_version.nasl");
  script_require_keys("Host/Juniper/JUNOS/Version", "Host/Juniper/model");

  exit(0);
}

include('audit.inc');
include('junos.inc');
include('misc_func.inc');

ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');
model = get_kb_item_or_exit('Host/Juniper/model');
fixes = make_array();

fixes['12.1X46'] = '12.1X46-D86';
fixes['12.3'] = '12.3R12-S13';
fixes['12.3X48'] = '12.3X48-D80';
fixes['14.1X53'] = '14.1X53-D51';

if (ver =~ "^15\.1F")
fixes['15.1F'] = '15.1F6-S13';
else
  fixes['15.1'] = '15.1R7-S4';

fixes['15.1X49'] = '15.1X49-D171';
fixes['15.1X53'] = '15.1X53-D69';
fixes['16.1'] = '16.1R7-S5';
fixes['16.2'] = '16.2R2-S9';
fixes['17.1'] = '17.1R3';

if (ver =~ "^17\.2R1")
  fixes['17.2'] = '17.2R1-S8';
else if (ver =~ "^17\.2R2")
  fixes['17.2'] = '17.2R2-S7';
else if (ver =~ "^17\.2R3")
  fixes['17.2'] = '17.2R3-S1';

fixes['17.3'] = '17.3R3-S6';

if (ver =~ "^17\.4R1")
  fixes['17.4'] = '17.4R1-S7';
else if (ver =~ "^17\.4R2")
  fixes['17.4'] = '17.4R2-S4';
else
  fixes['17.4'] = '17.4R3';

fixes['18.1'] = '18.1R3-S5';

if (ver =~ "^18\.2R1")
  fixes['18.2'] = '18.2R1-S5';
else if (ver =~ "^18\.2R2")
  fixes['18.2'] = '18.2R2-S3';
else
  fixes['18.2'] = '18.2R3';

if (ver =~ "^18\.3R1")
  fixes['18.3'] = '18.3R1-S3';
else if (ver =~ "^18\.3R2")
  fixes['18.3'] = '18.3R2';
else if (ver =~ "^18\.3R3")
  fixes['18.3'] = '18.3R3';

if (ver =~ "^18\.4R1")
  fixes['18.4'] = '18.4R1-S2';
else
  fixes['18.4'] = '18.4R2';

fix = check_junos(ver:ver, fixes:fixes, exit_on_fail:TRUE);
report = get_report(ver:ver, fix:fix);
security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);

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

include('compat.inc');

if (description)
{
  script_id(130515);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2019/11/06");

  script_cve_id("CVE-2019-0067");
  script_xref(name:"JSA", value:"JSA10966");
  script_xref(name:"IAVA", value:"2019-A-0388");

  script_name(english:"Junos OS: MC-LAG DoS (JSA10966)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the remote Juniper Junos device is affected by a denial of service (DoS)
vulnerability on devices configured with Multi-Chassis Link Aggregation Group (MC-LAG). An unauthenticated, adjacent
attacker can exploit this by continuously sending a specially crafted IPv6 packet to repeatedly crash the system and
cause the device to stop responding.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10966");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in Juniper advisory JSA10966.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-0067");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/06");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Junos Local Security Checks");

  script_dependencies("junos_version.nasl");
  script_require_keys("Host/Juniper/JUNOS/Version");
  exit(0);
}

include('audit.inc');
include('junos.inc');
include('junos_kb_cmd_func.inc');
include('misc_func.inc');

ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');

fixes = make_array();
fixes['16.1R'] = '16.1R6-S2';
fixes['16.2R'] = '16.2R2-S10';
fixes['17.1R'] = '17.1R3';

fix = check_junos(ver:ver, fixes:fixes, exit_on_fail:TRUE);

# If MC-LAG is not enabled, audit out.
# https://www.juniper.net/documentation/en_US/junos/topics/topic-map/mc-lag-redundancy-and-multihoming.html
override = TRUE;
buf = junos_command_kb_item(cmd:'show configuration | display set');
if (buf)
{
  override = FALSE;
  pattern = "^set ae.* aggregated-ether-options mc-ae mc-ae-id";
  if (!junos_check_config(buf:buf, pattern:pattern))
    audit(AUDIT_HOST_NOT, 'vulnerable as MC-LAG is not enabled');
}

junos_report(ver:ver, fix:fix, override:override, severity:SECURITY_WARNING);