Juniper Junos LLDP Packet Handling Memory Corruption Vulnerability (JSA10830)

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

include("compat.inc");

if (description)
{
  script_id(106387);
  script_version("1.4");
  script_cvs_date("Date: 2018/07/12 19:01:16");

  script_cve_id("CVE-2018-0007");
  script_xref(name:"JSA", value:"JSA10830");

  script_name(english:"Juniper Junos LLDP Packet Handling Memory Corruption Vulnerability (JSA10830)");
  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:
"According to its self-reported version number, the remote Junos device
is affected by a vulnerability that results in a denial of service or
potentially execution of arbitrary code.");
  # https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10830&actp=METADATA
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a46a97e7");
  script_set_attribute(attribute:"solution", value:
"Apply the relevant Junos software release referenced in
Juniper advisory JSA10830.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:"vuln_publication_date", value:"2018/01/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/26");

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

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

  script_copyright(english:"This script is Copyright (C) 2018 Tenable Network Security, Inc.");

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

  exit(0);
}

include("audit.inc");
include("junos_kb_cmd_func.inc");

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

# Affected:
# 12.1X46 versions prior to 12.1X46-D71
# 12.3 versions prior to 12.3R12-S7
# 12.3X48 versions prior to 12.3X48-D55
# 14.1 versions prior to 14.1R8-S5, 14.1R9
# 14.1X53 versions prior to 14.1X53-D46, 14.1X53-D107
# 14.2 versions prior to 14.2R7-S9, 14.2R8
# 15.1 versions prior to 15.1F2-S17, 15.1F5-S8, 15.1F6-S8, 15.1R5-S7, 15.1R7
# 15.1X49 versions prior to 15.1X49-D90
# 15.1X53 versions prior to 15.1X53-D65
# 16.1 versions prior to 16.1R4-S6, 16.1R5
# 16.1X65 versions prior to 16.1X65-D45
# 16.2 versions prior to 16.2R2
# 17.1 versions prior to 17.1R2
fixes = make_array();
fixes['12.1X46'] = '12.1X46-D71';
fixes['12.3'] = '12.3R12-S7';
fixes['12.3X48'] = '12.3X48-D55';
if (ver =~ "^14\.1R8")
  fixes['14.1'] = '14.1R8-S5';
else
  fixes['14.1'] = '14.1R9';
fixes['14.1X53'] = '14.1X53-D46'; # or 14.1X53-D107
if (ver =~ "^14\.2R7")
  fixes['14.2'] = '14.2R7-S9';
else
  fixes['14.2'] = '14.2R8';
if (ver =~ "^15\.1F2")
  fixes['15.1'] = '15.1F2-S17';
else if (ver =~ "^15\.1F5")
  fixes['15.1'] = '15.1F5-S8';
else if (ver =~ "^15\.1F6")
  fixes['15.1'] = '15.1F6-S8';
else if (ver =~ "^15\.1R5")
  fixes['15.1'] = '15.1R5-S7';
else
  fixes['15.1'] = '15.1R7';
fixes['15.1X49'] = '15.1X49-D90';
fixes['15.1X53'] = '15.1X53-D65';
if (ver =~ "^16\.1R4")
  fixes['16.1'] = '16.1R4-S6';
else
  fixes['16.1'] = '16.1R5';
fixes['16.1X65'] = '16.1X65-D45';
fixes['16.2'] = '16.2R2';
fixes['17.1'] = '17.1R2';

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

override = FALSE;

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