Vulnerabilities > CVE-2017-2477 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple mac OS X

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

include("compat.inc");

if (description)
{
  script_id(99134);
  script_version("1.9");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id(
    "CVE-2016-0736",
    "CVE-2016-2161",
    "CVE-2016-3619",
    "CVE-2016-4688",
    "CVE-2016-5387",
    "CVE-2016-5636",
    "CVE-2016-7056",
    "CVE-2016-7585",
    "CVE-2016-7922",
    "CVE-2016-7923",
    "CVE-2016-7924",
    "CVE-2016-7925",
    "CVE-2016-7926",
    "CVE-2016-7927",
    "CVE-2016-7928",
    "CVE-2016-7929",
    "CVE-2016-7930",
    "CVE-2016-7931",
    "CVE-2016-7932",
    "CVE-2016-7933",
    "CVE-2016-7934",
    "CVE-2016-7935",
    "CVE-2016-7936",
    "CVE-2016-7937",
    "CVE-2016-7938",
    "CVE-2016-7939",
    "CVE-2016-7940",
    "CVE-2016-7973",
    "CVE-2016-7974",
    "CVE-2016-7975",
    "CVE-2016-7983",
    "CVE-2016-7984",
    "CVE-2016-7985",
    "CVE-2016-7986",
    "CVE-2016-7992",
    "CVE-2016-7993",
    "CVE-2016-8574",
    "CVE-2016-8575",
    "CVE-2016-8740",
    "CVE-2016-8743",
    "CVE-2016-9533",
    "CVE-2016-9535",
    "CVE-2016-9536",
    "CVE-2016-9537",
    "CVE-2016-9538",
    "CVE-2016-9539",
    "CVE-2016-9540",
    "CVE-2016-9586",
    "CVE-2016-9935",
    "CVE-2016-10009",
    "CVE-2016-10010",
    "CVE-2016-10011",
    "CVE-2016-10012",
    "CVE-2016-10158",
    "CVE-2016-10159",
    "CVE-2016-10160",
    "CVE-2016-10161",
    "CVE-2017-2379",
    "CVE-2017-2381",
    "CVE-2017-2388",
    "CVE-2017-2390",
    "CVE-2017-2398",
    "CVE-2017-2401",
    "CVE-2017-2402",
    "CVE-2017-2403",
    "CVE-2017-2406",
    "CVE-2017-2407",
    "CVE-2017-2408",
    "CVE-2017-2409",
    "CVE-2017-2410",
    "CVE-2017-2413",
    "CVE-2017-2416",
    "CVE-2017-2417",
    "CVE-2017-2418",
    "CVE-2017-2420",
    "CVE-2017-2421",
    "CVE-2017-2422",
    "CVE-2017-2423",
    "CVE-2017-2425",
    "CVE-2017-2426",
    "CVE-2017-2427",
    "CVE-2017-2428",
    "CVE-2017-2429",
    "CVE-2017-2430",
    "CVE-2017-2431",
    "CVE-2017-2432",
    "CVE-2017-2435",
    "CVE-2017-2436",
    "CVE-2017-2437",
    "CVE-2017-2438",
    "CVE-2017-2439",
    "CVE-2017-2440",
    "CVE-2017-2441",
    "CVE-2017-2443",
    "CVE-2017-2448",
    "CVE-2017-2449",
    "CVE-2017-2450",
    "CVE-2017-2451",
    "CVE-2017-2456",
    "CVE-2017-2458",
    "CVE-2017-2461",
    "CVE-2017-2462",
    "CVE-2017-2467",
    "CVE-2017-2472",
    "CVE-2017-2473",
    "CVE-2017-2474",
    "CVE-2017-2477",
    "CVE-2017-2478",
    "CVE-2017-2482",
    "CVE-2017-2483",
    "CVE-2017-2485",
    "CVE-2017-2487",
    "CVE-2017-2489",
    "CVE-2017-2490",
    "CVE-2017-5029",
    "CVE-2017-5202",
    "CVE-2017-5203",
    "CVE-2017-5204",
    "CVE-2017-5205",
    "CVE-2017-5341",
    "CVE-2017-5342",
    "CVE-2017-5482",
    "CVE-2017-5483",
    "CVE-2017-5484",
    "CVE-2017-5485",
    "CVE-2017-5486",
    "CVE-2017-6974",
    "CVE-2017-7070"
  );
  script_bugtraq_id(
    85919,
    91247,
    91816,
    94572,
    94650,
    94742,
    94744,
    94745,
    94746,
    94747,
    94753,
    94754,
    94846,
    94968,
    94972,
    94975,
    94977,
    95019,
    95076,
    95077,
    95078,
    95375,
    95764,
    95768,
    95774,
    95783,
    95852,
    96767,
    97132,
    97134,
    97137,
    97140,
    97146,
    97147,
    97300,
    97301,
    97303
  );
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2017-03-27-3");
  script_xref(name:"CERT", value:"797896");
  script_xref(name:"EDB-ID", value:"40961");
  script_xref(name:"EDB-ID", value:"40962");

  script_name(english:"macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)");
  script_summary(english:"Checks the version of macOS.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a macOS update that fixes multiple security
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of macOS that is 10.12.x prior to
10.12.4. It is, therefore, affected by multiple vulnerabilities in
multiple components, some of which are remote code execution
vulnerabilities. An unauthenticated, remote attacker can exploit these
remote code execution vulnerabilities by convincing a user to visit a
specially crafted website, resulting in the execution of arbitrary
code in the context of the current user. The affected components are
as follows :

  - apache
  - apache_mod_php
  - AppleGraphicsPowerManagement
  - AppleRAID
  - Audio
  - Bluetooth
  - Carbon
  - CoreGraphics
  - CoreMedia
  - CoreText
  - curl
  - EFI
  - FinderKit
  - FontParser
  - HTTPProtocol
  - Hypervisor
  - iBooks
  - ImageIO
  - Intel Graphics Driver
  - IOATAFamily
  - IOFireWireAVC
  - IOFireWireFamily
  - Kernel
  - Keyboards
  - libarchive
  - libc++abi
  - LibreSSL
  - MCX Client
  - Menus
  - Multi-Touch
  - OpenSSH
  - OpenSSL
  - Printing
  - python
  - QuickTime
  - Security
  - SecurityFoundation
  - sudo
  - System Integrity Protection
  - tcpdump
  - tiffutil
  - WebKit");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207615");
  # https://lists.apple.com/archives/security-announce/2017/Mar/msg00004.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ddb4db4a");
  script_set_attribute(attribute:"see_also", value:"https://httpoxy.org");
  script_set_attribute(attribute:"solution", value:
"Upgrade to macOS version 10.12.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-5636");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/01/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/31");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl");
  script_require_ports("Host/MacOSX/Version", "Host/OS");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

os = get_kb_item("Host/MacOSX/Version");
if (!os)
{
  os = get_kb_item_or_exit("Host/OS");
  if ("Mac OS X" >!< os) audit(AUDIT_OS_NOT, "macOS / Mac OS X");

  c = get_kb_item("Host/OS/Confidence");
  if (c <= 70) exit(1, "Can't determine the host's OS with sufficient confidence.");
}
if (!os) audit(AUDIT_OS_NOT, "macOS / Mac OS X");

matches = eregmatch(pattern:"Mac OS X ([0-9]+(\.[0-9]+)+)", string:os);
if (isnull(matches)) exit(1, "Failed to parse the macOS / Mac OS X version ('" + os + "').");

version = matches[1];
if (version !~ "^10\.12($|[^0-9])") audit(AUDIT_OS_NOT, "Mac OS 10.12.x");

fixed_version = "10.12.4";
if (ver_compare(ver:version, fix:fixed_version, strict:FALSE) == -1)
{
  security_report_v4(
    port:0,
    severity:SECURITY_HOLE,
    xss:TRUE,
    extra:
      '\n  Installed version : ' + version +
      '\n  Fixed version     : ' + fixed_version +
      '\n'
  );
}
else audit(AUDIT_INST_VER_NOT_VULN, "macOS / Mac OS X", version);

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

include("compat.inc");

if (description)
{
  script_id(99135);
  script_version("1.7");
  script_cvs_date("Date: 2019/06/19 15:17:43");

  script_cve_id(
    "CVE-2016-4688",
    "CVE-2016-7056",
    "CVE-2017-2432",
    "CVE-2017-2477",
    "CVE-2017-5029"
  );
  script_bugtraq_id(
    94572,
    95375,
    96767,
    97137,
    97303
  );
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2017-03-27-3");

  script_name(english:"Mac OS X Multiple Vulnerabilities (Security Update 2017-001");
  script_summary(english:"Checks for the presence of Security Update 2017-001.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a Mac OS X update that fixes multiple
security vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of Mac OS X 10.10.5 or 10.11.6
that is missing a security update. It is therefore, affected by
multiple vulnerabilities :

  - An information disclosure vulnerability exists in the
    LibreSSL component due to a flaw in the ECDSA
    implementation that is triggered when not properly
    setting a flag in ECDSA signing nonces to indicate that
    only constant-time code paths should be followed. An
    unauthenticated, remote attacker can exploit this to
    conduct side-channel cache-timing attacks, allowing the
    attacker to recover the  modular inversion state
    sequences and the ECDSA private keys. Note that this
    vulnerability does not affect Mac OS X 10.10.5.
    (CVE-2016-7056)

  - An integer overflow condition exists in the ImageIO
    component due to improper validation of user-supplied
    input. An unauthenticated, remote attacker can exploit
    this, by convincing a user to open a specially crafted
    JPEG file, to cause a denial of service condition or the
    execution of arbitrary code. (CVE-2017-2432)

  - Multiple memory corruption issues exist in the libxslt
    component that allow an unauthenticated, remote attacker
    to cause a denial of service condition or the execution
    of arbitrary code. (CVE-2017-2477)

  - An integer overflow condition exists in the libxslt
    component in the xsltAddTextString() function in
    transform.c. An unauthenticated, remote attacker can
    exploit this, by convincing a user to open a specially
    crafted file, to cause an out-of-bounds write,
    potentially allowing the execution of arbitrary code.
    (CVE-2017-5029)");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207615");
  # https://lists.apple.com/archives/security-announce/2017/Mar/msg00004.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ddb4db4a");
  script_set_attribute(attribute:"solution", value:
"Install Security Update 2017-001 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/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:"cvss_score_source", value:"CVE-2017-2477");
  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:"2016/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

# Compare 2 patch numbers to determine if patch requirements are satisfied.
# Return true if this patch or a later patch is applied
# Return false otherwise
function check_patch(year, number)
{
  local_var p_split = split(patch, sep:"-");
  local_var p_year  = int( p_split[0]);
  local_var p_num   = int( p_split[1]);

  if (year >  p_year) return TRUE;
  else if (year <  p_year) return FALSE;
  else if (number >=  p_num) return TRUE;
  else return FALSE;
}

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

os = get_kb_item("Host/MacOSX/Version");
if (!os) audit(AUDIT_OS_NOT, "Mac OS X");
if (!ereg(pattern:"Mac OS X 10\.(10\.5|11\.6)([^0-9]|$)", string:os)) audit(AUDIT_OS_NOT, "Mac OS X 10.10.5 or Mac OS X 10.11.6");

if ( "10.10.5" >< os) patch = "2017-001";
else if ( "10.11.6" >< os ) patch = "2017-001";

packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1);
sec_boms_report = egrep(pattern:"^com\.apple\.pkg\.update\.(security\.|os\.SecUpd).*bom$", string:packages);
sec_boms = split(sec_boms_report, sep:'\n');

foreach package (sec_boms)
{
  # Grab patch year and number
  match = eregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package);
  if (empty_or_null(match[1]) || empty_or_null(match[2]))
    continue;

  patch_found = check_patch(year:int(match[1]), number:int(match[2]));
  if (patch_found) exit(0, "The host has Security Update " + patch + " or later installed and is therefore not affected.");
}

report =  '\n  Missing security update : ' + patch;
report += '\n  Installed security BOMs : ';
if (sec_boms_report) report += str_replace(find:'\n', replace:'\n                            ', string:sec_boms_report);
else report += 'n/a';
report += '\n';

security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);