Vulnerabilities > CVE-2016-4683 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple mac OS X

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
apple
CWE-119
nessus

Summary

An issue was discovered in certain Apple products. macOS before 10.12.1 is affected. The issue involves the "ImageIO" component. It allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds memory access and application crash) via a crafted SGI file.

Vulnerable Configurations

Part Description Count
OS
Apple
101

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyMacOS X Local Security Checks
NASL idMACOSX_SECUPD_10_11_6_2016-002__10_10_5_2016-006.NASL
descriptionThe remote host is running a version of Mac OS X that is 10.10.5 but is missing Security Update 2016-006, or else it is version 10.11.6 but is missing Security Update 2016-002. It is, therefore, affected by multiple vulnerabilities : - A memory corruption issue exists in the AppleGraphicsControl component due to improper lock state checking. A local attacker can exploit this, via a specially crafted application, to execute arbitrary code with kernel-level privileges. (CVE-2016-4662) - A memory corruption issue exists in the NVIDIA Graphics Driver due to improper validation of user-supplied input. A local attacker can exploit this to cause a denial of service condition. (CVE-2016-4663) - Multiple flaws exist in the System Boot component due to improper validation of user-supplied input. A local attacker can exploit these to terminate the system or execute arbitrary code with kernel-level privileges. (CVE-2016-4669) - An out-of-bounds write error exists in the ImageIO component when parsing PDF files due to improper bounds checking. An unauthenticated, remote attacker can exploit this, by convincing a user to open a specially crafted PDF file, to execute arbitrary code. (CVE-2016-4671) - A memory corruption issue exists in the Core Image component when handling JPEG files 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 execute arbitrary code. (CVE-2016-4681) - An out-of-bounds read error exists in the ImageIO component when parsing specially crafted SGI images. An unauthenticated, remote attacker can exploit this to disclose potentially sensitive information in process memory. (CVE-2016-4682) - Multiple out-of-bounds read and write errors exist in the ImageIO component when parsing specially crafted SGI images. An unauthenticated, remote attacker can exploit these to disclose potentially sensitive information, cause a denial of service condition, or execute arbitrary code. (CVE-2016-4683)
last seen2020-06-01
modified2020-06-02
plugin id100427
published2017-05-26
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/100427
titleMac OS X 10.10.5 / 10.11.6 Multiple Vulnerabilities (Security Update 2016-002 / 2016-006)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100427);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id(
    "CVE-2016-4662",
    "CVE-2016-4663",
    "CVE-2016-4669",
    "CVE-2016-4671",
    "CVE-2016-4681",
    "CVE-2016-4682",
    "CVE-2016-4683"
  );
  script_bugtraq_id(93849, 93852, 94431);
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-10-24-2");

  script_name(english:"Mac OS X 10.10.5 / 10.11.6 Multiple Vulnerabilities (Security Update 2016-002 / 2016-006)");
  script_summary(english:"Checks for the presence of Security Update 2016-002 and 2016-006.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a Mac OS X update that fixes multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of Mac OS X that is 10.10.5 but
is missing Security Update 2016-006, or else it is version 10.11.6 but
is missing Security Update 2016-002. It is, therefore, affected by
multiple vulnerabilities :

  - A memory corruption issue exists in the
    AppleGraphicsControl component due to improper lock
    state checking. A local attacker can exploit this, via a
    specially crafted application, to execute arbitrary code
    with kernel-level privileges. (CVE-2016-4662)

  - A memory corruption issue exists in the NVIDIA Graphics
    Driver due to improper validation of user-supplied
    input. A local attacker can exploit this to cause a
    denial of service condition. (CVE-2016-4663)

  - Multiple flaws exist in the System Boot component due to
    improper validation of user-supplied input. A local
    attacker can exploit these to terminate the system or
    execute arbitrary code with kernel-level privileges.
    (CVE-2016-4669)

  - An out-of-bounds write error exists in the ImageIO
    component when parsing PDF files due to improper bounds
    checking. An unauthenticated, remote attacker can
    exploit this, by convincing a user to open a specially
    crafted PDF file, to execute arbitrary code.
    (CVE-2016-4671)

  - A memory corruption issue exists in the Core Image
    component when handling JPEG files 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 execute
    arbitrary code. (CVE-2016-4681)

  - An out-of-bounds read error exists in the ImageIO
    component when parsing specially crafted SGI images. An
    unauthenticated, remote attacker can exploit this to
    disclose potentially sensitive information in process
    memory. (CVE-2016-4682)

  - Multiple out-of-bounds read and write errors exist in
    the ImageIO component when parsing specially crafted
    SGI images. An unauthenticated, remote attacker can
    exploit these to disclose potentially sensitive
    information, cause a denial of service condition, or
    execute arbitrary code. (CVE-2016-4683)");
  script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207275");
  # https://lists.apple.com/archives/security-announce/2016/Oct/msg00001.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?34f01fa1");
  script_set_attribute(attribute:"solution", value:
"If running Mac OS X version 10.10.5, install Security Update 2016-006
or later. If running version Mac OS X version 10.11.6, install
Security Update 2016-002 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:L/AC:L/PR:N/UI:R/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-2016-4671");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/10/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/26");

  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, fixed_patch_string)
{
  local_var p_split = split(fixed_patch_string, 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;
}

get_kb_item_or_exit("Host/local_checks_enabled");
os = get_kb_item_or_exit("Host/MacOSX/Version");

if (preg(pattern:"Mac OS X 10\.10\.5($|[^0-9])", string:os))
  fix_patch = "2016-006";
else if (preg(pattern:"Mac OS X 10\.11\.6($|[^0-9])", string:os))
  fix_patch = "2016-002";
else
  audit(AUDIT_OS_NOT, "Mac OS X 10.10.5 or Mac OS X 10.11.6");

packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1);
sec_boms_report = pgrep(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 = pregmatch(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]), fixed_patch_string:fix_patch);
  if (patch_found) exit(0, "The host, version " + os + ", has Security Update " + fix_patch + " or later installed and is therefore not affected.");
}

report =  '\n  Operating system version : ' + os +
report += '\n  Missing security update  : ' + fix_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);