Vulnerabilities > CVE-2013-3954 - Improper Input Validation vulnerability in Apple Iphone OS and mac OS X

047910
CVSS 6.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
apple
CWE-20
nessus
NVD
Published: 2013-06-05
Updated: 2013-10-31

Summary

The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.

Vulnerable Configurations

Part Description Count
OS
Apple
112

Common Weakness Enumeration (CWE)

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.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_10_9.NASL
    descriptionThe remote host is running a version of Mac OS X 10.x that is prior to version 10.9. The newer version contains multiple security-related fixes for the following components : - Application Firewall - App Sandbox - Bluetooth - CFNetwork - CFNetwork SSL - Console - CoreGraphics - curl - dyld - IOKitUser - IOSerialFamily - Kernel - Kext Management - LaunchServices - Libc - Mail Accounts - Mail Header Display - Mail Networking - OpenLDAP - perl - Power Management - python - ruby - Security - Security - Authorization - Security - Smart Card Services - Screen Lock - Screen Sharing Server - syslog - USB
    last seen2020-06-01
    modified2020-06-02
    plugin id70561
    published2013-10-23
    reporterThis script is Copyright (C) 2013-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/70561
    titleMac OS X 10.x < 10.9 Multiple Vulnerabilities (BEAST)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(70561);
  script_version("1.11");
  script_cvs_date("Date: 2018/07/14  1:59:36");

  script_cve_id(
    "CVE-2011-2391",
    "CVE-2011-3389",
    "CVE-2011-3427",
    "CVE-2011-4944",
    "CVE-2012-0845",
    "CVE-2012-0876",
    "CVE-2012-1150",
    "CVE-2013-0249",
    "CVE-2013-1667",
    "CVE-2013-1944",
    "CVE-2013-3950",
    "CVE-2013-3954",
    "CVE-2013-4073",
    "CVE-2013-5135",
    "CVE-2013-5138",
    "CVE-2013-5139",
    "CVE-2013-5141",
    "CVE-2013-5142",
    "CVE-2013-5145",
    "CVE-2013-5165",
    "CVE-2013-5166",
    "CVE-2013-5167",
    "CVE-2013-5168",
    "CVE-2013-5169",
    "CVE-2013-5170",
    "CVE-2013-5171",
    "CVE-2013-5172",
    "CVE-2013-5173",
    "CVE-2013-5174",
    "CVE-2013-5175",
    "CVE-2013-5176",
    "CVE-2013-5177",
    "CVE-2013-5178",
    "CVE-2013-5179",
    "CVE-2013-5180",
    "CVE-2013-5181",
    "CVE-2013-5182",
    "CVE-2013-5183",
    "CVE-2013-5184",
    "CVE-2013-5185",
    "CVE-2013-5186",
    "CVE-2013-5187",
    "CVE-2013-5188",
    "CVE-2013-5189",
    "CVE-2013-5190",
    "CVE-2013-5191",
    "CVE-2013-5192",
    "CVE-2013-5229"
  );
  script_bugtraq_id(
    49778,
    51239,
    51996,
    52379,
    52732,
    57842,
    58311,
    59058,
    60437,
    60444,
    60843,
    62520,
    62522,
    62523,
    62529,
    62531,
    62536,
    63284,
    63290,
    63311,
    63312,
    63313,
    63314,
    63316,
    63317,
    63319,
    63320,
    63321,
    63322,
    63329,
    63330,
    63331,
    63332,
    63335,
    63336,
    63339,
    63343,
    63344,
    63345,
    63346,
    63347,
    63348,
    63349,
    63350,
    63351,
    63352,
    63353
  );
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2013-10-22-3");
  script_xref(name:"CERT", value:"864643");

  script_name(english:"Mac OS X 10.x < 10.9 Multiple Vulnerabilities (BEAST)");
  script_summary(english:"Check the version of Mac OS X.");

  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.x that is prior
to version 10.9. The newer version contains multiple security-related
fixes for the following components :

  - Application Firewall
  - App Sandbox
  - Bluetooth
  - CFNetwork
  - CFNetwork SSL
  - Console
  - CoreGraphics
  - curl
  - dyld
  - IOKitUser
  - IOSerialFamily
  - Kernel
  - Kext Management
  - LaunchServices
  - Libc
  - Mail Accounts
  - Mail Header Display
  - Mail Networking
  - OpenLDAP
  - perl
  - Power Management
  - python
  - ruby
  - Security
  - Security - Authorization
  - Security - Smart Card Services
  - Screen Lock
  - Screen Sharing Server
  - syslog
  - USB"
  );
  script_set_attribute(attribute:"see_also", value:"http://support.apple.com/kb/HT6011");
  script_set_attribute(attribute:"see_also", value:"http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html");
  script_set_attribute(attribute:"see_also", value:"https://www.imperialviolet.org/2011/09/23/chromeandbeast.html");
  script_set_attribute(attribute:"see_also", value:"https://www.openssl.org/~bodo/tls-cbc.txt");
  script_set_attribute(attribute:"solution", value:"Upgrade to Mac OS X 10.9 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_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/10/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/23");

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

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

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

  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, "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, "Mac OS X");

match = eregmatch(pattern:"Mac OS X (10\.[0-9.]+)", string:os);
if (!isnull(match))
{
  version = match[1];
  fixed_version = "10.9";

  if (ver_compare(ver:version, fix:fixed_version, strict:FALSE) == -1)
  {
    if (report_verbosity > 0)
    {
      report = '\n  Installed version : ' + version +
               '\n  Fixed version     : ' + fixed_version +
               '\n';
      security_hole(port:0, extra:report);
    }
    else security_hole(0);
    exit(0);
  }
}

exit(0, "The host is not affected as it is running "+os+".");
  • NASL familyMisc.
    NASL idAPPLETV_6_0.NASL
    descriptionAccording to its banner, the remote Apple TV 2nd generation or later device is prior to 6.0. It is, therefore, reportedly affected by multiple vulnerabilities, the most serious issues of which could result in arbitrary code execution.
    last seen2020-06-01
    modified2020-06-02
    plugin id70257
    published2013-10-01
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/70257
    titleApple TV < 6.0 Multiple Vulnerabilities

References