Vulnerabilities > CVE-2013-5136 - Information Exposure vulnerability in Apple Remote Desktop

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
apple
CWE-200
nessus

Summary

Apple Remote Desktop before 3.7 does not properly use server authentication-type information during decisions about whether to present an unencrypted-connection warning message, which allows remote attackers to obtain sensitive information in opportunistic circumstances by sniffing the network during an unintended cleartext VNC session.

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyMacOS X Local Security Checks
NASL idMACOSX_REMOTE_DESKTOP_3_7.NASL
descriptionAccording to its version, the Apple Remote Desktop install on the remote host is earlier than 3.5.4 / 3.7. As such, it is potentially affected the following vulnerabilities : - A format string vulnerability exists in Remote Desktop
last seen2020-06-01
modified2020-06-02
plugin id70609
published2013-10-25
reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/70609
titleApple Remote Desktop < 3.5.4 / 3.7 Multiple Vulnerabilities (Mac OS X)
code
#TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(70609);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/27");

  script_cve_id("CVE-2013-5135", "CVE-2013-5136", "CVE-2013-5229");
  script_bugtraq_id(63284, 63286);
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2013-10-22-6");
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2013-10-22-7");

  script_name(english:"Apple Remote Desktop < 3.5.4 / 3.7 Multiple Vulnerabilities (Mac OS X)");
  script_summary(english:"Reads version from Info.plist");

  script_set_attribute(attribute:"synopsis", value:
"The Mac OS X host has a remote management application that is
potentially affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its version, the Apple Remote Desktop install on the
remote host is earlier than 3.5.4 / 3.7.  As such, it is potentially
affected the following vulnerabilities :

  - A format string vulnerability exists in Remote 
    Desktop's handling of a VNC username. (CVE-2013-5135)

  - An information disclosure vulnerability exists because
    Remote Desktop may use password authentication without
    warning that the connection would be encrypted if a
    third-party VNC server supports certain authentication
    types. Note that this does not affect installs of
    version 3.5.x or earlier. (CVE_2013-5136)

  - An authentication bypass vulnerability exists due to a
    flaw in the full-screen feature that is triggered when
    handling text entered in the dialog box upon recovering 
    from sleep mode with a remote connection alive. A local
    attacker can exploit this to bypass intended access
    restrictions. (CVE-2013-5229)");
  script_set_attribute(attribute:"see_also", value:"http://support.apple.com/kb/HT5997");
  script_set_attribute(attribute:"see_also", value:"http://support.apple.com/kb/HT5998");
  script_set_attribute(attribute:"see_also", value:"http://lists.apple.com/archives/security-announce/2013/Oct/msg00007.html");
  script_set_attribute(attribute:"see_also", value:"http://lists.apple.com/archives/security-announce/2013/Oct/msg00008.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apple Remote Desktop 3.5.4 / 3.7 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_attribute(attribute:"cvss_score_source", value:"CVE-2013-5135");

  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:"2013/10/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/10/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:apple_remote_desktop");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2019 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");

  exit(0);
}


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



if(sshlib::get_support_level() >= sshlib::SSH_LIB_SUPPORTS_COMMANDS)
  enable_ssh_wrappers();
else disable_ssh_wrappers();

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/MacOSX/Version"))audit(AUDIT_HOST_NOT, "running Mac OS X");

plist = '/System/Library/CoreServices/RemoteManagement/AppleVNCServer.bundle/Contents/Info.plist';
cmd =  'plutil -convert xml1 -o - \'' + plist + '\' | ' +
  'grep -A 1 CFBundleShortVersionString | ' +
  'tail -n 1 | ' +
  'sed \'s/.*string>\\(.*\\)<\\/string>.*/\\1/g\'';
version = exec_cmd(cmd:cmd);
if (!strlen(version)) audit(AUDIT_NOT_INST, "Apple Remote Desktop Client");

if (version !~ "^[0-9]") exit(1, "The version does not look valid (" + version + ").");


if (
  ereg(pattern:"^3\.[0-4]($|[^0-9])", string:version) ||
  ereg(pattern:"^3\.5\.[0-3]($|[^0-9])", string:version) ||
  ereg(pattern:"^3\.6(\.[0-9])?($|[^0-9.])", string:version)
)
{
  if (report_verbosity > 0)
  {
    report = 
      '\n  Installed version : ' + version + 
      '\n  Fixed version     : 3.5.4 / 3.7' +
      '\n';
    security_hole(port:0, extra:report);
  }
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_INST_VER_NOT_VULN, "Apple Remote Desktop Client", version);