Vulnerabilities > CVE-2011-3463 - Improper Authentication vulnerability in Apple mac OS X and mac OS X Server

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
apple
CWE-287
nessus

Summary

WebDAV Sharing in Apple Mac OS X 10.7.x before 10.7.3 does not properly perform authentication, which allows local users to gain privileges by leveraging access to (1) the server or (2) a bound directory. Per: http://support.apple.com/kb/HT5130 'This issue does not affect systems prior to OS X Lion.'

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Authentication Abuse
    An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
  • 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.
  • Utilizing REST's Trust in the System Resource to Register Man in the Middle
    This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
  • Man in the Middle Attack
    This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.

Nessus

NASL familyMacOS X Local Security Checks
NASL idMACOSX_10_7_3.NASL
descriptionThe remote host is running a version of Mac OS X 10.7.x that is prior to 10.7.3. The newer version contains multiple security-related fixes for the following components : - Address Book - Apache - ATS - CFNetwork - CoreMedia - CoreText - CoreUI - curl - Data Security - dovecot - filecmds - ImageIO - Internet Sharing - Libinfo - libresolv - libsecurity - OpenGL - PHP - QuickTime - Subversion - Time Machine - WebDAV Sharing - Webmail - X11
last seen2020-06-01
modified2020-06-02
plugin id57797
published2012-02-02
reporterThis script is Copyright (C) 2012-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/57797
titleMac OS X 10.7.x < 10.7.3 Multiple Vulnerabilities (BEAST)
code
#
# (C) Tenable Network Security, Inc.
#


if (!defined_func("bn_random")) exit(0);
if (NASL_LEVEL < 3000) exit(0);    # Avoid problems with large number of xrefs.


include("compat.inc");


if (description)
{
  script_id(57797);
  script_version("1.20");
  script_cvs_date("Date: 2018/07/14  1:59:35");

  script_cve_id(
    "CVE-2011-1148",
    "CVE-2011-1167",
    "CVE-2011-1657",
    "CVE-2011-1752",
    "CVE-2011-1783",
    "CVE-2011-1921",
    "CVE-2011-1938",
    "CVE-2011-2192",
    "CVE-2011-2202",
    "CVE-2011-2483",
    "CVE-2011-2895",
    "CVE-2011-2937",
    "CVE-2011-3182",
    "CVE-2011-3189",
    "CVE-2011-3246",
    "CVE-2011-3248",
    "CVE-2011-3249",
    "CVE-2011-3250",
    "CVE-2011-3256",
    "CVE-2011-3267",
    "CVE-2011-3268",
    "CVE-2011-3328",
    "CVE-2011-3348",
    "CVE-2011-3389",
    "CVE-2011-3422",
    "CVE-2011-3441",
    "CVE-2011-3444",
    "CVE-2011-3446",
    "CVE-2011-3447",
    "CVE-2011-3448",
    "CVE-2011-3449",
    "CVE-2011-3450",
    "CVE-2011-3452",
    "CVE-2011-3453",
    "CVE-2011-3457",
    "CVE-2011-3458",
    "CVE-2011-3459",
    "CVE-2011-3460",
    "CVE-2011-3462",
    "CVE-2011-3463"
  );
  script_bugtraq_id(
    46843,
    46951,
    47950,
    48091,
    48259,
    48434,
    49124,
    49229,
    49241,
    49249,
    49252,
    49376,
    49429,
    49616,
    49744,
    49778,
    50115,
    50155,
    50400,
    50401,
    50404,
    50641,
    51807,
    51808,
    51809,
    51810,
    51811,
    51812,
    51813,
    51814,
    51815,
    51816,
    51817,
    51818,
    51819,
    51832
  );
  script_xref(name:"CERT", value:"403593");
  script_xref(name:"CERT", value:"410281");
  script_xref(name:"CERT", value:"864643");
  script_xref(name:"ZDI", value:"ZDI-12-058");
  script_xref(name:"ZDI", value:"ZDI-12-103");
  script_xref(name:"ZDI", value:"ZDI-12-130");

  script_name(english:"Mac OS X 10.7.x < 10.7.3 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 several
security vulnerabilities."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is running a version of Mac OS X 10.7.x that is prior
to 10.7.3. The newer version contains multiple security-related fixes
for the following components :

  - Address Book
  - Apache
  - ATS
  - CFNetwork
  - CoreMedia
  - CoreText
  - CoreUI
  - curl
  - Data Security
  - dovecot
  - filecmds
  - ImageIO
  - Internet Sharing
  - Libinfo
  - libresolv
  - libsecurity
  - OpenGL
  - PHP
  - QuickTime
  - Subversion
  - Time Machine
  - WebDAV Sharing
  - Webmail
  - X11"
  );
  script_set_attribute(attribute:"see_also", value:"http://www.zerodayinitiative.com/advisories/ZDI-12-058/");
  script_set_attribute(attribute:"see_also", value:"http://www.zerodayinitiative.com/advisories/ZDI-12-103/");
  script_set_attribute(attribute:"see_also", value:"http://www.zerodayinitiative.com/advisories/ZDI-12-130/");
  script_set_attribute(attribute:"see_also", value:"http://seclists.org/fulldisclosure/2012/Aug/59");
  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:"see_also", 
    value:"http://support.apple.com/kb/HT5130"
  );
  script_set_attribute(
    attribute:"see_also", 
    value:"http://lists.apple.com/archives/security-announce/2012/Feb/msg00001.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade to Mac OS X 10.7.3 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_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/03/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/02/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/02/02");

  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) 2012-2018 Tenable Network Security, Inc.");
 
  script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl");

  exit(0);
}

os = get_kb_item("Host/MacOSX/Version");
if (!os)
{
  os = get_kb_item("Host/OS");
  if (isnull(os)) exit(0, "The 'Host/OS' KB item is missing.");
  if ("Mac OS X" >!< os) exit(0, "The host does not appear to be running 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) exit(0, "The host does not appear to be running Mac OS X.");


if (ereg(pattern:"Mac OS X 10\.7($|\.[0-2]([^0-9]|$))", string:os)) security_hole(0);
else exit(0, "The host is not affected as it is running "+os+".");

Seebug

bulletinFamilyexploit
descriptionBugtraq ID: 51816 CVE ID:CVE-2011-3463 Apple Mac OS X是苹果公司发布的操作系统 WebDAV共享用户验证处理存在问题,在服务器上拥有合法账户的用户或其绑定的目录可以系统特权执行任意代码。此问题不影响OS X Lion之前版本 0 Apple Mac Os X Server 10.7.2 Apple Mac Os X Server 10.7.1 Apple Mac Os X Server 10.7 厂商解决方案 Apple Mac Os X Server 10.7.3已经修复此漏洞,建议用户下载使用: http://www.apple.com/macosx/
idSSV:30084
last seen2017-11-19
modified2012-02-06
published2012-02-06
reporterRoot
titleApple Mac OS X本地特权提升漏洞(CVE-2011-3463)