Vulnerabilities > CVE-2013-4571 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Mediawiki

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
mediawiki
CWE-119
nessus
NVD
Published: 2014-05-12
Updated: 2014-05-12

Summary

Buffer overflow in php-luasandbox in the Scribuntu extension for MediaWiki before 1.19.10, 1.2x before 1.21.4, and 1.22.x before 1.22.1 has unspecified impact and remote vectors.

Vulnerable Configurations

Part Description Count
Application
Mediawiki
209

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.
  • 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 familyCGI abuses
NASL idMEDIAWIKI_1_19_10.NASL
descriptionAccording to its version number, the instance of MediaWiki running on the remote host is affected by the following vulnerabilities : - Escape sequences are not properly sanitized when passed to the
last seen2020-06-01
modified2020-06-02
plugin id72370
published2014-02-06
reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/72370
titleMediaWiki < 1.19.10 / 1.21.4 / 1.22.1 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(72370);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/26");

  script_cve_id(
    "CVE-2013-4570",
    "CVE-2013-4571",
    "CVE-2013-4574",
    "CVE-2013-6451",
    "CVE-2013-6452",
    "CVE-2013-6453",
    "CVE-2013-6454",
    "CVE-2013-6455",
    "CVE-2013-6472",
    "CVE-2014-3454"
  );
  script_bugtraq_id(64966, 65003, 67522);

  script_name(english:"MediaWiki < 1.19.10 / 1.21.4 / 1.22.1 Multiple Vulnerabilities");
  script_summary(english:"Checks version of MediaWiki.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains an application that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its version number, the instance of MediaWiki running on
the remote host is affected by the following vulnerabilities :

  - Escape sequences are not properly sanitized when passed
    to the 'Sanitizer::checkCss' class, which allows a
    remote attacker to conduct cross-site scripting attacks.
    (CVE-2013-6451)

  - An input validation error exists in the
    'XmlTypeCheck.php' script in uploaded SVG files that
    contain external style sheets, which allows a remote
    attacker to conduct cross-site scripting attacks.
    (CVE-2013-6452)

  - Input validation by the checkSvgScriptCallback()
    function is bypassed in the 'UploadBase.php' script
    when an SVG file with invalid XML is uploaded. This
    can result in malicious code execution. (CVE-2013-6453)

  - An input validation error exists in the 'Sanitizer.php'
    script when input is submitted to the '-o-link'
    attribute, which allows cross-site scripting attacks in
    Opera 12. (CVE-2013-6454)

  - An information disclosure vulnerability exists in the
    log API, Enhanced Recent Changes feature, and users'
    watchlists that allows deleted log entries to be viewed.
    (CVE-2013-6472)

Additionally, the following extensions contain vulnerabilities but
are not enabled or installed by default (unless otherwise noted) :

  - The TimedMediaHandler extension is affected by a
    cross-site scripting vulnerability due to the lack of
    input validation of the 'data-videopayload' attribute
    in the 'mw.PopUpThumbVideo.js' script. (CVE-2013-4574)

  - The Scribuntu extension is affected by a NULL pointer
    dereference and buffer overflow flaw in the
    implementation of the 'luasandbox' PHP extension that
    can lead to a denial of service or arbitrary code
    execution. (CVE-2013-4570, CVE-2013-4571)

  - The CentralAuth extension is affected by an information
    disclosure vulnerability due to the insertion of a
    username into the page's DOM. (CVE-2013-6455)

  - The Semantic Forms extension is affected by a cross-site
    request forgery (XSRF) vulnerability due to the lack of
    token validation in the 'Special:CreateCategory' page.
    (CVE-2014-3454)

Note that Nessus has not tested for these issues but has instead
relied on the application's self-reported version number.");
  # https://lists.wikimedia.org/pipermail/mediawiki-announce/2014-January/000138.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?11acd3f1");
  script_set_attribute(attribute:"see_also", value:"https://www.mediawiki.org/wiki/Release_notes/1.19#MediaWiki_1.19.10");
  script_set_attribute(attribute:"see_also", value:"https://www.mediawiki.org/wiki/Release_notes/1.20#MediaWiki_1.21.4");
  script_set_attribute(attribute:"see_also", value:"https://www.mediawiki.org/wiki/Release_notes/1.22#MediaWiki_1.22.1");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MediaWiki version 1.19.10 / 1.21.4 / 1.22.1 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-2013-6453");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/06/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/06");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mediawiki:mediawiki");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mediawiki_detect.nasl");
  script_require_keys("Settings/ParanoidReport", "installed_sw/MediaWiki", "www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

app = "MediaWiki";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:80, php:TRUE);

install = get_single_install(
  app_name : app,
  port     : port,
  exit_if_unknown_ver : TRUE
);
version = install['version'];
install_url = build_url(qs:install['path'], port:port);

if (report_paranoia < 2) audit(AUDIT_PARANOID);

if (
  version =~ "^1\.19\.[0-9]([^0-9]|$)" ||
  version =~ "^1\.21\.[0-3]([^0-9]|$)" ||
  version =~ "^1\.22\.[0]([^0-9]|$)"
)
{
  set_kb_item(name:'www/'+port+'/XSS', value:TRUE);
  set_kb_item(name:'www/'+port+'/XSRF', value:TRUE);

  if (report_verbosity > 0)
  {
    report =
      '\n  URL               : ' + install_url +
      '\n  Installed version : ' + version +
      '\n  Fixed versions    : 1.19.10 / 1.21.4 / 1.22.1' +
      '\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url, version);

References