Vulnerabilities > CVE-2015-8627 - Improper Access Control vulnerability in Mediawiki

047910
CVSS 5.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
LOW
Availability impact
NONE
network
low complexity
mediawiki
CWE-284
nessus

Summary

MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1 do not properly normalize IP addresses containing zero-padded octets, which might allow remote attackers to bypass intended access restrictions by using an IP address that was not supposed to have been allowed.

Vulnerable Configurations

Part Description Count
Application
Mediawiki
290

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Signature Spoofing by Key Theft
    An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.

Nessus

NASL familyFreeBSD Local Security Checks
NASL idFREEBSD_PKG_F36BBD66AA4411E58F5C002590263BF5.NASL
descriptionMediaWiki reports : (T117899) SECURITY: $wgArticlePath can no longer be set to relative paths that do not begin with a slash. This enabled trivial XSS attacks. Configuration values such as
last seen2020-06-01
modified2020-06-02
plugin id87616
published2015-12-29
reporterThis script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/87616
titleFreeBSD : mediawiki -- multiple vulnerabilities (f36bbd66-aa44-11e5-8f5c-002590263bf5)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(87616);
  script_version("2.5");
  script_cvs_date("Date: 2018/11/23 12:49:57");

  script_cve_id("CVE-2015-8622", "CVE-2015-8623", "CVE-2015-8624", "CVE-2015-8625", "CVE-2015-8626", "CVE-2015-8627", "CVE-2015-8628");

  script_name(english:"FreeBSD : mediawiki -- multiple vulnerabilities (f36bbd66-aa44-11e5-8f5c-002590263bf5)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"MediaWiki reports :

(T117899) SECURITY: $wgArticlePath can no longer be set to relative
paths that do not begin with a slash. This enabled trivial XSS
attacks. Configuration values such as 'http://my.wiki.com/wiki/$1' are
fine, as are '/wiki/$1'. A value such as '$1' or 'wiki/$1' is not and
will now throw an error.

(T119309) SECURITY: Use hash_compare() for edit token comparison.

(T118032) SECURITY: Don't allow cURL to interpret POST parameters
starting with '@' as file uploads.

(T115522) SECURITY: Passwords generated by User::randomPassword() can
no longer be shorter than $wgMinimalPasswordLength.

(T97897) SECURITY: Improve IP parsing and trimming. Previous behavior
could result in improper blocks being issued.

(T109724) SECURITY: Special:MyPage, Special:MyTalk,
Special:MyContributions and related pages no longer use HTTP redirects
and are now redirected by MediaWiki."
  );
  # https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-December/000186.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?dddb0671"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://phabricator.wikimedia.org/T117899"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://phabricator.wikimedia.org/T119309"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://phabricator.wikimedia.org/T118032"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://phabricator.wikimedia.org/T115522"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://phabricator.wikimedia.org/T97897"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://phabricator.wikimedia.org/T109724"
  );
  # http://www.openwall.com/lists/oss-security/2015/12/23/7
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.openwall.com/lists/oss-security/2015/12/23/7"
  );
  # https://vuxml.freebsd.org/freebsd/f36bbd66-aa44-11e5-8f5c-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6abfc992"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:mediawiki123");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:mediawiki124");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:mediawiki125");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:mediawiki126");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"mediawiki123<1.23.12")) flag++;
if (pkg_test(save_report:TRUE, pkg:"mediawiki124<1.24.5")) flag++;
if (pkg_test(save_report:TRUE, pkg:"mediawiki125<1.25.4")) flag++;
if (pkg_test(save_report:TRUE, pkg:"mediawiki126<1.26.1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");