Vulnerabilities > CVE-2014-2244 - Cross-site Scripting vulnerability in Mediawiki

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN

Summary

Cross-site scripting (XSS) vulnerability in the formatHTML function in includes/api/ApiFormatBase.php in MediaWiki before 1.19.12, 1.20.x and 1.21.x before 1.21.6, and 1.22.x before 1.22.3 allows remote attackers to inject arbitrary web script or HTML via a crafted string located after http:// in the text parameter to api.php.

Vulnerable Configurations

Part Description Count
Application
Mediawiki
224

Common Attack Pattern Enumeration and Classification (CAPEC)

  • 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.
  • Embedding Scripts in Non-Script Elements
    This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
  • 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.
  • Cross-Site Scripting in Error Pages
    An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2014-3338.NASL
    description - (bug 60771) SECURITY: Disallow uploading SVG files using non-whitelisted namespaces. Also disallow iframe elements. User will get an error including the namespace name if they use a non-whitelisted namespace. - (bug 61346) SECURITY: Make token comparison use constant time. It seems like our token comparison would be vulnerable to timing attacks. This will take constant time. - (bug 61362) SECURITY: API: Don
    last seen2020-03-17
    modified2014-03-11
    plugin id72916
    published2014-03-11
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/72916
    titleFedora 20 : mediawiki-1.21.6-1.fc20 (2014-3338)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory 2014-3338.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(72916);
      script_version("1.5");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");
    
      script_cve_id("CVE-2014-2242", "CVE-2014-2243", "CVE-2014-2244");
      script_bugtraq_id(65883, 65906, 65910);
      script_xref(name:"FEDORA", value:"2014-3338");
    
      script_name(english:"Fedora 20 : mediawiki-1.21.6-1.fc20 (2014-3338)");
      script_summary(english:"Checks rpm output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Fedora host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "  - (bug 60771) SECURITY: Disallow uploading SVG files using
        non-whitelisted namespaces. Also disallow iframe
        elements. User will get an error including the namespace
        name if they use a non-whitelisted namespace.
    
        - (bug 61346) SECURITY: Make token comparison use
          constant time. It seems like our token comparison
          would be vulnerable to timing attacks. This will take
          constant time.
    
        - (bug 61362) SECURITY: API: Don't find links in the
          middle of api.php links.
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Fedora security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=1071135"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=1071136"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=1071139"
      );
      # https://lists.fedoraproject.org/pipermail/package-announce/2014-March/129882.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?b2127436"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected mediawiki package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mediawiki");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2014/03/03");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/03/11");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Fedora Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
    os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! ereg(pattern:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.x", "Fedora " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
    
    flag = 0;
    if (rpm_check(release:"FC20", reference:"mediawiki-1.21.6-1.fc20")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
      else security_warning(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mediawiki");
    }
    
  • NASL familyCGI abuses
    NASL idMEDIAWIKI_1_19_12.NASL
    descriptionAccording to its self-reported version number, the instance of MediaWiki running on the remote host is affected by the following vulnerabilities : - A cross-site scripting (XSS) vulnerability exists in the includes/upload/UploadBase.php script due to improper validation of user-supplied input during the uploading of an SVG namespace. This allows a remote attacker to create a specially crafted request to execute arbitrary script code in a user
    last seen2020-06-01
    modified2020-06-02
    plugin id72878
    published2014-03-07
    reporterThis script is Copyright (C) 2014-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/72878
    titleMediaWiki < 1.19.12 / 1.21.6 / 1.22.3 Multiple Vulnerabilities
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201502-04.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201502-04 (MediaWiki: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in MediaWiki. Please review the CVE identifiers and MediaWiki announcement referenced below for details. Impact : A remote attacker may be able to execute arbitrary code with the privileges of the process, create a Denial of Service condition, obtain sensitive information, bypass security restrictions, and inject arbitrary web script or HTML. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id81227
    published2015-02-09
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/81227
    titleGLSA-201502-04 : MediaWiki: Multiple vulnerabilities
  • NASL familyMandriva Local Security Checks
    NASL idMANDRIVA_MDVSA-2014-057.NASL
    descriptionUpdated mediawiki packages fix multiple vulnerabilities : MediaWiki user Michael M reported that the fix for CVE-2013-4568 allowed insertion of escaped CSS values which could pass the CSS validation checks, resulting in XSS (CVE-2013-6451). Chris from RationalWiki reported that SVG files could be uploaded that include external stylesheets, which could lead to XSS when an XSL was used to include JavaScript (CVE-2013-6452). During internal review, it was discovered that MediaWiki
    last seen2020-06-01
    modified2020-06-02
    plugin id73004
    published2014-03-14
    reporterThis script is Copyright (C) 2014-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/73004
    titleMandriva Linux Security Advisory : mediawiki (MDVSA-2014:057)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2014-3344.NASL
    description - (bug 60771) SECURITY: Disallow uploading SVG files using non-whitelisted namespaces. Also disallow iframe elements. User will get an error including the namespace name if they use a non-whitelisted namespace. - (bug 61346) SECURITY: Make token comparison use constant time. It seems like our token comparison would be vulnerable to timing attacks. This will take constant time. - (bug 61362) SECURITY: API: Don
    last seen2020-03-17
    modified2014-03-11
    plugin id72917
    published2014-03-11
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/72917
    titleFedora 19 : mediawiki-1.21.6-1.fc19 (2014-3344)

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID:65906 CVE ID:CVE-2014-2244 MediaWiki是一款Wiki程序。 MediaWiki中的includes/api/ApiFormatBase.php脚本的'formatHTML'函数存在跨站脚本漏洞。由于程序未能正确处理追加到api.php脚本的链接,远程攻击者可利用该漏洞注入任意Web脚本或HTML。 0 MediaWiki Mediawiki &lt; 2.0.18 MediaWiki Mediawiki &lt;= 1.19.11 MediaWiki Mediawiki 1.20.x MediaWiki Mediawiki 1.21.x(&lt;1.21.6) MediaWiki Mediawiki 1.22.x(&lt;1.22.3 厂商补丁: MediaWiki ----- 用户可参考如下供应商提供的安全公告获得补丁信息: http://lists.wikimedia.org/pipermail/mediawiki-announce/2014-February/000141.html
idSSV:61665
last seen2017-11-19
modified2014-03-06
published2014-03-06
reporterRoot
titleMediaWiki 'formatHTML'函数跨站脚本漏洞