Vulnerabilities > CVE-2015-8564 - Improper Input Validation vulnerability in Joomla Joomla!

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
joomla
CWE-20
nessus

Summary

Directory traversal vulnerability in Joomla! 3.4.x before 3.4.6 allows remote attackers to have unspecified impact via directory traversal sequences in the XML install file in an extension package archive.

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.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • 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.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyCGI abuses
    NASL idJOOMLA_346.NASL
    descriptionAccording to its self-reported version number, the Joomla! installation running on the remote web server is prior to 3.4.6. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists due to improper sanitization of session values. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2015-8562) - A cross-site request forgery (XSRF) vulnerability exists due to HTTP requests to com_templates not requiring multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions. An unauthenticated, remote attacker can exploit this, by convincing a user to follow a specially crafted link, to cause the user to perform unspecified actions. (CVE-2015-8563) - A path traversal vulnerability exists due to improper sanitization of user-supplied input via the XML install file. (CVE-2015-8564) - A path traversal vulnerability exists due to improper sanitization of input supplied via user requests. (CVE-2015-8565) Note that Nessus has not tested for these issues but has instead relied only on the application
    last seen2020-06-01
    modified2020-06-02
    plugin id87416
    published2015-12-16
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87416
    titleJoomla! < 3.4.6 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(87416);
      script_version("1.14");
      script_cvs_date("Date: 2019/11/20");
    
      script_cve_id(
        "CVE-2015-8562",
        "CVE-2015-8563",
        "CVE-2015-8564",
        "CVE-2015-8565"
      );
      script_bugtraq_id(
        79195,
        79199,
        79201,
        79203
      );
      script_xref(name:"EDB-ID", value:"38977");
      script_xref(name:"EDB-ID", value:"39033");
    
      script_name(english:"Joomla! < 3.4.6 Multiple Vulnerabilities");
      script_summary(english:"Checks the version of Joomla!.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote web server contains a PHP application that is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "According to its self-reported version number, the Joomla!
    installation running on the remote web server is prior to 3.4.6. It
    is, therefore, affected by multiple vulnerabilities :
    
      - A remote code execution vulnerability exists due to
        improper sanitization of session values. An
        unauthenticated, remote attacker can exploit this to
        execute arbitrary code. (CVE-2015-8562)
    
      - A cross-site request forgery (XSRF) vulnerability exists
        due to HTTP requests to com_templates not requiring
        multiple steps, explicit confirmation, or a unique token
        when performing certain sensitive actions. An
        unauthenticated, remote attacker can exploit this, by
        convincing a user to follow a specially crafted link, to
        cause the user to perform unspecified actions.
        (CVE-2015-8563)
    
      - A path traversal vulnerability exists due to improper
        sanitization of user-supplied input via the XML install
        file. (CVE-2015-8564)
    
      - A path traversal vulnerability exists due to improper
        sanitization of input supplied via user requests.
        (CVE-2015-8565)
    
    Note that Nessus has not tested for these issues but has instead
    relied only on the application's self-reported version number.");
      # https://www.joomla.org/announcements/release-news/5641-joomla-3-4-6-released.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b06a8fbc");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Joomla! version 3.4.6 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:F/RL:OF/RC:ND");
      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_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:X");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-8565");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'Joomla HTTP Header Unauthenticated Remote Code Execution');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
      script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
      script_set_attribute(attribute:"canvas_package", value:'CANVAS');
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/12/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/16");
    
      script_set_attribute(attribute:"potential_vulnerability", value:"true");
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:joomla:joomla\!");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"CGI abuses");
    
      script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("joomla_detect.nasl");
      script_require_keys("installed_sw/Joomla!", "www/PHP", "Settings/ParanoidReport");
      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 = "Joomla!";
    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
    );
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    version = install['version'];
    install_loc =  build_url(port:port, qs:install['path']);
    fix = "3.4.6";
    
    # Pull out the purely numeric version
    numeric = eregmatch(string:version, pattern:"^([0-9\.]+)($|[^0-9])");
    
    if (empty_or_null(numeric))
      audit(AUDIT_UNKNOWN_WEB_APP_VER, app, install_loc);
    
    numeric = numeric[1];
    
    if (numeric == "3.4")
      audit(AUDIT_VER_NOT_GRANULAR, app, version);
    
    # Version 1.5.0 - 3.4.5 vulnerable to RCE
    if (ver_compare(ver:numeric, fix:"1.5.0", strict:FALSE) >= 0 &&
        ver_compare(ver:numeric, fix:fix, strict:FALSE) < 0)
    {
      order = make_list("URL", "Installed version", "Fixed version");
      report = make_array(
        order[0], install_loc,
        order[1], version,
        order[2], fix
      );
      report = report_items_str(report_items:report, ordered_fields:order);
    
      security_report_v4(port:port, extra:report, severity:SECURITY_HOLE, xsrf:TRUE);
      exit(0);
    }
    else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_loc, version);
    
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_A9F60CE8A4E011E5B86414DAE9D210B8.NASL
    descriptionThe JSST and the Joomla! Security Center report : [20151201] - Core - Remote Code Execution Vulnerability Browser information is not filtered properly while saving the session values into the database which leads to a Remote Code Execution vulnerability. [20151202] - Core - CSRF Hardening Add additional CSRF hardening in com_templates. [20151203] - Core - Directory Traversal Failure to properly sanitize input data from the XML install file located within an extension
    last seen2020-06-01
    modified2020-06-02
    plugin id87483
    published2015-12-18
    reporterThis script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87483
    titleFreeBSD : joomla -- multiple vulnerabilities (a9f60ce8-a4e0-11e5-b864-14dae9d210b8)
    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(87483);
      script_version("2.8");
      script_cvs_date("Date: 2018/11/10 11:49:44");
    
      script_cve_id("CVE-2015-8562", "CVE-2015-8563", "CVE-2015-8564", "CVE-2015-8565");
    
      script_name(english:"FreeBSD : joomla -- multiple vulnerabilities (a9f60ce8-a4e0-11e5-b864-14dae9d210b8)");
      script_summary(english:"Checks for updated package in pkg_info output");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote FreeBSD host is missing a security-related update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The JSST and the Joomla! Security Center report : [20151201] - Core -
    Remote Code Execution Vulnerability Browser information is not
    filtered properly while saving the session values into the database
    which leads to a Remote Code Execution vulnerability. [20151202] -
    Core - CSRF Hardening Add additional CSRF hardening in com_templates.
    [20151203] - Core - Directory Traversal Failure to properly sanitize
    input data from the XML install file located within an extension's
    package archive allows for directory traversal. [20151204] - Core -
    Directory Traversal Inadequate filtering of request data leads to a
    Directory Traversal vulnerability."
      );
      # https://www.joomla.org/announcements/release-news/5641-joomla-3-4-6-released.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?b06a8fbc"
      );
      # https://developer.joomla.org/security-centre/630-20151214-core-remote-code-execution-vulnerability.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?bec8944e"
      );
      # https://developer.joomla.org/security-centre/633-20151214-core-csrf-hardening.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?08e45224"
      );
      # https://developer.joomla.org/security-centre/634-20151214-core-directory-traversal.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?c674f363"
      );
      # https://developer.joomla.org/security-centre/635-20151214-core-directory-traversal-2.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?4c388902"
      );
      # https://vuxml.freebsd.org/freebsd/a9f60ce8-a4e0-11e5-b864-14dae9d210b8.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?408c5832"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'Joomla HTTP Header Unauthenticated Remote Code Execution');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
      script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
      script_set_attribute(attribute:"canvas_package", value:'CANVAS');
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:joomla3");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/12/17");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/18");
      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:"joomla3<3.4.6")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");