Vulnerabilities > CVE-2015-7184 - Improper Access Control vulnerability in Mozilla Firefox

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
mozilla
CWE-284
nessus

Summary

The fetch API implementation in Mozilla Firefox before 41.0.2 does not restrict access to the HTTP response body in certain situations where user credentials are supplied but the CORS cross-origin request algorithm is improperly followed, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

Vulnerable Configurations

Part Description Count
Application
Mozilla
295

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 familySuSE Local Security Checks
    NASL idOPENSUSE-2015-678.NASL
    descriptionMozillaFirefox was updated to version 41.0.2 to fix one security issue. This security issue was fixed : - CVE-2015-7184: Cross-origin restriction bypass using Fetch (bsc#950686). These non-security issues were fixed : - Fix a startup crash related to Yandex toolbar and Adblock Plus (bmo#1209124) - Fix potential hangs with Flash plugins (bmo#1185639) - Fix a regression in the bookmark creation (bmo#1206376) - Fix a startup crash with some Intel Media Accelerator 3150 graphic cards (bmo#1207665) - Fix a graphic crash, occurring occasionally on Facebook (bmo#1178601)
    last seen2020-06-05
    modified2015-10-26
    plugin id86595
    published2015-10-26
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/86595
    titleopenSUSE Security Update : MozillaFirefox (openSUSE-2015-678)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from openSUSE Security Update openSUSE-2015-678.
    #
    # The text description of this plugin is (C) SUSE LLC.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(86595);
      script_version("2.5");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");
    
      script_cve_id("CVE-2015-7184");
    
      script_name(english:"openSUSE Security Update : MozillaFirefox (openSUSE-2015-678)");
      script_summary(english:"Check for the openSUSE-2015-678 patch");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote openSUSE host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "MozillaFirefox was updated to version 41.0.2 to fix one security
    issue.
    
    This security issue was fixed :
    
      - CVE-2015-7184: Cross-origin restriction bypass using
        Fetch (bsc#950686).
    
    These non-security issues were fixed :
    
      - Fix a startup crash related to Yandex toolbar and
        Adblock Plus (bmo#1209124)
    
      - Fix potential hangs with Flash plugins (bmo#1185639)
    
      - Fix a regression in the bookmark creation (bmo#1206376)
    
      - Fix a startup crash with some Intel Media Accelerator
        3150 graphic cards (bmo#1207665)
    
      - Fix a graphic crash, occurring occasionally on Facebook
        (bmo#1178601)"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.opensuse.org/show_bug.cgi?id=949983"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.opensuse.org/show_bug.cgi?id=950686"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected MozillaFirefox packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-branding-upstream");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-buildsymbols");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-debugsource");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-translations-common");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:MozillaFirefox-translations-other");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.1");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.2");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2015/10/16");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/10/26");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.");
      script_family(english:"SuSE Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
    
      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/SuSE/release");
    if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
    if (release !~ "^(SUSE13\.1|SUSE13\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.1 / 13.2", release);
    if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    ourarch = get_kb_item("Host/cpu");
    if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
    if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
    
    flag = 0;
    
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-branding-upstream-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-buildsymbols-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-debuginfo-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-debugsource-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-devel-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-translations-common-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.1", reference:"MozillaFirefox-translations-other-41.0.2-91.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-branding-upstream-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-buildsymbols-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-debuginfo-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-debugsource-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-devel-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-translations-common-41.0.2-47.1") ) flag++;
    if ( rpm_check(release:"SUSE13.2", reference:"MozillaFirefox-translations-other-41.0.2-47.1") ) 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, "MozillaFirefox / MozillaFirefox-branding-upstream / etc");
    }
    
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_79C68EF7C8AE4ADE91B44B8221B7C72A.NASL
    descriptionFirefox Developers report : Security researcher Abdulrahman Alqabandi reported that the fetch() API did not correctly implement the Cross-Origin Resource Sharing (CORS) specification, allowing a malicious page to access private data from other origins. Mozilla developer Ben Kelly independently reported the same issue.
    last seen2020-06-01
    modified2020-06-02
    plugin id86432
    published2015-10-19
    reporterThis script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86432
    titleFreeBSD : firefox -- Cross-origin restriction bypass using Fetch (79c68ef7-c8ae-4ade-91b4-4b8221b7c72a)
    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(86432);
      script_version("2.6");
      script_cvs_date("Date: 2018/11/10 11:49:44");
    
      script_cve_id("CVE-2015-7184");
    
      script_name(english:"FreeBSD : firefox -- Cross-origin restriction bypass using Fetch (79c68ef7-c8ae-4ade-91b4-4b8221b7c72a)");
      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:
    "Firefox Developers report :
    
    Security researcher Abdulrahman Alqabandi reported that the fetch()
    API did not correctly implement the Cross-Origin Resource Sharing
    (CORS) specification, allowing a malicious page to access private data
    from other origins. Mozilla developer Ben Kelly independently reported
    the same issue."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/"
      );
      # https://vuxml.freebsd.org/freebsd/79c68ef7-c8ae-4ade-91b4-4b8221b7c72a.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?0d908117"
      );
      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_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:firefox");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-firefox");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/10/15");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/10/16");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/10/19");
      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:"firefox<41.0.2,1")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"linux-firefox<41.0.2,1")) 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");
    
  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_FIREFOX_41_0_2.NASL
    descriptionThe version of Firefox installed on the remote Mac OS X host is prior to 41.0.2. It is, therefore, affected by a cross-origin restriction bypass vulnerability in the fetch() API due to an incorrect implementation of the Cross-Origin Resource Sharing (CORS) specification. A remote attacker can exploit this, via a malicious website, to access private data from other origins.
    last seen2020-06-01
    modified2020-06-02
    plugin id86417
    published2015-10-16
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86417
    titleFirefox < 41.0.2 'fetch' API Cross-Origin Bypass (Mac OS X)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(86417);
      script_version("1.8");
      script_cvs_date("Date: 2019/11/20");
    
      script_cve_id("CVE-2015-7184");
    
      script_name(english:"Firefox < 41.0.2 'fetch' API Cross-Origin Bypass (Mac OS X)");
      script_summary(english:"Checks the version of Firefox.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Mac OS X host contains a web browser that is affected by
    a cross-origin restriction bypass vulnerability.");
      script_set_attribute(attribute:"description", value:
    "The version of Firefox installed on the remote Mac OS X host is prior
    to 41.0.2. It is, therefore, affected by a cross-origin restriction
    bypass vulnerability in the fetch() API due to an incorrect
    implementation of the Cross-Origin Resource Sharing (CORS)
    specification. A remote attacker can exploit this, via a malicious
    website, to access private data from other origins.");
      script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Firefox 41.0.2 or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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-2015-7184");
    
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/10/15");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/10/15");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/10/16");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"MacOS X Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("macosx_firefox_installed.nasl");
      script_require_keys("MacOSX/Firefox/Installed");
    
      exit(0);
    }
    
    include("mozilla_version.inc");
    
    kb_base = "MacOSX/Firefox";
    get_kb_item_or_exit(kb_base+"/Installed");
    
    version = get_kb_item_or_exit(kb_base+"/Version", exit_code:1);
    path = get_kb_item_or_exit(kb_base+"/Path", exit_code:1);
    
    if (get_kb_item(kb_base + '/is_esr')) exit(0, 'The Mozilla Firefox installation is in the ESR branch.');
    
    mozilla_check_version(product:'firefox', version:version, path:path, esr:FALSE, fix:'41.0.2', severity:SECURITY_WARNING);
    
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-2768-1.NASL
    descriptionAbdulrahman Alqabandi and Ben Kelly discovered that the fetch() API did not correctly implement the Cross Origin Resource Sharing (CORS) specification. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from other origins. (CVE-2015-7184). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id86443
    published2015-10-19
    reporterUbuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86443
    titleUbuntu 12.04 LTS / 14.04 LTS / 15.04 : firefox vulnerability (USN-2768-1)
  • NASL familyWindows
    NASL idMOZILLA_FIREFOX_41_0_2.NASL
    descriptionThe version of Firefox installed on the remote Windows host is prior to 41.0.2. It is, therefore, affected by a cross-origin restriction bypass vulnerability in the fetch() API due to an incorrect implementation of the Cross-Origin Resource Sharing (CORS) specification. A remote attacker can exploit this, via a malicious website, to access private data from other origins.
    last seen2020-06-01
    modified2020-06-02
    plugin id86418
    published2015-10-16
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86418
    titleFirefox < 41.0.2 'fetch' API Cross-Origin Bypass