Vulnerabilities > CVE-2017-7836 - Uncontrolled Search Path Element vulnerability in Mozilla Firefox
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
The "pingsender" executable used by the Firefox Health Report dynamically loads a system copy of libcurl, which an attacker could replace. This allows for privilege escalation as the replaced libcurl code will run with Firefox's privileges. Note: This attack requires an attacker have local system access and only affects OS X and Linux. Windows systems are not affected. This vulnerability affects Firefox < 57.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leveraging/Manipulating Configuration File Search Paths This attack loads a malicious resource into a program's standard path used to bootstrap and/or provide contextual information for a program like a path variable or classpath. J2EE applications and other component based applications that are built from multiple binaries can have very long list of dependencies to execute. If one of these libraries and/or references is controllable by the attacker then application controls can be circumvented by the attacker. A standard UNIX path looks similar to this If the attacker modifies the path variable to point to a locale that includes malicious resources then the user unwittingly can execute commands on the attackers' behalf: This is a form of usurping control of the program and the attack can be done on the classpath, database resources, or any other resources built from compound parts. At runtime detection and blocking of this attack is nearly impossible, because the configuration allows execution.
- DLL Search Order Hijacking The attacker exploits the functionality of the Windows DLL loader where the process loading the DLL searches for the DLL to be loaded first in the same directory in which the process binary resides and then in other directories (e.g., System32). Exploitation of this preferential search order can allow an attacker to make the loading process load the attackers' rogue DLL rather than the legitimate DLL. For instance, an attacker with access to the file system may place a malicious ntshrui.dll in the C:\Windows directory. This DLL normally resides in the System32 folder. Process explorer.exe which also resides in C:\Windows, upon trying to load the ntshrui.dll from the System32 folder will actually load the DLL supplied by the attacker simply because of the preferential search order. Since the attacker has placed its malicious ntshrui.dll in the same directory as the loading explorer.exe process, the DLL supplied by the attacker will be found first and thus loaded in lieu of the legitimate DLL. Since explorer.exe is loaded during the boot cycle, the attackers' malware is guaranteed to execute. This attack can be leveraged with many different DLLs and with many different loading processes. No forensic trails are left in the system's registry or file system that an incorrect DLL had been loaded.
Nessus
NASL family Windows NASL id MOZILLA_FIREFOX_57_0.NASL description The version of Mozilla Firefox installed on the remote Windows host is prior to 57. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes. last seen 2020-06-01 modified 2020-06-02 plugin id 104638 published 2017-11-16 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104638 title Mozilla Firefox < 57 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(104638); script_version("1.5"); script_cvs_date("Date: 2019/11/12"); script_cve_id( "CVE-2017-7826", "CVE-2017-7827", "CVE-2017-7828", "CVE-2017-7830", "CVE-2017-7831", "CVE-2017-7832", "CVE-2017-7833", "CVE-2017-7834", "CVE-2017-7835", "CVE-2017-7836", "CVE-2017-7837", "CVE-2017-7838", "CVE-2017-7839", "CVE-2017-7840", "CVE-2017-7842" ); script_bugtraq_id(101832); script_xref(name:"MFSA", value:"2017-24"); script_name(english:"Mozilla Firefox < 57 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Firefox."); script_set_attribute(attribute:"synopsis", value: "A web browser installed on the remote Windows host is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Mozilla Firefox installed on the remote Windows host is prior to 57. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes."); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Firefox version 57 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); 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:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7827"); 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:"2017/11/14"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/16"); 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:"Windows"); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("mozilla_org_installed.nasl"); script_require_keys("Mozilla/Firefox/Version"); exit(0); } include("mozilla_version.inc"); port = get_kb_item("SMB/transport"); if (!port) port = 445; installs = get_kb_list("SMB/Mozilla/Firefox/*"); if (isnull(installs)) audit(AUDIT_NOT_INST, "Firefox"); mozilla_check_version(installs:installs, product:'firefox', fix:'57', severity:SECURITY_HOLE);
NASL family MacOS X Local Security Checks NASL id MACOSX_FIREFOX_52_5_ESR.NASL description The version of Mozilla Firefox ESR installed on the remote macOS or Mac OS X host is prior to 52.5. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes. last seen 2020-06-01 modified 2020-06-02 plugin id 104635 published 2017-11-16 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104635 title Mozilla Firefox ESR < 52.5 Multiple Vulnerabilities (macOS) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(104635); script_version("1.5"); script_cvs_date("Date: 2019/11/12"); script_cve_id( "CVE-2017-7826", "CVE-2017-7827", "CVE-2017-7828", "CVE-2017-7830", "CVE-2017-7831", "CVE-2017-7832", "CVE-2017-7833", "CVE-2017-7834", "CVE-2017-7835", "CVE-2017-7836", "CVE-2017-7837", "CVE-2017-7838", "CVE-2017-7839", "CVE-2017-7840", "CVE-2017-7842" ); script_bugtraq_id(101832); script_xref(name:"MFSA", value:"2017-25"); script_name(english:"Mozilla Firefox ESR < 52.5 Multiple Vulnerabilities (macOS)"); script_summary(english:"Checks the version of Firefox."); script_set_attribute(attribute:"synopsis", value: "A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Mozilla Firefox ESR installed on the remote macOS or Mac OS X host is prior to 52.5. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes."); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-25/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Firefox ESR version 52.5 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); 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:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7827"); 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:"2017/11/14"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/16"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"MacOS X Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("macosx_firefox_installed.nasl"); script_require_keys("MacOSX/Firefox/Version"); 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); is_esr = get_kb_item(kb_base+"/is_esr"); if (isnull(is_esr)) audit(AUDIT_NOT_INST, "Mozilla Firefox ESR"); mozilla_check_version(version:version, path:path, product:'firefox', esr:TRUE, fix:'52.5', min:'52', severity:SECURITY_HOLE);
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_F78EAC48C3D146668DE563CEEA25A578.NASL description Mozilla Foundation reports : CVE-2017-7828: Use-after-free of PressShell while restyling layout CVE-2017-7830: Cross-origin URL information leak through Resource Timing API CVE-2017-7831: Information disclosure of exposed properties on JavaScript proxy objects CVE-2017-7832: Domain spoofing through use of dotless last seen 2020-06-01 modified 2020-06-02 plugin id 104564 published 2017-11-15 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104564 title FreeBSD : mozilla -- multiple vulnerabilities (f78eac48-c3d1-4666-8de5-63ceea25a578) 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(104564); script_version("3.5"); script_cvs_date("Date: 2018/11/23 12:49:58"); script_cve_id("CVE-2017-7826", "CVE-2017-7827", "CVE-2017-7828", "CVE-2017-7830", "CVE-2017-7831", "CVE-2017-7832", "CVE-2017-7833", "CVE-2017-7834", "CVE-2017-7835", "CVE-2017-7836", "CVE-2017-7837", "CVE-2017-7838", "CVE-2017-7839", "CVE-2017-7840", "CVE-2017-7842"); script_name(english:"FreeBSD : mozilla -- multiple vulnerabilities (f78eac48-c3d1-4666-8de5-63ceea25a578)"); 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: "Mozilla Foundation reports : CVE-2017-7828: Use-after-free of PressShell while restyling layout CVE-2017-7830: Cross-origin URL information leak through Resource Timing API CVE-2017-7831: Information disclosure of exposed properties on JavaScript proxy objects CVE-2017-7832: Domain spoofing through use of dotless 'i' character followed by accent markers CVE-2017-7833: Domain spoofing with Arabic and Indic vowel marker characters CVE-2017-7834: data: URLs opened in new tabs bypass CSP protections CVE-2017-7835: Mixed content blocking incorrectly applies with redirects CVE-2017-7836: Pingsender dynamically loads libcurl on Linux and OS X CVE-2017-7837: SVG loaded as <img> can use meta tags to set cookies CVE-2017-7838: Failure of individual decoding of labels in international domain names triggers punycode display of entire IDN CVE-2017-7839: Control characters before javascript: URLs defeats self-XSS prevention mechanism CVE-2017-7840: Exported bookmarks do not strip script elements from user-supplied tags CVE-2017-7842: Referrer Policy is not always respected for <link> elements CVE-2017-7827: Memory safety bugs fixed in Firefox 57 CVE-2017-7826: Memory safety bugs fixed in Firefox 57 and Firefox ESR 52.5" ); # https://www.mozilla.org/security/advisories/mfsa2017-24/ script_set_attribute( attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/" ); # https://www.mozilla.org/security/advisories/mfsa2017-25/ script_set_attribute( attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-25/" ); # https://vuxml.freebsd.org/freebsd/f78eac48-c3d1-4666-8de5-63ceea25a578.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?9d02b5e7" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); 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:firefox"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:firefox-esr"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:libxul"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-firefox"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-seamonkey"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-thunderbird"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:seamonkey"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:thunderbird"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/14"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/15"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2017-2018 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<56.0.2_10,1")) flag++; if (pkg_test(save_report:TRUE, pkg:"seamonkey<2.49.2")) flag++; if (pkg_test(save_report:TRUE, pkg:"linux-seamonkey<2.49.2")) flag++; if (pkg_test(save_report:TRUE, pkg:"firefox-esr<52.5.0,1")) flag++; if (pkg_test(save_report:TRUE, pkg:"linux-firefox<52.5.0,2")) flag++; if (pkg_test(save_report:TRUE, pkg:"libxul<52.5.0")) flag++; if (pkg_test(save_report:TRUE, pkg:"thunderbird<52.5.0")) flag++; if (pkg_test(save_report:TRUE, pkg:"linux-thunderbird<52.5.0")) 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");
NASL family Windows NASL id MOZILLA_FIREFOX_52_5_ESR.NASL description The version of Mozilla Firefox ESR installed on the remote Windows host is prior to 52.5. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes. last seen 2020-06-01 modified 2020-06-02 plugin id 104637 published 2017-11-16 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104637 title Mozilla Firefox ESR < 52.5 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(104637); script_version("1.6"); script_cvs_date("Date: 2019/11/12"); script_cve_id( "CVE-2017-7826", "CVE-2017-7827", "CVE-2017-7828", "CVE-2017-7830", "CVE-2017-7831", "CVE-2017-7832", "CVE-2017-7833", "CVE-2017-7834", "CVE-2017-7835", "CVE-2017-7836", "CVE-2017-7837", "CVE-2017-7838", "CVE-2017-7839", "CVE-2017-7840", "CVE-2017-7842" ); script_bugtraq_id(101832); script_xref(name:"MFSA", value:"2017-25"); script_name(english:"Mozilla Firefox ESR < 52.5 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Firefox."); script_set_attribute(attribute:"synopsis", value: "A web browser installed on the remote Windows host is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Mozilla Firefox ESR installed on the remote Windows host is prior to 52.5. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable crashes."); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-25/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Firefox ESR version 52.5 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); 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:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7827"); 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:"2017/11/14"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/16"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Windows"); script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("mozilla_org_installed.nasl"); script_require_keys("Mozilla/Firefox/Version"); exit(0); } include("mozilla_version.inc"); port = get_kb_item("SMB/transport"); if (!port) port = 445; installs = get_kb_list("SMB/Mozilla/Firefox/*"); if (isnull(installs)) audit(AUDIT_NOT_INST, "Firefox"); mozilla_check_version(installs:installs, product:'firefox', esr:TRUE, fix:'52.5', min:'52', severity:SECURITY_HOLE);
NASL family MacOS X Local Security Checks NASL id MACOSX_FIREFOX_57_0.NASL description The version of Mozilla Firefox installed on the remote macOS or Mac OS X host is prior to 57. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable application crashes. last seen 2020-06-01 modified 2020-06-02 plugin id 104636 published 2017-11-16 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104636 title Mozilla Firefox < 57 Multiple Vulnerabilities (macOS) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(104636); script_version("1.5"); script_cvs_date("Date: 2019/11/12"); script_cve_id( "CVE-2017-7826", "CVE-2017-7827", "CVE-2017-7828", "CVE-2017-7830", "CVE-2017-7831", "CVE-2017-7832", "CVE-2017-7833", "CVE-2017-7834", "CVE-2017-7835", "CVE-2017-7836", "CVE-2017-7837", "CVE-2017-7838", "CVE-2017-7839", "CVE-2017-7840", "CVE-2017-7842" ); script_bugtraq_id(101832); script_xref(name:"MFSA", value:"2017-24"); script_name(english:"Mozilla Firefox < 57 Multiple Vulnerabilities (macOS)"); script_summary(english:"Checks the version of Firefox."); script_set_attribute(attribute:"synopsis", value: "A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Mozilla Firefox installed on the remote macOS or Mac OS X host is prior to 57. It is, therefore, affected by multiple vulnerabilities, some of which allow code execution and potentially exploitable application crashes."); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2017-24/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Firefox version 57 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); 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:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7827"); 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:"2017/11/14"); script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/16"); 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) 2017-2019 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:'57', severity:SECURITY_HOLE);