Vulnerabilities > CVE-2018-12400 - Information Exposure vulnerability in Mozilla Firefox
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
LOW Integrity impact
NONE Availability impact
NONE Summary
In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows information leakage of sites visited during private browsing sessions. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.*. This vulnerability affects Firefox < 63.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Subverting Environment Variable Values The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
- Footprinting An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
- Exploiting Trust in Client (aka Make the Client Invisible) An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
- Browser Fingerprinting An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
- Session Credential Falsification through Prediction This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.
Nessus
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_7C3A02B932734426A0BAF90FAD2FF72E.NASL description Mozilla Foundation reports : CVE-2018-12391: HTTP Live Stream audio data is accessible cross-origin CVE-2018-12392: Crash with nested event loops CVE-2018-12393: Integer overflow during Unicode conversion while loading JavaScript CVE-2018-12395: WebExtension bypass of domain restrictions through header rewriting CVE-2018-12396: WebExtension content scripts can execute in disallowed contexts CVE-2018-12397 : CVE-2018-12398: CSP bypass through stylesheet injection in resource URIs CVE-2018-12399: Spoofing of protocol registration notification bar CVE-2018-12400: Favicons are cached in private browsing mode on Firefox for Android CVE-2018-12401: DOS attack through special resource URI parsing CVE-2018-12402: SameSite cookies leak when pages are explicitly saved CVE-2018-12403: Mixed content warning is not displayed when HTTPS page loads a favicon over HTTP CVE-2018-12388: Memory safety bugs fixed in Firefox 63 CVE-2018-12390: Memory safety bugs fixed in Firefox 63 and Firefox ESR 60.3 last seen 2020-06-01 modified 2020-06-02 plugin id 118336 published 2018-10-24 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118336 title FreeBSD : mozilla -- multiple vulnerabilities (7c3a02b9-3273-4426-a0ba-f90fad2ff72e) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from the FreeBSD VuXML database : # # Copyright 2003-2019 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(118336); script_version("1.5"); script_cvs_date("Date: 2019/07/23 10:11:24"); script_cve_id("CVE-2018-12388", "CVE-2018-12390", "CVE-2018-12391", "CVE-2018-12392", "CVE-2018-12393", "CVE-2018-12395", "CVE-2018-12396", "CVE-2018-12397", "CVE-2018-12398", "CVE-2018-12399", "CVE-2018-12400", "CVE-2018-12401", "CVE-2018-12402", "CVE-2018-12403"); script_name(english:"FreeBSD : mozilla -- multiple vulnerabilities (7c3a02b9-3273-4426-a0ba-f90fad2ff72e)"); 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-2018-12391: HTTP Live Stream audio data is accessible cross-origin CVE-2018-12392: Crash with nested event loops CVE-2018-12393: Integer overflow during Unicode conversion while loading JavaScript CVE-2018-12395: WebExtension bypass of domain restrictions through header rewriting CVE-2018-12396: WebExtension content scripts can execute in disallowed contexts CVE-2018-12397 : CVE-2018-12398: CSP bypass through stylesheet injection in resource URIs CVE-2018-12399: Spoofing of protocol registration notification bar CVE-2018-12400: Favicons are cached in private browsing mode on Firefox for Android CVE-2018-12401: DOS attack through special resource URI parsing CVE-2018-12402: SameSite cookies leak when pages are explicitly saved CVE-2018-12403: Mixed content warning is not displayed when HTTPS page loads a favicon over HTTP CVE-2018-12388: Memory safety bugs fixed in Firefox 63 CVE-2018-12390: Memory safety bugs fixed in Firefox 63 and Firefox ESR 60.3" ); script_set_attribute( attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2018-26/" ); script_set_attribute( attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/" ); # https://vuxml.freebsd.org/freebsd/7c3a02b9-3273-4426-a0ba-f90fad2ff72e.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?eaa97cd1" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:"p-cpe:/a:freebsd:freebsd:waterfox"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/23"); script_set_attribute(attribute:"patch_publication_date", value:"2018/10/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/24"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2019 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<63.0_1,1")) flag++; if (pkg_test(save_report:TRUE, pkg:"waterfox<56.2.5")) flag++; if (pkg_test(save_report:TRUE, pkg:"seamonkey<2.53.0")) flag++; if (pkg_test(save_report:TRUE, pkg:"linux-seamonkey<2.53.0")) flag++; if (pkg_test(save_report:TRUE, pkg:"firefox-esr<60.3.0,1")) flag++; if (pkg_test(save_report:TRUE, pkg:"linux-firefox<60.3.0,2")) flag++; if (pkg_test(save_report:TRUE, pkg:"libxul<60.3.0")) flag++; if (pkg_test(save_report:TRUE, pkg:"thunderbird<60.3.0")) flag++; if (pkg_test(save_report:TRUE, pkg:"linux-thunderbird<60.3.0")) 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_63_0.NASL description The version of Mozilla Firefox installed on the remote Windows host is prior to 63. It is, therefore, affected by multiple vulnerabilities : - During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.* (CVE-2018-12391) - When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable crash due to poor event handling. (CVE-2018-12392) - A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.* (CVE-2018-12393) - By rewriting the Host request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. (CVE-2018-12395) - A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. (CVE-2018-12396) - A WebExtension can request access to local files without the warning prompt stating that the extension will last seen 2020-06-01 modified 2020-06-02 plugin id 118397 published 2018-10-25 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118397 title Mozilla Firefox < 63 Multiple Vulnerabilities NASL family MacOS X Local Security Checks NASL id MACOSX_FIREFOX_63_0.NASL description The version of Mozilla Firefox installed on the remote macOS host is prior to 63. It is, therefore, affected by multiple vulnerabilities : - During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.* (CVE-2018-12391) - When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable crash due to poor event handling. (CVE-2018-12392) - A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.* (CVE-2018-12393) - By rewriting the Host request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. (CVE-2018-12395) - A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. (CVE-2018-12396) - A WebExtension can request access to local files without the warning prompt stating that the extension will last seen 2020-06-01 modified 2020-06-02 plugin id 118396 published 2018-10-25 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118396 title Mozilla Firefox < 63 Multiple Vulnerabilities (macOS)