Vulnerabilities > CVE-2016-5288 - Information Exposure vulnerability in Mozilla Firefox
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
Web content could access information in the HTTP cache if e10s is disabled. This can reveal some visited URLs and the contents of those pages. This issue affects Firefox 48 and 49. This vulnerability affects Firefox < 49.0.2.
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 Windows NASL id MOZILLA_FIREFOX_49_0_2.NASL description The version of Mozilla Firefox installed on the remote Windows host is 48.x or 49.x prior to 49.0.2. It is, therefore, affected by multiple vulnerabilities : - A use-after-free error exists in the nsTArray_base<T>::SwapArrayElements() function during actor destruction with service workers. An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code. Note that this vulnerability only affects version 49.x prior to 49.0.2. (CVE-2016-5287) - An information disclosure vulnerability exists due to an unspecified flaw when e10s is disabled. An unauthenticated, remote attacker can exploit this, via specially crafted web content, to disclose sensitive information in the HTTP cache regarding visited URLs and their content. Note that this vulnerability only affects version 48.x or 49.x prior to 49.0.2. (CVE-2016-5288) last seen 2020-06-01 modified 2020-06-02 plugin id 94232 published 2016-10-25 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94232 title Mozilla Firefox 48.x / 49.x < 49.0.2 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(94232); script_version("1.7"); script_cvs_date("Date: 2019/11/14"); script_cve_id("CVE-2016-5287", "CVE-2016-5288"); script_bugtraq_id(93810, 93811); script_xref(name:"MFSA", value:"2016-87"); script_name(english:"Mozilla Firefox 48.x / 49.x < 49.0.2 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Firefox."); script_set_attribute(attribute:"synopsis", value: "The remote Windows host contains a web browser that is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Mozilla Firefox installed on the remote Windows host is 48.x or 49.x prior to 49.0.2. It is, therefore, affected by multiple vulnerabilities : - A use-after-free error exists in the nsTArray_base<T>::SwapArrayElements() function during actor destruction with service workers. An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code. Note that this vulnerability only affects version 49.x prior to 49.0.2. (CVE-2016-5287) - An information disclosure vulnerability exists due to an unspecified flaw when e10s is disabled. An unauthenticated, remote attacker can exploit this, via specially crafted web content, to disclose sensitive information in the HTTP cache regarding visited URLs and their content. Note that this vulnerability only affects version 48.x or 49.x prior to 49.0.2. (CVE-2016-5288)"); script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2016-87/"); script_set_attribute(attribute:"solution", value: "Upgrade to Mozilla Firefox version 49.0.2 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: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-2016-5287"); 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:"2016/10/20"); script_set_attribute(attribute:"patch_publication_date", value:"2016/10/20"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/25"); 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) 2016-2019 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:FALSE, fix:'49.0.2', min:'48', severity:SECURITY_HOLE);
NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1271.NASL description Mozilla Firefox was updated to 49.0.2 to fix two security issues and some bugs. The following vulnerabilities were fixed : - CVE-2016-5287: Crash in nsTArray_base (bsc#1006475) - CVE-2016-5288: Web content can read cache entries (bsc#1006476) The following changes and fixes are included : - Asynchronous rendering of the Flash plugins is now enabled by default - Change D3D9 default fallback preference to prevent graphical artifacts - Network issue prevents some users from seeing the Firefox UI on startup - Web compatibility issue with file uploads - Web compatibility issue with Array.prototype.values - Diagnostic information on timing for tab switching - Fix a Canvas filters graphics issue affecting HTML5 apps last seen 2020-06-05 modified 2016-11-07 plugin id 94602 published 2016-11-07 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94602 title openSUSE Security Update : Mozilla Firefox (openSUSE-2016-1271) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-2639.NASL description Mozilla Firefox was updated to 49.0.2 to fix two security issues a some bugs. The following vulnerabilities were fixed : - CVE-2016-5287: Crash in nsTArray_base (bsc#1006475) - CVE-2016-5288: Web content can read cache entries (bsc#1006476) The following changes and fixes are included : - Asynchronous rendering of the Flash plugins is now enabled by default - Change D3D9 default fallback preference to prevent graphical artifacts - Network issue prevents some users from seeing the Firefox UI on startup - Web compatibility issue with file uploads - Web compatibility issue with Array.prototype.values - Diagnostic information on timing for tab switching - Fix a Canvas filters graphics issue affecting HTML5 apps last seen 2020-06-05 modified 2016-10-31 plugin id 94427 published 2016-10-31 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94427 title openSUSE Security Update : Mozilla Firefox (openSUSE-2016-2639) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3111-1.NASL description A use-after-free was discovered in service workers. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via program crash, or execute arbitrary code. (CVE-2016-5287) It was discovered that web content could access information in the HTTP cache in some circumstances. An attacker could potentially exploit this to obtain sensitive information. (CVE-2016-5288). 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 seen 2020-06-01 modified 2020-06-02 plugin id 94351 published 2016-10-28 reporter Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94351 title Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : firefox vulnerabilities (USN-3111-1) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_AAA9F3DB13B54A0E9ED7E5AB287098FA.NASL description Mozilla Foundation reports : CVE-2016-5287: Crash in nsTArray_base<T>::SwapArrayElements CVE-2016-5288: Web content can read cache entries last seen 2020-06-01 modified 2020-06-02 plugin id 94214 published 2016-10-24 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94214 title FreeBSD : mozilla -- multiple vulnerabilities (aaa9f3db-13b5-4a0e-9ed7-e5ab287098fa) NASL family MacOS X Local Security Checks NASL id MACOSX_FIREFOX_49_0_2.NASL description The version of Mozilla Firefox installed on the remote macOS host is 48.x or 49.x prior to 49.0.2. It is, therefore, affected by multiple vulnerabilities : - A use-after-free error exists in the nsTArray_base<T>::SwapArrayElements() function during actor destruction with service workers. An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code. Note that this vulnerability only affects version 49.x prior to 49.0.2. (CVE-2016-5287) - An information disclosure vulnerability exists due to an unspecified flaw when e10s is disabled. An unauthenticated, remote attacker can exploit this, via specially crafted web content, to disclose sensitive information in the HTTP cache regarding visited URLs and their content. Note that this vulnerability only affects version 48.x or 49.x prior to 49.0.2. (CVE-2016-5288) last seen 2020-06-01 modified 2020-06-02 plugin id 94231 published 2016-10-25 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94231 title Mozilla Firefox 48.x / 49.x < 49.0.2 Multiple Vulnerabilities (macOS)
References
- http://www.securityfocus.com/bid/93810
- http://www.securityfocus.com/bid/93810
- http://www.securitytracker.com/id/1037077
- http://www.securitytracker.com/id/1037077
- https://bugzilla.mozilla.org/show_bug.cgi?id=1310183
- https://bugzilla.mozilla.org/show_bug.cgi?id=1310183
- https://www.mozilla.org/security/advisories/mfsa2016-87/
- https://www.mozilla.org/security/advisories/mfsa2016-87/