ID CVE-2016-2820
Summary The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.
References
Vulnerable Configurations
  • Mozilla Firefox 45.0.2
    cpe:2.3:a:mozilla:firefox:45.0.2
CVSS
Base: 4.3 (as of 04-05-2016 - 12:02)
Impact:
Exploitability:
CWE CWE-284
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.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
NONE PARTIAL NONE
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2936-3.NASL
    description USN-2936-1 fixed vulnerabilities in Firefox. The update caused an issue where a device update POST request was sent every time about:preferences#sync was shown. This update fixes the problem. We apologize for the inconvenience. Christian Holler, Tyson Smith, Phil Ringalda, Gary Kwong, Jesse Ruderman, Mats Palmgren, Carsten Book, Boris Zbarsky, David Bolter, Randell Jesup, Andrew McCreight, and Steve Fink discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2804, CVE-2016-2806, CVE-2016-2807) An invalid write was discovered when using the JavaScript .watch() method in some circumstances. 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 application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2808) Looben Yang discovered a use-after-free and buffer overflow in service workers. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2811, CVE-2016-2812) Sascha Just discovered a buffer overflow in libstagefright in some circumstances. 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 application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2814) Muneaki Nishimura discovered that CSP is not applied correctly to web content sent with the multipart/x-mixed-replace MIME type. An attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks when they would otherwise be prevented. (CVE-2016-2816) Muneaki Nishimura discovered that the chrome.tabs.update API for web extensions allows for navigation to javascript: URLs. A malicious extension could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-2817) Mark Goodwin discovered that about:healthreport accepts certain events from any content present in the remote-report iframe. If another vulnerability allowed the injection of web content in the remote-report iframe, an attacker could potentially exploit this to change the user's sharing preferences. (CVE-2016-2820). 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 2019-02-21
    modified 2018-12-01
    plugin id 91255
    published 2016-05-19
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91255
    title Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : firefox regression (USN-2936-3)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-566.NASL
    description This update to Mozilla Firefox 46.0 fixes several security issues and bugs (boo#977333). The following vulnerabilities were fixed : - CVE-2016-2804: Miscellaneous memory safety hazards - MFSA 2016-39 (boo#977373) - CVE-2016-2806: Miscellaneous memory safety hazards - MFSA 2016-39 (boo#977375) - CVE-2016-2807: Miscellaneous memory safety hazards - MFSA 2016-39 (boo#977376) - CVE-2016-2808: Write to invalid HashMap entry through JavaScript.watch() - MFSA 2016-47 (boo#977386) - CVE-2016-2811: Use-after-free in Service Worker - MFSA 2016-42 (boo#977379) - CVE-2016-2812: Buffer overflow in Service Worker - MFSA 2016-42 (boo#977379) - CVE-2016-2814: Buffer overflow in libstagefright with CENC offsets - MFSA 2016-44 (boo#977381) - CVE-2016-2816: CSP not applied to pages sent with multipart/x-mixed-replace - MFSA 2016-45 (boo#977382) - CVE-2016-2817: Elevation of privilege with chrome.tabs.update API in web extensions - MFSA 2016-46 (boo#977384) - CVE-2016-2820: Firefox Health Reports could accept events from untrusted domains - MFSA 2016-48 (boo#977388) The following miscellaneous changes are included : - Improved security of the JavaScript Just In Time (JIT) Compiler - WebRTC fixes to improve performance and stability - Added support for document.elementsFromPoint - Added HKDF support for Web Crypto API The minimum requirements increased to NSPR 4.12 and NSS 3.22.3. Mozilla NSS was updated to 3.22.3 as a dependency for Mozilla Firefox 46.0, with the following changes : - Increase compatibility of TLS extended master secret, don't send an empty TLS extension last in the handshake (bmo#1243641) - RSA-PSS signatures are now supported - Pseudorandom functions based on hashes other than SHA-1 are now supported - Enforce an External Policy on NSS from a config file
    last seen 2019-02-21
    modified 2016-10-24
    plugin id 91069
    published 2016-05-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91069
    title openSUSE Security Update : Firefox (openSUSE-2016-566) (SWEET32)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2936-1.NASL
    description This plugin has been deprecated because the fix caused errors, and the replacement fix is versioned strangely. Run ubuntu_USN-2936-3.nasl, plugin id 91255, instead.
    last seen 2017-10-29
    modified 2016-06-13
    plugin id 90823
    published 2016-05-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90823
    title Ubuntu 12.04 LTS / 14.04 / 15.10 / 16.04 : firefox vulnerabilities (USN-2936-1) (deprecated)
  • NASL family Windows
    NASL id MOZILLA_FIREFOX_46.NASL
    description The version of Firefox installed on the remote Windows host is prior to 46. It is, therefore, affected by multiple vulnerabilities : - Multiple memory corruption issues exist that allow an attacker to corrupt memory, resulting in the execution of arbitrary code. (CVE-2016-2804, CVE-2016-2806, CVE-2016-2807) - A flaw exists due to improper validation of user-supplied input when handling the 32-bit generation count of the underlying HashMap. A context-dependent attacker can exploit this to cause a buffer overflow condition, resulting in a denial of service or the execution of arbitrary code. (CVE-2016-2808) - A local privilege escalation vulnerability exists in the Maintenance Service updater due to improper handling of long log file paths. A local attacker can exploit this to delete arbitrary files and gain elevated privileges. (CVE-2016-2809) - A remote code execution vulnerability exists due to a use-after-free error in the BeginReading() function. A context-dependent attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code. (CVE-2016-2811) - A remote code execution vulnerability exists due to a race condition in ServiceWorkerManager in the get() function. A context-dependent attacker can exploit this to execute arbitrary code. (CVE-2016-2812) - A heap buffer overflow condition exists in the Google Stagefright component due to improper validation of user-supplied input when handling CENC offsets and the sizes table. A context-dependent attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-2814) - A security bypass vulnerability exists due to the Content Security Policy (CSP) not being properly applied to web content sent with the 'multipart/x-mixed-replace' MIME-type. A context-dependent attacker can exploit this to bypass CSP protection. (CVE-2016-2816) - A cross-site scripting (XSS) vulnerability exists due to improper restriction of unprivileged 'javascript: URL' navigation. A context-dependent attacker can exploit this, via a specially crafted request, to execute arbitrary script code in the context of a user's browser session. (CVE-2016-2817) - A flaw exists in the Firefox Health Report that is triggered when it accepts any content document events that are presented in its iframe. A context-dependent attacker can exploit this to manipulate sharing preferences. (CVE-2016-2820)
    last seen 2019-02-21
    modified 2018-07-16
    plugin id 90793
    published 2016-04-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90793
    title Firefox < 46 Multiple Vulnerabilities
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_92D44F83A7BF41CF91EE3D1B8ECF579F.NASL
    description Mozilla Foundation reports : MFSA 2016-39 Miscellaneous memory safety hazards (rv:46.0 / rv:45.1 / rv:38.8) MFSA 2016-42 Use-after-free and buffer overflow in Service Workers MFSA 2016-44 Buffer overflow in libstagefright with CENC offsets MFSA 2016-45 CSP not applied to pages sent with multipart/x-mixed-replace MFSA 2016-46 Elevation of privilege with chrome.tabs.update API in web extensions MFSA 2016-47 Write to invalid HashMap entry through JavaScript.watch() MFSA 2016-48 Firefox Health Reports could accept events from untrusted domains
    last seen 2019-02-21
    modified 2018-11-21
    plugin id 90741
    published 2016-04-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90741
    title FreeBSD : mozilla -- multiple vulnerabilities (92d44f83-a7bf-41cf-91ee-3d1b8ecf579f)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201701-15.NASL
    description The remote host is affected by the vulnerability described in GLSA-201701-15 (Mozilla Firefox, Thunderbird: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Mozilla Firefox and Thunderbird. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition via multiple vectors. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2017-01-27
    plugin id 96276
    published 2017-01-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96276
    title GLSA-201701-15 : Mozilla Firefox, Thunderbird: Multiple vulnerabilities (SWEET32)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-541.NASL
    description This update to Mozilla Firefox 46.0 fixes several security issues and bugs (boo#977333). The following vulnerabilities were fixed : - CVE-2016-2804: Miscellaneous memory safety hazards - MFSA 2016-39 (boo#977373) - CVE-2016-2806: Miscellaneous memory safety hazards - MFSA 2016-39 (boo#977375) - CVE-2016-2807: Miscellaneous memory safety hazards - MFSA 2016-39 (boo#977376) - CVE-2016-2808: Write to invalid HashMap entry through JavaScript.watch() - MFSA 2016-47 (boo#977386) - CVE-2016-2811: Use-after-free in Service Worker - MFSA 2016-42 (boo#977379) - CVE-2016-2812: Buffer overflow in Service Worker - MFSA 2016-42 (boo#977379) - CVE-2016-2814: Buffer overflow in libstagefright with CENC offsets - MFSA 2016-44 (boo#977381) - CVE-2016-2816: CSP not applied to pages sent with multipart/x-mixed-replace - MFSA 2016-45 (boo#977382) - CVE-2016-2817: Elevation of privilege with chrome.tabs.update API in web extensions - MFSA 2016-46 (boo#977384) - CVE-2016-2820: Firefox Health Reports could accept events from untrusted domains - MFSA 2016-48 (boo#977388) The following miscellaneous changes are included : - Improved security of the JavaScript Just In Time (JIT) Compiler - WebRTC fixes to improve performance and stability - Added support for document.elementsFromPoint - Added HKDF support for Web Crypto API The following changes from Mozilla Firefox 45.0.2 are included : - Fix an issue impacting the cookie header when third-party cookies are blocked - Fix a web compatibility regression impacting the srcset attribute of the image tag - Fix a crash impacting the video playback with Media Source Extension - Fix a regression impacting some specific uploads - Fix a regression with the copy and paste with some old versions of some Gecko applications like Thunderbird The following changes from Mozilla Firefox 45.0.2 are included : - Fix a regression causing search engine settings to be lost in some context - Bring back non-standard jar: URIs to fix a regression in IBM iNotes - XSLTProcessor.importStylesheet was failing when import was used - Fix an issue which could cause the list of search provider to be empty - Fix a regression when using the location bar (bmo#1254503) - Fix some loading issues when Accept third-party cookies: was set to Never - Disabled Graphite font shaping library The minimum requirements increased to NSPR 4.12 and NSS 3.22.3. Mozilla NSS was updated to 3.22.3 as a dependency for Mozilla Firefox 46.0, with the following changes : - Increase compatibility of TLS extended master secret, don't send an empty TLS extension last in the handshake (bmo#1243641) - RSA-PSS signatures are now supported - Pseudorandom functions based on hashes other than SHA-1 are now supported - Enforce an External Policy on NSS from a config file
    last seen 2019-02-21
    modified 2016-10-13
    plugin id 90932
    published 2016-05-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90932
    title openSUSE Security Update : MozillaFirefox / mozilla-nss (openSUSE-2016-541)
  • NASL family MacOS X Local Security Checks
    NASL id MACOSX_FIREFOX_46.NASL
    description The version of Firefox installed on the remote Mac OS X host is prior to 46. It is, therefore, affected by multiple vulnerabilities : - Multiple memory corruption issues exist that allow an attacker to corrupt memory, resulting in the execution of arbitrary code. (CVE-2016-2804, CVE-2016-2806, CVE-2016-2807) - A flaw exists due to improper validation of user-supplied input when handling the 32-bit generation count of the underlying HashMap. A context-dependent attacker can exploit this to cause a buffer overflow condition, resulting in a denial of service or the execution of arbitrary code. (CVE-2016-2808) - A remote code execution vulnerability exists due to a use-after-free error in the BeginReading() function. A context-dependent attacker can exploit this to dereference already freed memory, resulting in the execution of arbitrary code. (CVE-2016-2811) - A remote code execution vulnerability exists due to a race condition in ServiceWorkerManager in the get() function. A context-dependent attacker can exploit this to execute arbitrary code. (CVE-2016-2812) - A heap buffer overflow condition exists in the Google Stagefright component due to improper validation of user-supplied input when handling CENC offsets and the sizes table. A context-dependent attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-2814) - A security bypass vulnerability exists due to the Content Security Policy (CSP) not being properly applied to web content sent with the 'multipart/x-mixed-replace' MIME-type. A context-dependent attacker can exploit this to bypass CSP protection. (CVE-2016-2816) - A cross-site scripting (XSS) vulnerability exists due to improper restriction of unprivileged 'javascript: URL' navigation. A context-dependent attacker can exploit this, via a specially crafted request, to execute arbitrary script code in the context of a user's browser session. (CVE-2016-2817) - A flaw exists in the Firefox Health Report that is triggered when it accepts any content document events that are presented in its iframe. A context-dependent attacker can exploit this to manipulate sharing preferences. (CVE-2016-2820)
    last seen 2019-02-21
    modified 2018-07-14
    plugin id 90790
    published 2016-04-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90790
    title Firefox < 46 Multiple Vulnerabilities (Mac OS X)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2936-2.NASL
    description USN-2936-1 fixed vulnerabilities in Firefox. The update caused Firefox to crash on startup with the Oxygen GTK theme due to a pre-existing bug in the Oxygen-GTK3 theme engine. This update fixes the problem. We apologize for the inconvenience. Christian Holler, Tyson Smith, Phil Ringalda, Gary Kwong, Jesse Ruderman, Mats Palmgren, Carsten Book, Boris Zbarsky, David Bolter, Randell Jesup, Andrew McCreight, and Steve Fink discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2804, CVE-2016-2806, CVE-2016-2807) An invalid write was discovered when using the JavaScript .watch() method in some circumstances. 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 application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2808) Looben Yang discovered a use-after-free and buffer overflow in service workers. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2811, CVE-2016-2812) Sascha Just discovered a buffer overflow in libstagefright in some circumstances. 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 application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2016-2814) Muneaki Nishimura discovered that CSP is not applied correctly to web content sent with the multipart/x-mixed-replace MIME type. An attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks when they would otherwise be prevented. (CVE-2016-2816) Muneaki Nishimura discovered that the chrome.tabs.update API for web extensions allows for navigation to javascript: URLs. A malicious extension could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2016-2817) Mark Goodwin discovered that about:healthreport accepts certain events from any content present in the remote-report iframe. If another vulnerability allowed the injection of web content in the remote-report iframe, an attacker could potentially exploit this to change the user's sharing preferences. (CVE-2016-2820). 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 2019-02-21
    modified 2018-12-01
    plugin id 90855
    published 2016-05-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90855
    title Ubuntu 12.04 LTS : oxygen-gtk3 update (USN-2936-2)
refmap via4
confirm
gentoo GLSA-201701-15
sectrack 1035692
suse
  • openSUSE-SU-2016:1211
  • openSUSE-SU-2016:1251
ubuntu
  • USN-2936-1
  • USN-2936-2
  • USN-2936-3
Last major update 30-11-2016 - 22:09
Published 30-04-2016 - 13:59
Last modified 30-06-2017 - 21:29
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