Vulnerabilities > CVE-2019-11748 - Improper Preservation of Permissions vulnerability in Mozilla Firefox and Firefox ESR
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
NONE Availability impact
NONE Summary
WebRTC in Firefox will honor persisted permissions given to sites for access to microphone and camera resources even when in a third-party context. In light of recent high profile vulnerabilities in other software, a decision was made to no longer persist these permissions. This avoids the possibility of trusted WebRTC resources being invisibly embedded in web content and abusing permissions previously given by users. Users will now be prompted for permissions on each use. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2019-2663.NASL description An update for firefox is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. [Updated 24 September 2019] Previously, this erratum was marked as having a security impact of Critical. This was incorrect; the security impact of this erratum has been changed to Important, to correctly reflect the highest impact rating of CVE fixes included in this release. No changes have been made to the packages. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.1.0 ESR. Security Fix(es) : * Mozilla: Sandbox escape through Firefox Sync (CVE-2019-9812) * Mozilla: Memory safety bugs fixed in Firefox 69 and Firefox ESR 68.1 (CVE-2019-11735) * Mozilla: Memory safety bugs fixed in Firefox 69, Firefox ESR 68.1, and Firefox ESR 60.9 (CVE-2019-11740) * Mozilla: Same-origin policy violation with SVG filters and canvas to steal cross-origin images (CVE-2019-11742) * Mozilla: XSS by breaking out of title and textarea elements using innerHTML (CVE-2019-11744) * Mozilla: Use-after-free while manipulating video (CVE-2019-11746) * Mozilla: Use-after-free while extracting a key value in IndexedDB (CVE-2019-11752) * Mozilla: Cross-origin access to unload event attributes (CVE-2019-11743) * Mozilla: Persistence of WebRTC permissions in a third party context (CVE-2019-11748) * Mozilla: Camera information available without prompting using getUserMedia (CVE-2019-11749) * Mozilla: Type confusion in Spidermonkey (CVE-2019-11750) * Mozilla: Content security policy bypass through hash-based sources in directives (CVE-2019-11738) * Mozilla: last seen 2020-05-31 modified 2019-09-05 plugin id 128517 published 2019-09-05 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128517 title RHEL 8 : firefox (RHSA-2019:2663) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_05463E0AABD34FA4BD5FCD5ED132D4C6.NASL description Mozilla Foundation reports : CVE-2019-11751: Malicious code execution through command line parameters CVE-2019-11746: Use-after-free while manipulating video CVE-2019-11744: XSS by breaking out of title and textarea elements using innerHTML CVE-2019-11742: Same-origin policy violation with SVG filters and canvas to steal cross-origin images CVE-2019-11736: File manipulation and privilege escalation in Mozilla Maintenance Service CVE-2019-11753: Privilege escalation with Mozilla Maintenance Service in custom Firefox installation location CVE-2019-11752: Use-after-free while extracting a key value in IndexedDB CVE-2019-9812: Sandbox escape through Firefox Sync CVE-2019-11741: Isolate addons.mozilla.org and accounts.firefox.com CVE-2019-11743: Cross-origin access to unload event attributes CVE-2019-11748: Persistence of WebRTC permissions in a third party context CVE-2019-11749: Camera information available without prompting using getUserMedia CVE-2019-5849: Out-of-bounds read in Skia CVE-2019-11750: Type confusion in Spidermonkey CVE-2019-11737: Content security policy directives ignore port and path if host is a wildcard CVE-2019-11738: Content security policy bypass through hash-based sources in directives CVE-2019-11747: last seen 2020-06-01 modified 2020-06-02 plugin id 128491 published 2019-09-04 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128491 title FreeBSD : mozilla -- multiple vulnerabilities (05463e0a-abd3-4fa4-bd5f-cd5ed132d4c6) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-2251.NASL description This update for MozillaFirefox to 68.1 fixes the following issues : Security issues fixed : - CVE-2019-9811: Fixed a sandbox escape via installation of malicious language pack. (bsc#1140868) - CVE-2019-9812: Fixed a sandbox escape through Firefox Sync. (bsc#1149294) - CVE-2019-11710: Fixed several memory safety bugs. (bsc#1140868) - CVE-2019-11714: Fixed a potentially exploitable crash in Necko. (bsc#1140868) - CVE-2019-11716: Fixed a sandbox bypass. (bsc#1140868) - CVE-2019-11718: Fixed inadequate sanitation in the Activity Stream component. (bsc#1140868) - CVE-2019-11720: Fixed a character encoding XSS vulnerability. (bsc#1140868) - CVE-2019-11721: Fixed a homograph domain spoofing issue through unicode latin last seen 2020-06-01 modified 2020-06-02 plugin id 129664 published 2019-10-07 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129664 title openSUSE Security Update : MozillaFirefox (openSUSE-2019-2251) NASL family Windows NASL id MOZILLA_FIREFOX_69_0.NASL description The version of Firefox installed on the remote Windows host is prior to 69.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-25 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 128525 published 2019-09-05 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128525 title Mozilla Firefox < 69.0 NASL family MacOS X Local Security Checks NASL id MACOS_FIREFOX_69_0.NASL description The version of Firefox installed on the remote macOS or Mac OS X host is prior to 69.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-25 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 128524 published 2019-09-05 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128524 title Mozilla Firefox < 69.0 NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-2545-1.NASL description This update for MozillaFirefox to 68.1 fixes the following issues : Security issues fixed : CVE-2019-9811: Fixed a sandbox escape via installation of malicious language pack. (bsc#1140868) CVE-2019-9812: Fixed a sandbox escape through Firefox Sync. (bsc#1149294) CVE-2019-11710: Fixed several memory safety bugs. (bsc#1140868) CVE-2019-11714: Fixed a potentially exploitable crash in Necko. (bsc#1140868) CVE-2019-11716: Fixed a sandbox bypass. (bsc#1140868) CVE-2019-11718: Fixed inadequate sanitation in the Activity Stream component. (bsc#1140868) CVE-2019-11720: Fixed a character encoding XSS vulnerability. (bsc#1140868) CVE-2019-11721: Fixed a homograph domain spoofing issue through unicode latin last seen 2020-06-01 modified 2020-06-02 plugin id 129583 published 2019-10-04 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129583 title SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2019:2545-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-2620-1.NASL description This update for MozillaFirefox fixes the following issues : Updated to new ESR version 68.1 (bsc#1149323). In addition to the already fixed vulnerabilities released in previous ESR updates, the following were also fixed: CVE-2019-11751, CVE-2019-11736, CVE-2019-9812, CVE-2019-11748, CVE-2019-11749, CVE-2019-11750, CVE-2019-11738, CVE-2019-11747, CVE-2019-11735. Several run-time issues were also resolved (bsc#1117473, bsc#1124525, bsc#1133810). The version displayed in Help > About is now correct (bsc#1087200). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 129772 published 2019-10-10 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129772 title SUSE SLED12 / SLES12 Security Update : MozillaFirefox (SUSE-SU-2019:2620-1) NASL family Windows NASL id MOZILLA_FIREFOX_68_1_ESR.NASL description The version of Firefox ESR installed on the remote Windows host is prior to 68.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-26 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 128528 published 2019-09-05 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128528 title Mozilla Firefox ESR < 68.1 NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-4122-1.NASL description Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to obtain sensitive information, bypass Content Security Policy (CSP) protections, bypass same-origin restrictions, conduct cross-site scripting (XSS) attacks, cause a denial of service, or execute arbitrary code. (CVE-2019-5849, CVE-2019-11734, CVE-2019-11735, CVE-2019-11737, CVE-2019-11738, CVE-2019-11740, CVE-2019-11742, CVE-2019-11743, CVE-2019-11744, CVE-2019-11746, CVE-2019-11748, CVE-2019-11749, CVE-2019-11750, CVE-2019-11752) It was discovered that a compromised content process could log in to a malicious Firefox Sync account. An attacker could potentially exploit this, in combination with another vulnerability, to disable the sandbox. (CVE-2019-9812) It was discovered that addons.mozilla.org and accounts.firefox.com could be loaded in to the same content process. An attacker could potentially exploit this, in combination with another vulnerability that allowed a cross-site scripting (XSS) attack, to modify browser settings. (CVE-2019-11741) It was discovered that the last seen 2020-06-01 modified 2020-06-02 plugin id 128521 published 2019-09-05 reporter Ubuntu Security Notice (C) 2019 Canonical, Inc. / NASL script (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128521 title Ubuntu 16.04 LTS / 18.04 LTS / 19.04 : firefox vulnerabilities (USN-4122-1) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-2260.NASL description This update for MozillaFirefox to 68.1 fixes the following issues : Security issues fixed : - CVE-2019-9811: Fixed a sandbox escape via installation of malicious language pack. (bsc#1140868) - CVE-2019-9812: Fixed a sandbox escape through Firefox Sync. (bsc#1149294) - CVE-2019-11710: Fixed several memory safety bugs. (bsc#1140868) - CVE-2019-11714: Fixed a potentially exploitable crash in Necko. (bsc#1140868) - CVE-2019-11716: Fixed a sandbox bypass. (bsc#1140868) - CVE-2019-11718: Fixed inadequate sanitation in the Activity Stream component. (bsc#1140868) - CVE-2019-11720: Fixed a character encoding XSS vulnerability. (bsc#1140868) - CVE-2019-11721: Fixed a homograph domain spoofing issue through unicode latin last seen 2020-06-01 modified 2020-06-02 plugin id 129665 published 2019-10-07 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/129665 title openSUSE Security Update : MozillaFirefox (openSUSE-2019-2260) NASL family MacOS X Local Security Checks NASL id MACOS_FIREFOX_68_1_ESR.NASL description The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 68.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-26 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 128527 published 2019-09-05 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128527 title Mozilla Firefox ESR < 68.1 NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2019-2663.NASL description From Red Hat Security Advisory 2019:2663 : An update for firefox is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. [Updated 24 September 2019] Previously, this erratum was marked as having a security impact of Critical. This was incorrect; the security impact of this erratum has been changed to Important, to correctly reflect the highest impact rating of CVE fixes included in this release. No changes have been made to the packages. Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 68.1.0 ESR. Security Fix(es) : * Mozilla: Sandbox escape through Firefox Sync (CVE-2019-9812) * Mozilla: Memory safety bugs fixed in Firefox 69 and Firefox ESR 68.1 (CVE-2019-11735) * Mozilla: Memory safety bugs fixed in Firefox 69, Firefox ESR 68.1, and Firefox ESR 60.9 (CVE-2019-11740) * Mozilla: Same-origin policy violation with SVG filters and canvas to steal cross-origin images (CVE-2019-11742) * Mozilla: XSS by breaking out of title and textarea elements using innerHTML (CVE-2019-11744) * Mozilla: Use-after-free while manipulating video (CVE-2019-11746) * Mozilla: Use-after-free while extracting a key value in IndexedDB (CVE-2019-11752) * Mozilla: Cross-origin access to unload event attributes (CVE-2019-11743) * Mozilla: Persistence of WebRTC permissions in a third party context (CVE-2019-11748) * Mozilla: Camera information available without prompting using getUserMedia (CVE-2019-11749) * Mozilla: Type confusion in Spidermonkey (CVE-2019-11750) * Mozilla: Content security policy bypass through hash-based sources in directives (CVE-2019-11738) * Mozilla: last seen 2020-05-31 modified 2019-09-09 plugin id 128599 published 2019-09-09 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/128599 title Oracle Linux 8 : firefox (ELSA-2019-2663)
Redhat
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References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1564588
- https://www.mozilla.org/security/advisories/mfsa2019-25/
- https://www.mozilla.org/security/advisories/mfsa2019-26/