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Vulnerability Details : CVE-2019-11730

A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination with a popular Android messaging app, if a malicious HTML attachment is sent to a user and they opened that attachment in Firefox, due to that app's predictable pattern for locally-saved file names, it is possible to read attachments the victim received from other correspondents. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Publish Date : 2019-07-23 Last Update Date : 2020-08-24
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID CWE id is not defined for this vulnerability

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:1763: firefox security update (Critical) oval:com.redhat.rhsa:def:20191763 unix
RHSA-2019:1764: firefox security update (Critical) oval:com.redhat.rhsa:def:20191764 unix
RHSA-2019:1765: firefox security update (Critical) oval:com.redhat.rhsa:def:20191765 unix
RHSA-2019:1775: thunderbird security update (Important) oval:com.redhat.rhsa:def:20191775 unix
RHSA-2019:1777: thunderbird security update (Important) oval:com.redhat.rhsa:def:20191777 unix
RHSA-2019:1799: thunderbird security and bug fix update (Important) oval:com.redhat.rhsa:def:20191799 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2019-11730

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
2 Application Mozilla Firefox * * * * Version Details Vulnerabilities
3 Application Mozilla Firefox Esr * * * * Version Details Vulnerabilities
4 Application Mozilla Thunderbird * * * * Version Details Vulnerabilities
5 OS Opensuse Leap 15.0 * * * Version Details Vulnerabilities
6 OS Opensuse Leap 15.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Mozilla Firefox 1
Mozilla Firefox Esr 1
Mozilla Thunderbird 1
Opensuse Leap 2

- References For CVE-2019-11730
GENTOO GLSA-201908-20
MLIST [debian-lts-announce] 20190802 [SECURITY] [DLA 1869-1] firefox-esr security update
SUSE openSUSE-SU-2019:1990
GENTOO GLSA-201908-12
SUSE openSUSE-SU-2019:2248
MLIST [debian-lts-announce] 20190802 [SECURITY] [DLA 1870-1] thunderbird security update
SUSE openSUSE-SU-2019:1813
SUSE openSUSE-SU-2019:1811
SUSE openSUSE-SU-2019:2249

- Metasploit Modules Related To CVE-2019-11730

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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