7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
AI Score
Confidence
High
0.722 High
EPSS
Percentile
98.1%
The version of Firefox installed on the remote Windows host is prior to 68.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-21 advisory.
As part of his winning Pwn2Own entry, Niklas Baumstark demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation. (CVE-2019-9811)
When an inner window is reused, it does not consider the use of document.domain for cross-origin protections. If pages on different subdomains ever cooperatively use document.domain, then either page can abuse this to inject script into arbitrary pages on the other subdomain, even those that did not use document.domain to relax their origin security. (CVE-2019-11711)
POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements. This can allow an attacker to perform Cross-Site Request Forgery (CSRF) attacks.
(CVE-2019-11712)
A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash.
(CVE-2019-11713)
Necko can access a child on the wrong thread during UDP connections, resulting in a potentially exploitable crash in some instances. (CVE-2019-11714)
Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used.
(CVE-2019-11729)
Due to an error while parsing page content, it is possible for properly sanitized user input to be misinterpreted and lead to XSS hazards on web sites in certain circumstances. (CVE-2019-11715)
Until explicitly accessed by script, window.globalThis is not enumerable and, as a result, is not visible to code such as Object.getOwnPropertyNames(window). Sites that deploy a sandboxing that depends on enumerating and freezing access to the window object may miss this, allowing their sandboxes to be bypassed.
(CVE-2019-11716)
A vulnerability exists where the caret (^) character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes. (CVE-2019-11717)
Activity Stream can display content from sent from the Snippet Service website. This content is written to innerHTML on the Activity Stream page without sanitization, allowing for a potential access to other information available to the Activity Stream, such as browsing history, if the Snipper Service were compromised. (CVE-2019-11718)
When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. (CVE-2019-11719)
Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering. (CVE-2019-11720)
The unicode latin ‘kra’ character can be used to spoof a standard ‘k’ character in the addressbar. This allows for domain spoofing attacks as do not display as punycode text, allowing for user confusion.
(CVE-2019-11721)
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. Luigi Gubello 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. (CVE-2019-11730)
A vulnerability exists during the installation of add- ons where the initial fetch ignored the origin attributes of the browsing context. This could leak cookies in private browsing mode or across different containers for people who use the Firefox Multi- Account Containers Web Extension. (CVE-2019-11723)
Application permissions give additional remote troubleshooting permission to the site input.mozilla.org, which has been retired and now redirects to another site. This additional permission is unnecessary and is a potential vector for malicious attacks. (CVE-2019-11724)
When a user navigates to site marked as unsafe by the Safebrowsing API, warning messages are displayed and navigation is interrupted but resources from the same site loaded through websockets are not blocked, leading to the loading of unsafe resources and bypassing safebrowsing protections. (CVE-2019-11725)
A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3.
PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. (CVE-2019-11727)
The HTTP Alternative Services header, Alt- Svc, can be used by a malicious site to scan all TCP ports of any host that the accessible to a user when web content is loaded. (CVE-2019-11728)
Mozilla developers and community members Andr Bargull, Christian Holler, Natalia Csoregi, Raul Gurzau, Daniel Varga, Jon Coppeard, Marcia Knous, Gary Kwong, Randell Jesup, David Bolter, Jeff Gilbert, and Deian Stefan reported memory safety bugs present in Firefox 67. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.
(CVE-2019-11710)
Mozilla developers and community members Andreea Pavel, Christian Holler, Honza Bambas, Jason Kratzer, and Jeff Gilbert reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. (CVE-2019-11709)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2019-21.
# The text itself is copyright (C) Mozilla Foundation.
include('compat.inc');
if (description)
{
script_id(126622);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/10");
script_cve_id(
"CVE-2019-9811",
"CVE-2019-11709",
"CVE-2019-11710",
"CVE-2019-11711",
"CVE-2019-11712",
"CVE-2019-11713",
"CVE-2019-11714",
"CVE-2019-11715",
"CVE-2019-11716",
"CVE-2019-11717",
"CVE-2019-11718",
"CVE-2019-11719",
"CVE-2019-11720",
"CVE-2019-11721",
"CVE-2019-11723",
"CVE-2019-11724",
"CVE-2019-11725",
"CVE-2019-11727",
"CVE-2019-11728",
"CVE-2019-11729",
"CVE-2019-11730"
);
script_bugtraq_id(
109081,
109083,
109084,
109085,
109086,
109087
);
script_xref(name:"MFSA", value:"2019-21");
script_name(english:"Mozilla Firefox < 68.0");
script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote Windows host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The version of Firefox installed on the remote Windows host is prior to 68.0. It is, therefore, affected by multiple
vulnerabilities as referenced in the mfsa2019-21 advisory.
- As part of his winning Pwn2Own entry, Niklas Baumstark
demonstrated a sandbox escape by installing a malicious
language pack and then opening a browser feature that
used the compromised translation. (CVE-2019-9811)
- When an inner window is reused, it does not consider the
use of document.domain for cross-origin
protections. If pages on different subdomains ever
cooperatively use document.domain, then
either page can abuse this to inject script into
arbitrary pages on the other subdomain, even those that
did not use document.domain to relax their
origin security. (CVE-2019-11711)
- POST requests made by NPAPI plugins, such as Flash, that
receive a status 308 redirect response can bypass CORS
requirements. This can allow an attacker to perform
Cross-Site Request Forgery (CSRF) attacks.
(CVE-2019-11712)
- A use-after-free vulnerability can occur in HTTP/2 when
a cached HTTP/2 stream is closed while still in use,
resulting in a potentially exploitable crash.
(CVE-2019-11713)
- Necko can access a child on the wrong thread during UDP
connections, resulting in a potentially exploitable
crash in some instances. (CVE-2019-11714)
- Empty or malformed p256-ECDH public keys may trigger a
segmentation fault due values being improperly sanitized
before being copied into memory and used.
(CVE-2019-11729)
- Due to an error while parsing page content, it is
possible for properly sanitized user input to be
misinterpreted and lead to XSS hazards on web sites in
certain circumstances. (CVE-2019-11715)
- Until explicitly accessed by script,
window.globalThis is not enumerable and, as
a result, is not visible to code such as
Object.getOwnPropertyNames(window). Sites
that deploy a sandboxing that depends on enumerating and
freezing access to the window object may miss this,
allowing their sandboxes to be bypassed.
(CVE-2019-11716)
- A vulnerability exists where the caret (^) character
is improperly escaped constructing some URIs due to it
being used as a separator, allowing for possible
spoofing of origin attributes. (CVE-2019-11717)
- Activity Stream can display content from sent from the
Snippet Service website. This content is written to
innerHTML on the Activity Stream page
without sanitization, allowing for a potential access to
other information available to the Activity Stream, such
as browsing history, if the Snipper Service were
compromised. (CVE-2019-11718)
- When importing a curve25519 private key in PKCS#8format
with leading 0x00 bytes, it is possible to trigger an
out-of-bounds read in the Network Security Services
(NSS) library. This could lead to information
disclosure. (CVE-2019-11719)
- Some unicode characters are incorrectly treated as
whitespace during the parsing of web content instead of
triggering parsing errors. This allows malicious code to
then be processed, evading cross-site scripting (XSS)
filtering. (CVE-2019-11720)
- The unicode latin 'kra' character can be used to spoof a
standard 'k' character in the addressbar. This allows
for domain spoofing attacks as do not display as
punycode text, allowing for user confusion.
(CVE-2019-11721)
- 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. Luigi Gubello 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. (CVE-2019-11730)
- A vulnerability exists during the installation of add-
ons where the initial fetch ignored the origin
attributes of the browsing context. This could leak
cookies in private browsing mode or across different
containers for people who use the Firefox Multi-
Account Containers Web Extension. (CVE-2019-11723)
- Application permissions give additional remote
troubleshooting permission to the site
input.mozilla.org, which has been retired and now
redirects to another site. This additional permission is
unnecessary and is a potential vector for malicious
attacks. (CVE-2019-11724)
- When a user navigates to site marked as unsafe by the
Safebrowsing API, warning messages are displayed and
navigation is interrupted but resources from the same
site loaded through websockets are not blocked, leading
to the loading of unsafe resources and bypassing
safebrowsing protections. (CVE-2019-11725)
- A vulnerability exists where it possible to force
Network Security Services (NSS) to sign
CertificateVerify with PKCS#1 v1.5
signatures when those are the only ones advertised by
server in CertificateRequest in TLS 1.3.
PKCS#1 v1.5 signatures should not be used for TLS 1.3
messages. (CVE-2019-11727)
- The HTTP Alternative Services header, Alt-
Svc, can be used by a malicious site to scan all
TCP ports of any host that the accessible to a user when
web content is loaded. (CVE-2019-11728)
- Mozilla developers and community members Andr Bargull,
Christian Holler, Natalia Csoregi, Raul Gurzau, Daniel
Varga, Jon Coppeard, Marcia Knous, Gary Kwong, Randell
Jesup, David Bolter, Jeff Gilbert, and Deian Stefan
reported memory safety bugs present in Firefox 67. Some
of these bugs showed evidence of memory corruption and
we presume that with enough effort that some of these
could be exploited to run arbitrary code.
(CVE-2019-11710)
- Mozilla developers and community members Andreea Pavel,
Christian Holler, Honza Bambas, Jason Kratzer, and Jeff
Gilbert reported memory safety bugs present in Firefox
67 and Firefox ESR 60.7. Some of these bugs showed
evidence of memory corruption and we presume that with
enough effort that some of these could be exploited to
run arbitrary code. (CVE-2019-11709)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/");
script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox version 68.0 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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11716");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-11714");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/09");
script_set_attribute(attribute:"patch_publication_date", value:"2019/07/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/11");
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) 2019-2024 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:'68.0', xss:TRUE, severity:SECURITY_HOLE);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11709
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11710
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11711
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11712
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11713
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11714
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11715
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11716
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11717
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11718
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11719
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11720
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11721
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11723
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11724
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11725
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11727
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11728
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11729
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11730
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9811
www.mozilla.org/en-US/security/advisories/mfsa2019-21/
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
AI Score
Confidence
High
0.722 High
EPSS
Percentile
98.1%