6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.003 Low
EPSS
Percentile
70.7%
The version of Firefox installed on the remote macOS or Mac OS X host is prior to 89.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-23 advisory.
A malicious website that causes an HTTP Authentication dialog to be spawned could trick the built-in password manager to suggest passwords for the currently active website instead of the website that triggered the dialog. This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29965)
Firefox used to cache the last filename used for printing a file. When generating a filename for printing, Firefox usually suggests the web page title. The caching and suggestion techniques combined may have lead to the title of a website visited during private browsing mode being stored on disk. (CVE-2021-29960)
When styling and rendering an oversized `` element, Firefox did not apply correct clipping which allowed an attacker to paint over the user interface. (CVE-2021-29961)
Address bar search suggestions in private browsing mode were re-using session data from normal mode.
This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29963)
A locally-installed hostile program could send WMCOPYDATA
messages that Firefox would process incorrectly, leading to an out-of-bounds read. This bug only affects Firefox on Windows. Other operating systems are unaffected. (CVE-2021-29964)
When a user has already allowed a website to access microphone and camera, disabling camera sharing would not fully prevent the website from re-enabling it without an additional prompt. This was only possible if the website kept recording with the microphone until re-enabling the camera. (CVE-2021-29959)
Firefox for Android would become unstable and hard-to-recover when a website opened too many popups.
This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29962)
Mozilla developers Christian Holler, Anny Gakhokidze, Alexandru Michis, Gabriele Svelto reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2021-29967)
Mozilla developers Christian Holler, Tooru Fujisawa, Tyson Smith reported memory safety bugs present in Firefox 88. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2021-29966)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2021-23.
# The text itself is copyright (C) Mozilla Foundation.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(150120);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/09/10");
script_cve_id(
"CVE-2021-29959",
"CVE-2021-29960",
"CVE-2021-29961",
"CVE-2021-29962",
"CVE-2021-29963",
"CVE-2021-29964",
"CVE-2021-29965",
"CVE-2021-29966",
"CVE-2021-29967"
);
script_xref(name:"IAVA", value:"2021-A-0264-S");
script_name(english:"Mozilla Firefox < 89.0");
script_set_attribute(attribute:"synopsis", value:
"A web browser installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The version of Firefox installed on the remote macOS or Mac OS X host is prior to 89.0. It is, therefore, affected by
multiple vulnerabilities as referenced in the mfsa2021-23 advisory.
- A malicious website that causes an HTTP Authentication dialog to be spawned could trick the built-in
password manager to suggest passwords for the currently active website instead of the website that
triggered the dialog. This bug only affects Firefox for Android. Other operating systems are
unaffected. (CVE-2021-29965)
- Firefox used to cache the last filename used for printing a file. When generating a filename for printing,
Firefox usually suggests the web page title. The caching and suggestion techniques combined may have lead
to the title of a website visited during private browsing mode being stored on disk. (CVE-2021-29960)
- When styling and rendering an oversized `` element, Firefox did not apply correct clipping which
allowed an attacker to paint over the user interface. (CVE-2021-29961)
- Address bar search suggestions in private browsing mode were re-using session data from normal mode.
This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29963)
- A locally-installed hostile program could send `WMCOPYDATA` messages that Firefox would process
incorrectly, leading to an out-of-bounds read. This bug only affects Firefox on Windows. Other
operating systems are unaffected. (CVE-2021-29964)
- When a user has already allowed a website to access microphone and camera, disabling camera sharing would
not fully prevent the website from re-enabling it without an additional prompt. This was only possible if
the website kept recording with the microphone until re-enabling the camera. (CVE-2021-29959)
- Firefox for Android would become unstable and hard-to-recover when a website opened too many popups.
This bug only affects Firefox for Android. Other operating systems are unaffected. (CVE-2021-29962)
- Mozilla developers Christian Holler, Anny Gakhokidze, Alexandru Michis, Gabriele Svelto reported memory
safety bugs present in Firefox 88 and Firefox ESR 78.11. Some of these bugs showed evidence of memory
corruption and we presume that with enough effort some of these could have been exploited to run arbitrary
code. (CVE-2021-29967)
- Mozilla developers Christian Holler, Tooru Fujisawa, Tyson Smith reported memory safety bugs present in
Firefox 88. Some of these bugs showed evidence of memory corruption and we presume that with enough effort
some of these could have been exploited to run arbitrary code. (CVE-2021-29966)
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/mfsa2021-23/");
script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox version 89.0 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/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-2021-29967");
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:"2021/06/01");
script_set_attribute(attribute:"patch_publication_date", value:"2021/06/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/01");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"MacOS X Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("macosx_firefox_installed.nasl");
script_require_keys("MacOSX/Firefox/Installed");
exit(0);
}
include('mozilla_version.inc');
kb_base = 'MacOSX/Firefox';
get_kb_item_or_exit(kb_base+'/Installed');
version = get_kb_item_or_exit(kb_base+'/Version', exit_code:1);
path = get_kb_item_or_exit(kb_base+'/Path', exit_code:1);
is_esr = get_kb_item(kb_base+'/is_esr');
if (is_esr) exit(0, 'The Mozilla Firefox installation is in the ESR branch.');
mozilla_check_version(version:version, path:path, product:'firefox', esr:FALSE, fix:'89.0', severity:SECURITY_WARNING);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29959
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29960
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29961
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29962
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29963
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29964
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29965
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29966
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29967
www.mozilla.org/en-US/security/advisories/mfsa2021-23/
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.003 Low
EPSS
Percentile
70.7%