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
9.6 High
AI Score
Confidence
High
0.014 Low
EPSS
Percentile
86.4%
The version of Firefox ESR installed on the remote Windows host is prior to 68.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2019-37 advisory, including the following:
When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. (CVE-2019-11745)
When using nested workers, a use-after-free could occur during worker destruction. This resulted in a potentially exploitable crash. (CVE-2019-17008)
Mozilla developers Christoph Diehl, Nathan Froyd, Jason Kratzer, Christian Holler, Karl Tomlinson, Tyson Smith reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. 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-2019-17012)
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 mfsa2019-37.
# The text itself is copyright (C) Mozilla Foundation.
include('compat.inc');
if (description)
{
script_id(131767);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/05");
script_cve_id(
"CVE-2019-11745",
"CVE-2019-13722",
"CVE-2019-17005",
"CVE-2019-17008",
"CVE-2019-17009",
"CVE-2019-17010",
"CVE-2019-17011",
"CVE-2019-17012"
);
script_xref(name:"MFSA", value:"2019-37");
script_name(english:"Mozilla Firefox ESR 68.x < 68.3 Multiple vulnerabilities");
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 ESR installed on the remote Windows host is prior to 68.3. It is, therefore, affected by
multiple vulnerabilities as referenced in the mfsa2019-37 advisory, including the following:
- When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the
block size, a small out of bounds write could occur. This could have caused heap corruption and a
potentially exploitable crash. (CVE-2019-11745)
- When using nested workers, a use-after-free could occur during worker destruction. This resulted in a
potentially exploitable crash. (CVE-2019-17008)
- Mozilla developers Christoph Diehl, Nathan Froyd, Jason Kratzer, Christian Holler, Karl Tomlinson, Tyson
Smith reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. 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-2019-17012)
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/mfsa2019-37/");
script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Firefox ESR version 68.3 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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17012");
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:"2019/12/03");
script_set_attribute(attribute:"patch_publication_date", value:"2019/12/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/06");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:firefox_esr");
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:TRUE, fix:'68.3', min:'68.0.0', severity:SECURITY_WARNING);
Vendor | Product | Version | CPE |
---|---|---|---|
mozilla | firefox_esr | cpe:/a:mozilla:firefox_esr |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11745
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13722
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17005
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17008
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17009
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17010
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17011
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17012
www.mozilla.org/en-US/security/advisories/mfsa2019-37/
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
9.6 High
AI Score
Confidence
High
0.014 Low
EPSS
Percentile
86.4%