CentOS 8 : firefox (CESA-2019:0966) - Nessus

Critical Plugin ID: 145595

This page contains detailed information about the CentOS 8 : firefox (CESA-2019:0966) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

hide

Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 145595
Name: CentOS 8 : firefox (CESA-2019:0966)
Filename: centos8_RHSA-2019-0966.nasl
Vulnerability Published: 2019-01-29
This Plugin Published: 2021-01-29
Last Modification Time: 2021-03-23
Plugin Version: 1.4
Plugin Type: local
Plugin Family: CentOS Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu, Host/local_checks_enabled

Vulnerability Information

Severity: Critical
Vulnerability Published: 2019-01-29
Patch Published: 2019-05-07
CVE [?]: CVE-2018-18506, CVE-2019-9788, CVE-2019-9790, CVE-2019-9791, CVE-2019-9792, CVE-2019-9793, CVE-2019-9795, CVE-2019-9796, CVE-2019-9810, CVE-2019-9813
CPE [?]: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:firefox
Exploited by Malware: True

Synopsis

The remote CentOS host is missing one or more security updates.

Description

The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2019:0966 advisory.

- Mozilla: Proxy Auto-Configuration file can define localhost access to be proxied (CVE-2018-18506)

- Mozilla: Memory safety bugs fixed in Firefox 66 and Firefox ESR 60.6 (CVE-2019-9788)

- Mozilla: Use-after-free when removing in-use DOM elements (CVE-2019-9790)

- Mozilla: Type inference is incorrect for constructors entered through on-stack replacement with IonMonkey (CVE-2019-9791)

- Mozilla: IonMonkey leaks JS_OPTIMIZED_OUT magic value to script (CVE-2019-9792)

- Mozilla: Improper bounds checks when Spectre mitigations are disabled (CVE-2019-9793)

- Mozilla: Type-confusion in IonMonkey JIT compiler (CVE-2019-9795)

- Mozilla: Use-after-free with SMIL animation controller (CVE-2019-9796)

- Mozilla: IonMonkey MArraySlice has incorrect alias information (CVE-2019-9810)

- Mozilla: Ionmonkey type confusion with __proto__ mutations (CVE-2019-9813)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected firefox package.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the CentOS 8 : firefox (CESA-2019:0966) vulnerability:

Exploit-DB: exploits/multiple/dos/46613.js
[EDB-46613: Spidermonkey - IonMonkey Type Inference is Incorrect for Constructors Entered via OSR]
Exploit-DB: exploits/multiple/dos/46646.txt
[EDB-46646: SpiderMonkey - IonMonkey Compiled Code Fails to Update Inferred Property Types (Type Confusion)]
Exploit-DB: exploits/multiple/dos/46939.txt
[EDB-46939: Spidermonkey - IonMonkey Leaks JS_OPTIMIZED_OUT Magic Value to Script]
Exploit-DB: exploits/windows_x86-64/local/47752.js
[EDB-47752: Mozilla FireFox (Windows 10 x64) - Full Chain Client Side Attack]
GitHub: https://github.com/Sp0pielar/CVE-2019-9791
[CVE-2019-9791: Exploit chain for CVE-2019-9791 & CVE-2019-11708 against firefox 65.0 on windows ...]
GitHub: https://github.com/ZihanYe/web-browser-vulnerabilities
[CVE-2019-9791]
GitHub: https://github.com/googleprojectzero/fuzzilli
[CVE-2019-9791]
GitHub: https://github.com/tunz/js-vuln-db
[CVE-2019-9791]
GitHub: https://github.com/ulexec/Exploits
[CVE-2019-9791]
GitHub: https://github.com/googleprojectzero/fuzzilli
[CVE-2019-9792]
GitHub: https://github.com/0vercl0k/0vercl0k
[CVE-2019-9810]
GitHub: https://github.com/ZihanYe/web-browser-vulnerabilities
[CVE-2019-9810]
GitHub: https://github.com/a0viedo/demystifying-js-engines
[CVE-2019-9810]
GitHub: https://github.com/b0o/starred
[CVE-2019-9810]
GitHub: https://github.com/fengjixuchui/Just-pwn-it-for-fun
[CVE-2019-9810]
GitHub: https://github.com/lp008/Hack-readme
[CVE-2019-9810]
GitHub: https://github.com/m1ghtym0/browser-pwn
[CVE-2019-9810]
GitHub: https://github.com/mgaudet/SpiderMonkeyBibliography
[CVE-2019-9810]
GitHub: https://github.com/tunnelshade/cve-2019-11707
[CVE-2019-9810]
GitHub: https://github.com/ZihanYe/web-browser-vulnerabilities
[CVE-2019-9813]
GitHub: https://github.com/googleprojectzero/fuzzilli
[CVE-2019-9813]
GitHub: https://github.com/tunz/js-vuln-db
[CVE-2019-9813]
GitHub: https://github.com/offensive-security/exploitdb-bin-sploits/blob/master/bin-sploits/47752.zip
[EDB-47752]
GitHub: https://github.com/0vercl0k/CVE-2019-11708
[CVE-2019-9810: Full exploit chain (CVE-2019-11708 & CVE-2019-9810) against Firefox on Windows ...]
GitHub: https://github.com/0vercl0k/CVE-2019-9810
[CVE-2019-9810: Exploit for CVE-2019-9810 Firefox on Windows 64-bit.]
GitHub: https://github.com/xuechiyaobai/CVE-2019-9810-PoC
[CVE-2019-9810: Array.prototype.slice wrong alias information.]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS Score Source [?]: CVE-2019-9796
CVSS V2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.5 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.5 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	9.4 (Critical)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.4 (Critical)

Go back to menu.

Plugin Source

##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# Red Hat Security Advisory RHSA-2019:0966. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(145595);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/23");

  script_cve_id(
    "CVE-2018-18506",
    "CVE-2019-9788",
    "CVE-2019-9790",
    "CVE-2019-9791",
    "CVE-2019-9792",
    "CVE-2019-9793",
    "CVE-2019-9795",
    "CVE-2019-9796",
    "CVE-2019-9810",
    "CVE-2019-9813"
  );
  script_bugtraq_id(106773, 107487, 107548);
  script_xref(name:"RHSA", value:"2019:0966");

  script_name(english:"CentOS 8 : firefox (CESA-2019:0966)");
  script_summary(english:"Checks the rpm output for the updated package");

  script_set_attribute(attribute:"synopsis", value:
"The remote CentOS host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the
CESA-2019:0966 advisory.

  - Mozilla: Proxy Auto-Configuration file can define localhost access to be proxied (CVE-2018-18506)

  - Mozilla: Memory safety bugs fixed in Firefox 66 and Firefox ESR 60.6 (CVE-2019-9788)

  - Mozilla: Use-after-free when removing in-use DOM elements (CVE-2019-9790)

  - Mozilla: Type inference is incorrect for constructors entered through on-stack replacement with IonMonkey
    (CVE-2019-9791)

  - Mozilla: IonMonkey leaks JS_OPTIMIZED_OUT magic value to script (CVE-2019-9792)

  - Mozilla: Improper bounds checks when Spectre mitigations are disabled (CVE-2019-9793)

  - Mozilla: Type-confusion in IonMonkey JIT compiler (CVE-2019-9795)

  - Mozilla: Use-after-free with SMIL animation controller (CVE-2019-9796)

  - Mozilla: IonMonkey MArraySlice has incorrect alias information (CVE-2019-9810)

  - Mozilla: Ionmonkey type confusion with __proto__ mutations (CVE-2019-9813)

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://access.redhat.com/errata/RHSA-2019:0966");
  script_set_attribute(attribute:"solution", value:
"Update the affected firefox package.");
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-9796");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:firefox");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CentOS Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list", "Host/cpu");

  exit(0);
}


include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item('Host/CentOS/release');
if (isnull(release) || 'CentOS' >!< release) audit(AUDIT_OS_NOT, 'CentOS');
os_ver = pregmatch(pattern: "CentOS(?: Stream)?(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CentOS');
os_ver = os_ver[1];
if ('CentOS Stream' >< release) audit(AUDIT_OS_NOT, 'CentOS 8.x', 'CentOS Stream ' + os_ver);
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'CentOS 8.x', 'CentOS ' + os_ver);

if (!get_kb_item('Host/CentOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CentOS', cpu);

pkgs = [
    {'reference':'firefox-60.6.1-1.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
    {'reference':'firefox-60.6.1-1.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE}
];

flag = 0;
foreach package_array ( pkgs ) {
  reference = NULL;
  release = NULL;
  sp = NULL;
  cpu = NULL;
  el_string = NULL;
  rpm_spec_vers_cmp = NULL;
  epoch = NULL;
  allowmaj = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) release = 'CentOS-' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (reference && release) {
    if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'firefox');
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/centos8_RHSA-2019-0966.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\centos8_RHSA-2019-0966.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/centos8_RHSA-2019-0966.nasl

Go back to menu.

How to Run

Here is how to run the CentOS 8 : firefox (CESA-2019:0966) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select CentOS Local Security Checks plugin family.
On the right side table select CentOS 8 : firefox (CESA-2019:0966) plugin ID 145595.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl centos8_RHSA-2019-0966.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a centos8_RHSA-2019-0966.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - centos8_RHSA-2019-0966.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state centos8_RHSA-2019-0966.nasl -t <IP/HOST>

Go back to menu.

References

BID | SecurityFocus Bugtraq ID:

106773, 107487, 107548

RHSA | Red Hat Security Advisory:

2019:0966

See also:

Similar and related Nessus plugins:

121511 - Mozilla Firefox < 65.0
121512 - Mozilla Firefox < 65.0
127257 - NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2019-0062)
127260 - NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2019-0064)
127308 - NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2019-0090)
127318 - NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2019-0095)
127319 - NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2019-0095)
127427 - NewStart CGSL MAIN 4.05 : firefox Multiple Vulnerabilities (NS-SA-2019-0153)
127459 - NewStart CGSL MAIN 4.05 : thunderbird Multiple Vulnerabilities (NS-SA-2019-0169)
124662 - RHEL 8 : firefox (RHSA-2019:0966)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file centos8_RHSA-2019-0966.nasl version 1.4. For more plugins, visit the Nessus Plugin Library.

Go back to menu.

CentOS 8 : firefox (CESA-2019:0966) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

Nessus Plugin Library

Solving Problems with Office 365 Email from GoDaddy

Empire Module Library

CrackMapExec Module Library

Metasploit Android Modules

Top 16 Active Directory Vulnerabilities

Top 10 Vulnerabilities: Internal Infrastructure Pentest

Terminal Escape Injection

Cisco Password Cracking and Decrypting Guide

Capture Passwords using Wireshark

SSH Brute Force Attack Tool using PuTTY / Plink (ssh-putty-brute.ps1)

SMB Brute Force Attack Tool in PowerShell (SMBLogin.ps1)

Port Scanner in PowerShell (TCP/UDP)

Nessus CSV Parser and Extractor

Default Password Scanner (default-http-login-hunter.sh)