CentOS 6 / 7 : firefox (CESA-2018:0122)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:0122 and 
# CentOS Errata and Security Advisory 2018:0122 respectively.
#

include("compat.inc");

if (description)
{
  script_id(106317);
  script_version("1.13");
  script_cvs_date("Date: 2020/02/18");

  script_cve_id("CVE-2018-5089", "CVE-2018-5091", "CVE-2018-5095", "CVE-2018-5096", "CVE-2018-5097", "CVE-2018-5098", "CVE-2018-5099", "CVE-2018-5102", "CVE-2018-5103", "CVE-2018-5104", "CVE-2018-5117");
  script_xref(name:"RHSA", value:"2018:0122");

  script_name(english:"CentOS 6 / 7 : firefox (CESA-2018:0122)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for firefox is now available for Red Hat Enterprise Linux 6
and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Critical. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser.

This update upgrades Firefox to version 52.6.0 ESR.

Security Fix(es) :

* Multiple flaws were found in the processing of malformed web
content. A web page containing malicious content could cause Firefox
to crash or, potentially, execute arbitrary code with the privileges
of the user running Firefox. (CVE-2018-5089, CVE-2018-5091,
CVE-2018-5095, CVE-2018-5096, CVE-2018-5097, CVE-2018-5098,
CVE-2018-5099, CVE-2018-5102, CVE-2018-5103, CVE-2018-5104,
CVE-2018-5117)

* To mitigate timing-based side-channel attacks similar to 'Spectre'
and 'Meltdown', the resolution of performance.now() has been reduced
from 5ms to 20ms.

Red Hat would like to thank the Mozilla project for reporting these
issues. Upstream acknowledges Christian Holler, Jason Kratzer, Marcia
Knous, Nathan Froyd, Oriol Brufau, Ronald Crane, Randell Jesup, Tyson
Smith, Cobos Alvarez, Ryan VanderMeulen, Sebastian Hengst, Karl
Tomlinson, Xidorn Quan, Ludovic Hirlimann, Jason Orendorff, Looben
Yang, Anonymous, Nils, and Xisigr as the original reporters."
  );
  # https://lists.centos.org/pipermail/centos-announce/2018-January/022716.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1eb47fe4"
  );
  # https://lists.centos.org/pipermail/centos-announce/2018-January/022717.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?9401c38d"
  );
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-5089");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:firefox");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/25");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.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(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 6.x / 7.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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-6", reference:"firefox-52.6.0-1.el6.centos", allowmaj:TRUE)) flag++;

if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"firefox-52.6.0-1.el7.centos", allowmaj:TRUE)) 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");
}