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nessusThis script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.AL2_ALAS-2020-1393.NASL
HistoryFeb 13, 2020 - 12:00 a.m.

Amazon Linux 2 : thunderbird (ALAS-2020-1393)

2020-02-1300:00:00
This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
25

When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72. (CVE-2019-17016)

Mozilla developers reported memory safety bugs present in Firefox 71 and Firefox ESR 68.3. 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. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.( CVE-2019-17024)

When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node’s innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist.
This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.(CVE-2019-17022)

Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
(CVE-2019-17017)

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw.(CVE-2019-17026)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2020-1393.
#

include('compat.inc');

if (description)
{
  script_id(133652);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/06");

  script_cve_id(
    "CVE-2019-17016",
    "CVE-2019-17017",
    "CVE-2019-17022",
    "CVE-2019-17024",
    "CVE-2019-17026"
  );
  script_xref(name:"ALAS", value:"2020-1393");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/03");
  script_xref(name:"CEA-ID", value:"CEA-2020-0007");

  script_name(english:"Amazon Linux 2 : thunderbird (ALAS-2020-1393)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"When pasting a <style> tag from the clipboard into a rich text editor,
the CSS sanitizer incorrectly rewrites a @namespace rule. This could
allow for injection into certain types of websites resulting in data
exfiltration. This vulnerability affects Firefox ESR < 68.4 and
Firefox < 72. (CVE-2019-17016)

Mozilla developers reported memory safety bugs present in Firefox 71
and Firefox ESR 68.3. 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. This vulnerability affects
Firefox ESR < 68.4 and Firefox < 72.( CVE-2019-17024)

When pasting a <style> tag from the clipboard into a rich text editor,
the CSS sanitizer does not escape < and > characters. Because the
resulting string is pasted directly into the text node of the element
this does not result in a direct injection into the webpage; however,
if a webpage subsequently copies the node's innerHTML, assigning it to
another innerHTML, this would result in an XSS vulnerability. Two
WYSIWYG editors were identified with this behavior, more may exist.
This vulnerability affects Firefox ESR < 68.4 and Firefox <
72.(CVE-2019-17022)

Due to a missing case handling object types, a type confusion
vulnerability could occur, resulting in a crash. We presume that with
enough effort that it could be exploited to run arbitrary code. This
vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
(CVE-2019-17017)

Incorrect alias information in IonMonkey JIT compiler for setting
array elements could lead to a type confusion. We are aware of
targeted attacks in the wild abusing this flaw.(CVE-2019-17026)");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2020-1393.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update thunderbird' to update your system.");
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17026");

  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:"2020/01/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:thunderbird");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:thunderbird-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"thunderbird-68.4.1-2.amzn2.0.1", allowmaj:TRUE)) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"thunderbird-debuginfo-68.4.1-2.amzn2.0.1", allowmaj:TRUE)) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "thunderbird / thunderbird-debuginfo");
}