Amazon Linux AMI : php73 (ALAS-2020-1347)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2020-1347.
#

include('compat.inc');

if (description)
{
  script_id(134120);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/25");

  script_cve_id("CVE-2020-7059", "CVE-2020-7060");
  script_xref(name:"ALAS", value:"2020-1347");

  script_name(english:"Amazon Linux AMI : php73 (ALAS-2020-1347)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux AMI host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"When using fgetss() function to read data with stripping tags, in PHP
versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2
it is possible to supply data that will cause this function to read
past the allocated buffer. This may lead to information disclosure or
crash. (CVE-2020-7059)

When using certain mbstring functions to convert multibyte encodings,
in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below
7.4.2 it is possible to supply data that will cause function
mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may
lead to information disclosure or crash. (CVE-2020-7060)");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/ALAS-2020-1347.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update php73' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/S:U/C:H/I:N/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-2020-7060");

  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:"2020/02/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-embedded");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-mysqlnd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pdo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pdo-dblib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-process");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:php73-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
  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) 2020-2024 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 != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

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


flag = 0;
if (rpm_check(release:"ALA", reference:"php73-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-bcmath-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-cli-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-common-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-dba-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-dbg-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-debuginfo-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-devel-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-embedded-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-enchant-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-fpm-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-gd-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-gmp-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-imap-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-intl-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-json-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-ldap-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-mbstring-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-mysqlnd-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-odbc-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-opcache-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-pdo-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-pdo-dblib-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-pgsql-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-process-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-pspell-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-recode-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-snmp-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-soap-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-tidy-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-xml-7.3.14-1.23.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"php73-xmlrpc-7.3.14-1.23.amzn1")) 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, "php73 / php73-bcmath / php73-cli / php73-common / php73-dba / etc");
}