Debian DLA-3458-1 : php7.3 - LTS security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3458. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(177451);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/17");

  script_cve_id("CVE-2023-3247");
  script_xref(name:"IAVA", value:"2023-A-0321-S");

  script_name(english:"Debian DLA-3458-1 : php7.3 - LTS security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3458
advisory.

  - In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest
    Authentication, random value generator was not checked for failure, and was using narrower range of values
    than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of
    uninitialized memory from the client to the server, and it also made easier to a malicious server to guess
    the client's nonce. (CVE-2023-3247)

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://security-tracker.debian.org/tracker/source-package/php7.3");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2023/dla-3458");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-3247");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/php7.3");
  script_set_attribute(attribute:"solution", value:
"Upgrade the php7.3 packages.

For Debian 10 buster, this problem has been fixed in version 7.3.31-1~deb10u4.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  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:L/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-3247");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/06/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-php7.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libphp7.3-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-bz2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-interbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-phpdbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-recode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.3-zip");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '10.0', 'prefix': 'libapache2-mod-php7.3', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'libphp7.3-embed', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-bcmath', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-bz2', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-cgi', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-cli', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-common', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-curl', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-dba', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-dev', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-enchant', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-fpm', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-gd', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-gmp', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-imap', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-interbase', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-intl', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-json', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-ldap', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-mbstring', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-mysql', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-odbc', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-opcache', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-pgsql', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-phpdbg', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-pspell', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-readline', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-recode', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-snmp', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-soap', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-sqlite3', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-sybase', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-tidy', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-xml', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-xmlrpc', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-xsl', 'reference': '7.3.31-1~deb10u4'},
    {'release': '10.0', 'prefix': 'php7.3-zip', 'reference': '7.3.31-1~deb10u4'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libapache2-mod-php7.3 / libphp7.3-embed / php7.3 / php7.3-bcmath / etc');
}