Debian dla-3920 : libapache2-mod-php7.4 - 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-3920. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(208984);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/17");

  script_cve_id(
    "CVE-2020-7071",
    "CVE-2022-4900",
    "CVE-2024-5458",
    "CVE-2024-8925",
    "CVE-2024-8927",
    "CVE-2024-9026"
  );

  script_name(english:"Debian dla-3920 : libapache2-mod-php7.4 - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-3920 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-3920-1                [email protected]
    https://www.debian.org/lts/security/                       Guilhem Moulin
    October 14, 2024                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : php7.4
    Version        : 7.4.33-1+deb11u6
    CVE ID         : CVE-2022-4900 CVE-2024-5458 CVE-2024-8925 CVE-2024-8927
                     CVE-2024-9026
    Debian Bug     : 1072885

    Multiple security issues were found in PHP, a widely-used open source
    general purpose scripting language, which could result in execution of
    arbitrary code, erroneous parsing of invalid URLs or multipart form
    data, configuration setting bypass, or log pollution.

    CVE-2022-4900

        It was discovered that setting the environment variable
        PHP_CLI_SERVER_WORKERS to a large value leads to a heap buffer
        overflow.

    CVE-2024-5458

        Due to a code logic error, filtering functions such as filter_var
        when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs
        the function results in invalid user information (username +
        password part of URLs) being treated as valid user information.
        This may lead to the downstream code accepting invalid URLs as valid
        and parsing them incorrectly.

        This causes the same problems as CVE-2020-7071, but with IPv6 host
        parts.

    CVE-2024-8925

        Mihail Kirov discovered an erroneous parsing of multipart form data
        contained in an HTTP POST request, which could lead to legitimate
        data not being processed thereby violating data integrity.

    CVE-2024-8927

        It was discovered that the `cgi.force_redirect` configuration
        setting is bypassable due to environment variable collision.

    CVE-2024-9026

        In PHP-FPM, when configured to catch workers output through
        catch_workers_output = yes configuration, it may be possible to
        pollute the final log with up to 4 characters from the
        FPM_STDIO_CMD_FLUSH macro, or remove up to 4 characters from the
        logs.

    For Debian 11 bullseye, these problems have been fixed in version
    7.4.33-1+deb11u6.

    We recommend that you upgrade your php7.4 packages.

    For the detailed security status of php7.4 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/php7.4

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS
    Attachment:
    signature.asc
    Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues 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/php7.4");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-7071");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-4900");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-5458");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-8925");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-8927");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-9026");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/php7.4");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libapache2-mod-php7.4 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-7071");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2024-8927");

  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:"2021/01/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/10/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-php7.4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libphp7.4-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-bz2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-interbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-mbstring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-odbc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-opcache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-phpdbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php7.4-zip");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
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  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 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/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:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', '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': '11.0', 'prefix': 'libapache2-mod-php7.4', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'libphp7.4-embed', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-bcmath', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-bz2', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-cgi', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-cli', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-common', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-curl', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-dba', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-dev', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-enchant', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-fpm', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-gd', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-gmp', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-imap', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-interbase', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-intl', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-json', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-ldap', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-mbstring', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-mysql', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-odbc', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-opcache', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-pgsql', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-phpdbg', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-pspell', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-readline', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-snmp', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-soap', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-sqlite3', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-sybase', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-tidy', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-xml', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-xmlrpc', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-xsl', 'reference': '7.4.33-1+deb11u6'},
    {'release': '11.0', 'prefix': 'php7.4-zip', 'reference': '7.4.33-1+deb11u6'}
];

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-php7.4 / libphp7.4-embed / php7.4 / php7.4-bcmath / etc');
}