Debian dla-4732 : libapache2-mod-php8.2 - 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-4732. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(334644);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/12");

  script_cve_id("CVE-2026-7260", "CVE-2026-17543");

  script_name(english:"Debian dla-4732 : libapache2-mod-php8.2 - 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 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4732 advisory.

    -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4732-1                [email protected]
    https://www.debian.org/lts/security/                       Guilhem Moulin
    August 11, 2026                               https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : php8.2
    Version        : 8.2.33-1~deb12u1
    CVE ID         : CVE-2026-7260 CVE-2026-17543
    Debian Bug     : 1143153

    Security issues were found in PHP, a widely-used open source general
    purpose scripting language, which could result in denial of service or
    SQL injection.

    CVE-2026-7260

        Symbolic links in phar archives are followed without any depth limit
        or cycle detection.  A crafted tar-based phar archive containing
        circular symbolic links could therefore cause unbounded recursion,
        exhausting the C stack and crashing the PHP process.

    CVE-2026-17543

        Improper escaping of backslashes in attacker-provided parameters
        allow for trivial SQL injection via E'' backslash breakout.

    For Debian 12 bookworm, these problems have been fixed in version
    8.2.33-1~deb12u1.

    We recommend that you upgrade your php8.2 packages.

    For the detailed security status of php8.2 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/php8.2

    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/php8.2");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-17543");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-7260");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/php8.2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libapache2-mod-php8.2 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_supplemental", value:"CVSS:4.0/AU:Y/R:U");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-17543");

  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:"2026/07/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libapache2-mod-php8.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libphp8.2-embed");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-bcmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-bz2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-dba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-enchant");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-fpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-gd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-gmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-imap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-interbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-intl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-mbstring");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-odbc");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-phpdbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-pspell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-readline");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-snmp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-soap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-sybase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-tidy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-xml");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-xsl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php8.2-zip");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
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  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2026 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:"^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 12.0', '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': '12.0', 'prefix': 'libapache2-mod-php8.2', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'libphp8.2-embed', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-bcmath', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-bz2', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-cgi', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-cli', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-common', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-curl', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-dba', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-dev', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-enchant', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-fpm', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-gd', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-gmp', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-imap', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-interbase', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-intl', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-ldap', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-mbstring', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-mysql', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-odbc', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-opcache', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-pgsql', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-phpdbg', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-pspell', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-readline', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-snmp', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-soap', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-sqlite3', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-sybase', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-tidy', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-xml', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-xsl', 'reference': '8.2.33-1~deb12u1'},
    {'release': '12.0', 'prefix': 'php8.2-zip', 'reference': '8.2.33-1~deb12u1'}
];

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_HOLE,
    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-php8.2 / libphp8.2-embed / php8.2 / php8.2-bcmath / etc');
}