Debian dla-4726 : ca-certificates - 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-4726. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(333556);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/10");

  script_name(english:"Debian dla-4726 : ca-certificates - 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 11 / 12 host has packages installed that are affected by a vulnerability as referenced in the dla-4726
advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4726-1                [email protected]
    https://www.debian.org/lts/security/                   Bastien Roucaris
    August 09, 2026                               https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : ca-certificates
    Version        : 20250419~deb12u1~deb11u1 20250419~deb12u1
    Debian Bug     : 981663 1023945 1031490 1032916 1050112 1058658 1063093 1067042

    ca-certificates a package that contains the certificate authorities
    shipped with Mozilla's browser to allow SSL-based applications to check
    for the authenticity of SSL connections, was updated

    Mozilla certificate authority bundle was updated to version 2.74

    The following certificate authorities were added (+):
        + D-TRUST BR Root CA 2 2023
        + D-TRUST EV Root CA 2 2023
        + Telekom Security TLS ECC Root 2020
        + Telekom Security TLS RSA Root 2023
        + FIRMAPROFESIONAL CA ROOT-A WEB
        + TWCA CYBER Root CA
        + SecureSign Root CA12
        + SecureSign Root CA14
        + SecureSign Root CA15
        + Atos TrustedRoot Root CA ECC TLS 2021
        + Atos TrustedRoot Root CA RSA TLS 2021
        + BJCA Global Root CA1
        + BJCA Global Root CA2
        + CommScope Public Trust ECC Root-01
        + CommScope Public Trust ECC Root-02
        + CommScope Public Trust RSA Root-01
        + CommScope Public Trust RSA Root-02
        + Sectigo Public Server Authentication Root E46
        + Sectigo Public Server Authentication Root R46
        + SSL.com TLS ECC Root CA 2022
        + SSL.com TLS RSA Root CA 2022
        + TrustAsia Global Root CA G3
        + TrustAsia Global Root CA G4
    The following certificate authorities were removed (-):
        - Entrust Root Certification Authority - G4
        - SecureSign RootCA11
        - Security Communication RootCA3
        - SwissSign Silver CA - G2
        - Security Communication Root CA (closes: #1063093)
        - Autoridad de Certificacion Firmaprofesional CIF A62634068
        - E-Tugra Certification Authority (closes: #1032916)
        - E-Tugra Global Root CA ECC v3
        - E-Tugra Global Root CA RSA v3
        - Hongkong Post Root CA 1
        - TrustCor ECA-1
        - TrustCor RootCert CA-1
        - TrustCor RootCert CA-2 (closes: #1023945)

    Please note that Debian can neither confirm nor deny whether the
    certificate authorities whose certificates are included in this package
    have in any way been audited for trustworthiness or RFC 3647 compliance.
    Full responsibility to assess them belongs to the local system administrator.

    For Debian 11 bullseye, this problem has been fixed in version
    20250419~deb12u1~deb11u1.

    For Debian 12 bookworm, this problem has been fixed in version
    20250419~deb12u1.

    We recommend that you upgrade your ca-certificates packages.

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

    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

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/ca-certificates
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c9932d96");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/ca-certificates");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/ca-certificates");
  script_set_attribute(attribute:"solution", value:
"Upgrade the ca-certificates packages.");
  script_set_attribute(attribute:"risk_factor", value:"High");

  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:"2026/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ca-certificates");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ca-certificates-udeb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  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:"^(11)\.[0-9]+|^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0 / 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': '11.0', 'prefix': 'ca-certificates', 'reference': '20250419~deb12u1~deb11u1'},
    {'release': '11.0', 'prefix': 'ca-certificates-udeb', 'reference': '20250419~deb12u1~deb11u1'},
    {'release': '12.0', 'prefix': 'ca-certificates', 'reference': '20250419~deb12u1'},
    {'release': '12.0', 'prefix': 'ca-certificates-udeb', 'reference': '20250419~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, 'ca-certificates / ca-certificates-udeb');
}