Debian dsa-6414 : gir1.2-udisks-2.0 - security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-6414. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(333109);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/06");

  script_cve_id("CVE-2026-7867");

  script_name(english:"Debian dsa-6414 : gir1.2-udisks-2.0 - 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 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6414
advisory.

    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-6414-1                   [email protected]
    https://www.debian.org/security/                           Alberto Garcia
    August 06, 2026                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : udisks2
    CVE ID         : CVE-2026-7867

    The following vulnerability has been discovered in the UDisks storage
    daemon:

    CVE-2026-7867

        Azizcan Dastan and Ozlem Ozan discovered a local privilege
        escalation vulnerability in udisks2 involving the Filesystem.Mount
        D-Bus method. Using the 'as-user' option, an unprivileged local
        user can in some cases influence the mount execution path so that
        a filesystem mount is performed in a privileged/root context
        without the expected PolicyKit authorization behavior.

    For the stable distribution (trixie), this problem has been fixed in
    version 2.10.1-12.1+deb13u2.

    We recommend that you upgrade your udisks2 packages.

    For the detailed security status of udisks2 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/udisks2

    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/

    Mailing list: [email protected]

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.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/udisks2");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-7867");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/trixie/udisks2");
  script_set_attribute(attribute:"solution", value:
"Upgrade the gir1.2-udisks-2.0 packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-7867");

  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:"2026/08/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gir1.2-udisks-2.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libudisks2-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libudisks2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:udisks2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:udisks2-btrfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:udisks2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:udisks2-lvm2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  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:"^(13)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 13.0', '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': '13.0', 'prefix': 'gir1.2-udisks-2.0', 'reference': '2.10.1-12.1+deb13u2'},
    {'release': '13.0', 'prefix': 'libudisks2-0', 'reference': '2.10.1-12.1+deb13u2'},
    {'release': '13.0', 'prefix': 'libudisks2-dev', 'reference': '2.10.1-12.1+deb13u2'},
    {'release': '13.0', 'prefix': 'udisks2', 'reference': '2.10.1-12.1+deb13u2'},
    {'release': '13.0', 'prefix': 'udisks2-btrfs', 'reference': '2.10.1-12.1+deb13u2'},
    {'release': '13.0', 'prefix': 'udisks2-doc', 'reference': '2.10.1-12.1+deb13u2'},
    {'release': '13.0', 'prefix': 'udisks2-lvm2', 'reference': '2.10.1-12.1+deb13u2'}
];

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, 'gir1.2-udisks-2.0 / libudisks2-0 / libudisks2-dev / udisks2 / etc');
}