Debian dsa-6193 : inetutils-ftp - 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-6193. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(304942);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/20");

  script_cve_id("CVE-2026-32746", "CVE-2026-32772");

  script_name(english:"Debian dsa-6193 : inetutils-ftp - 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
dsa-6193 advisory.

    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-6193-1                   [email protected]
    https://www.debian.org/security/                     Salvatore Bonaccorso
    April 03, 2026                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : inetutils
    CVE ID         : CVE-2026-32746 CVE-2026-32772
    Debian Bug     : 1130741 1130742

    Several vulnerabilities were discovered in the inetutils implementation
    of telnetd and telnet, which may result in privilege escalation or
    information disclosure.

    For the oldstable distribution (bookworm), these problems have been fixed
    in version 2:2.4-2+deb12u3.

    For the stable distribution (trixie), these problems have been fixed in
    version 2:2.6-3+deb13u3.

    We recommend that you upgrade your inetutils packages.

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

    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 these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/inetutils");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/inetutils");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-32746");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-32772");
  script_set_attribute(attribute:"solution", value:
"Upgrade the inetutils-ftp 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:R/S:C/C:L/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-2026-32746");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-32772");

  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:"2026/03/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-ftp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-ftpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-inetd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-ping");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-syslogd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-talk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-talkd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-telnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-telnetd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-traceroute");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:telnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:telnetd");
  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:"^(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': 'inetutils-ftp', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-ftpd', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-inetd', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-ping', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-syslogd', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-talk', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-talkd', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-telnet', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-telnetd', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-tools', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'inetutils-traceroute', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'telnet', 'reference': '2:2.4-2+deb12u3'},
    {'release': '12.0', 'prefix': 'telnetd', 'reference': '2:2.4-2+deb12u3'}
];

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, 'inetutils-ftp / inetutils-ftpd / inetutils-inetd / inetutils-ping / etc');
}