Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : Request Tracker vulnerabilities (USN-8506-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-8506-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(325431);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/07");

  script_cve_id(
    "CVE-2026-6841",
    "CVE-2026-41073",
    "CVE-2026-41075",
    "CVE-2026-41076",
    "CVE-2026-44229",
    "CVE-2026-44230",
    "CVE-2026-44231"
  );
  script_xref(name:"USN", value:"8506-1");

  script_name(english:"Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : Request Tracker vulnerabilities (USN-8506-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-8506-1 advisory.

    Aleksander Iwicki discovered that Request Tracker did not properly sanitize the search Page URL
    parameter. A remote attacker could possibly use this issue to conduct a reflected cross-site scripting
    attack. (CVE-2026-6841)

    It was discovered that Request Tracker did not properly sanitize user- controlled data written to
    spreadsheet exports of search results. A remote attacker could possibly use this issue to conduct a
    spreadsheet (CSV/formula) injection attack, causing spreadsheet applications to interpret crafted values
    as formulas or macros when the file is opened. (CVE-2026-41073)

    It was discovered that Request Tracker did not properly validate input incorporated into database queries
    via the entry_aggregator parameter in JSON search. An authenticated user could possibly use this issue to
    perform SQL injection attacks and read or modify data in the RT database. (CVE-2026-41075)

    It was discovered that Request Tracker contained an authentication bypass when configured to authenticate
    users against an LDAP or Active Directory server. Under certain LDAP server configurations, a remote
    attacker could possibly use this issue to authenticate as any LDAP-backed RT user without supplying valid
    credentials. (CVE-2026-41076)

    It was discovered that Request Tracker served certain uploaded content inline rather than as an
    attachment. A remote attacker could possibly use this issue to conduct a cross-site scripting attack.
    (CVE-2026-44229)

    It was discovered that Request Tracker did not properly sanitize input on search-results chart pages. A
    remote attacker could possibly use this issue to conduct a reflected cross-site scripting attack.
    (CVE-2026-44230)

    Jeroen Gui discovered that Request Tracker did not properly restrict access to the REST 2.0 user
    collection endpoint. A privileged user could possibly use this issue to obtain authentication credentials
    belonging to other users, including administrators, resulting in privilege escalation and information
    disclosure. (CVE-2026-44231)

Tenable has extracted the preceding description block directly from the Ubuntu 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://ubuntu.com/security/notices/USN-8506-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-6841");

  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:"2026/05/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:request-tracker5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-apache2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-db-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-db-postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-db-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-fcgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:rt5-standalone");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2026 Canonical, Inc. / NASL script (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "ubuntu_pro_sub_detect.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/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);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('22.04' >< os_release || '24.04' >< os_release || '26.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04 / 24.04 / 26.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var ubuntu_pro_detected = get_kb_item('Host/Ubuntu/Pro/Services/esm-apps');
ubuntu_pro_detected = !empty_or_null(ubuntu_pro_detected);

var pro_caveat_needed = FALSE;

var pkgs = [
    {'osver': '22.04', 'pkgname': 'request-tracker5', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-apache2', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-clients', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-db-mysql', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-db-postgresql', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-db-sqlite', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-fcgi', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '22.04', 'pkgname': 'rt5-standalone', 'pkgver': '5.0.1+dfsg-1ubuntu1+esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'request-tracker5', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-apache2', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-clients', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-db-mysql', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-db-postgresql', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-db-sqlite', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-fcgi', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '24.04', 'pkgname': 'rt5-standalone', 'pkgver': '5.0.5+dfsg-2ubuntu0.1~esm2', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'request-tracker5', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-apache2', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-clients', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-db-mysql', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-db-postgresql', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-db-sqlite', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-fcgi', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE},
    {'osver': '26.04', 'pkgname': 'rt5-standalone', 'pkgver': '5.0.7+dfsg-6ubuntu0.1~esm1', 'ubuntu_pro': TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  var pro_required = NULL;
  if (!empty_or_null(package_array['ubuntu_pro'])) pro_required = package_array['ubuntu_pro'];
  if (osver && pkgname && pkgver) {
    if (deb_check(release:osver, prefix:pkgname, reference:pkgver, cves:cves)) {
        flag++;
        if (!ubuntu_pro_detected && !pro_caveat_needed) pro_caveat_needed = pro_required;
    }
  }
}

if (flag)
{
  var extra = '';
  if (pro_caveat_needed) {
    extra += 'NOTE: This vulnerability check contains fixes that apply to packages only \n';
    extra += 'available in Ubuntu ESM repositories. Access to these package security updates \n';
    extra += 'require an Ubuntu Pro subscription.\n\n';
  }
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'request-tracker5 / rt5-apache2 / rt5-clients / rt5-db-mysql / etc');
}