CentOS Linux 7 [TuxCare] Security Update: ImageMagick / ImageMagick-c++ / ImageMagick-c++-devel / etc Multiple Vulnerabilities (CENTOS7:CLSA-2026:1792591590)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(370235);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/22");

  script_cve_id(
    "CVE-2026-105081",
    "CVE-2026-105403",
    "CVE-2026-105404",
    "CVE-2026-105823",
    "CVE-2026-106566",
    "CVE-2026-106579",
    "CVE-2026-106580"
  );
  script_xref(name:"CLSA", value:"2026:1792591590");

  script_name(english:"CentOS Linux 7 [TuxCare] Security Update: ImageMagick / ImageMagick-c++ / ImageMagick-c++-devel / etc Multiple Vulnerabilities (CENTOS7:CLSA-2026:1792591590)");

  script_set_attribute(attribute:"synopsis", value:
"The CentOS Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the
TuxCare CENTOS7:CLSA-2026:1792591590 advisory.

  - ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 does not properly account for symbolic links in the
    IsRightsAuthorizedByName security policy check, allowing configured policy restrictions to be bypassed.
    Local attackers who can create a symlink can point it at a policy-restricted path to evade the configured
    policy. (CVE-2026-105081)

  - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to
    7.1.2-32, delegate symlink cleanup does not check the MAGICK_SHRED_PASSES environment variable, allowing a
    local privileged workflow to overwrite a file with random data. This issue is fixed in version 7.1.2-32.
    (CVE-2026-106566)

  - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to
    7.1.2-31 and 6.9.13-56, a crafted image can bypass an ImageMagick security policy that uses coder as its
    domain, potentially allowing data prohibited by the policy to be read. This issue is fixed in versions
    7.1.2-31 and 6.9.13-56. (CVE-2026-106579)

  - ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to
    7.1.2-31 and 6.9.13-56, a missing security-policy check in the CUT encoder allows a crafted local encoding
    operation to read data that policy should deny and can also cause a crash. This issue is fixed in versions
    7.1.2-31 and 6.9.13-56. (CVE-2026-106580)

  - Rejected reason: This CVE ID has been rejected as a duplicate. (CVE-2026-105403, CVE-2026-105404,
    CVE-2026-105823)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://security.tuxcare.com/csaf/v2/els_os/centos7els/advisories/2026/clsa-2026_1792591590.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?98c76a9f");
  script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2026:1792591590");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory CENTOS7:CLSA-2026:1792591590.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C");
  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:N/S:U/C:L/I:N/A:H");
  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:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-106580");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-105081");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/10/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CentOS 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_info2.nasl");
  script_require_keys("Host/OS/extended-third-party", "Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}
include('rpm2.inc');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (empty_or_null(third_party_support) || third_party_support != 'TuxCare') exit(0, 'TuxCare support not enabled.');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'CentOS Linux' >!< os_product) audit(AUDIT_OS_NOT, 'CentOS Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'CentOS Linux');
if (! preg(pattern:"^7([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'CentOS Linux 7', 'CentOS Linux ' + os_version);

if (!get_kb_item('Host/CentOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && cpu !~ "^i[3-6]86$" && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CentOS Linux', cpu);


var constraints = [
  {
    'release': '7',
    'pkgs': [
      {'reference':'ImageMagick-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'aarch64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'i686', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'x86_64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-c++-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'aarch64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-c++-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'i686', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-c++-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'x86_64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-c++-devel-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'aarch64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-c++-devel-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'i686', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-c++-devel-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'x86_64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-devel-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'aarch64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-devel-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'i686', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-devel-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'x86_64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-doc-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'aarch64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-doc-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'i686', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-doc-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'x86_64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-perl-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'aarch64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-perl-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'i686', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ImageMagick-perl-6.9.10.68-7.0.11.el7_9.tuxcare.els7', 'cpu':'x86_64', 'el_string':'el7_9', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}


if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'ImageMagick / ImageMagick-c++ / ImageMagick-c++-devel / etc');
}