Fedora 37 : clevis-pin-tpm2 / greetd / keyring-ima-signer / libkrun / etc (2023-37ae269843)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2023-37ae269843
#

include('compat.inc');

if (description)
{
  script_id(176025);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/05/18");

  script_cve_id("CVE-2023-26964");
  script_xref(name:"FEDORA", value:"2023-37ae269843");

  script_name(english:"Fedora 37 : clevis-pin-tpm2 / greetd / keyring-ima-signer / libkrun / etc (2023-37ae269843)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Fedora 37 host has packages installed that are affected by a vulnerability as referenced in the
FEDORA-2023-37ae269843 advisory.

  - An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes
    HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of
    Service (DoS). (CVE-2023-26964)

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://bodhi.fedoraproject.org/updates/FEDORA-2023-37ae269843");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-26964");

  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:"2023/04/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/05/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:37");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:clevis-pin-tpm2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:greetd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:keyring-ima-signer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:libkrun");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mirrorlist-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:nispor");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:nmstate");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-afterburn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-below");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-bodhi-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-cargo-c");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-coreos-installer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-fedora-update-feedback");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-git-delta");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-gst-plugin-reqwest");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-pore");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-rpm-sequoia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-sequoia-octopus-librnp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-sequoia-policy-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-sequoia-sq");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-sevctl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-tealdeer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rust-ybaas");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Fedora' >!< os_release) audit(AUDIT_OS_NOT, 'Fedora');
var os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
os_ver = os_ver[1];
if (! preg(pattern:"^37([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 37', 'Fedora ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) 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, 'Fedora', cpu);

var pkgs = [
    {'reference':'clevis-pin-tpm2-0.5.2-5.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'greetd-0.9.0-4.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'keyring-ima-signer-0.1.0-9.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libkrun-1.5.0-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'mirrorlist-server-3.0.6-6.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'nispor-1.2.10-4.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'nmstate-2.2.10-5.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-afterburn-5.4.0-3.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-below-0.6.3-4.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-bodhi-cli-2.1.0-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-cargo-c-0.9.12-4.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-coreos-installer-0.17.0-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-fedora-update-feedback-2.1.2-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-git-delta-0.13.0-5.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-gst-plugin-reqwest-0.10.4-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-pore-0.1.8-3.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-rpm-sequoia-1.4.0-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-sequoia-octopus-librnp-1.4.1-8.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-sequoia-policy-config-0.6.0-3.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-sequoia-sq-0.26.0-7.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-sevctl-0.3.2-4.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-tealdeer-1.6.1-2.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-ybaas-0.0.10-7.fc37', 'release':'FC37', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (reference && _release) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) 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, 'clevis-pin-tpm2 / greetd / keyring-ima-signer / libkrun / etc');
}