Oracle Linux 8 : rust-toolset:ol8 (ELSA-2021-4270)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2021-4270.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(155434);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/23");

  script_cve_id("CVE-2021-29922");

  script_name(english:"Oracle Linux 8 : rust-toolset:ol8 (ELSA-2021-4270)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the
ELSA-2021-4270 advisory.

  - library/std/src/net/parser.rs in Rust before 1.53.0 does not properly consider extraneous zero characters
    at the beginning of an IP address string, which (in some situations) allows attackers to bypass access
    control that is based on IP addresses, because of unexpected octal interpretation. (CVE-2021-29922)

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://linux.oracle.com/errata/ELSA-2021-4270.html");
  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:P/A:P");
  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:H/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-2021-29922");

  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:"2021/08/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:cargo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:cargo-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:clippy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-analysis");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-debugger-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-gdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-lldb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-src");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-std-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-std-static-wasm32-unknown-unknown");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rust-toolset");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rustfmt");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('audit.inc');
include('global_settings.inc');
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
var os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 8', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var module_ver = get_kb_item('Host/RedHat/appstream/rust-toolset');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module rust-toolset:ol8');
if ('ol8' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module rust-toolset:' + module_ver);

var appstreams = {
    'rust-toolset:ol8': [
      {'reference':'cargo-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'cargo-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'cargo-doc-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'clippy-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'clippy-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rls-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rls-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-analysis-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-analysis-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-debugger-common-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-doc-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-doc-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-gdb-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-lldb-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-src-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-std-static-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-std-static-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-std-static-wasm32-unknown-unknown-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-std-static-wasm32-unknown-unknown-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-toolset-1.54.0-1.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rust-toolset-1.54.0-1.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rustfmt-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rustfmt-1.54.0-2.module+el8.5.0+20381+6e029bfc', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
};

var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
  var appstream = NULL;
  var appstream_name = NULL;
  var appstream_version = NULL;
  var appstream_split = split(module, sep:':', keep:FALSE);
  if (!empty_or_null(appstream_split)) {
    appstream_name = appstream_split[0];
    appstream_version = appstream_split[1];
    if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RedHat/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var package_array ( appstreams[module] ) {
      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 = 'EL' + 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 (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module rust-toolset:ol8');

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, 'cargo / cargo-doc / clippy / etc');
}