Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2001)

#%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-2012-2001.
##

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

if (description)
{
  script_id(68668);
  script_version("1.21");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/09/08");

  script_cve_id("CVE-2010-2962", "CVE-2012-0056");
  script_bugtraq_id(44067, 51625);

  script_name(english:"Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2001)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in
the ELSA-2012-2001 advisory.

  - drivers/gpu/drm/i915/i915_gem.c in the Graphics Execution Manager (GEM) in the Intel i915 driver in the
    Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.36 does not properly validate
    pointers to blocks of memory, which allows local users to write to arbitrary kernel memory locations, and
    consequently gain privileges, via crafted use of the ioctl interface, related to (1) pwrite and (2) pread
    operations. (CVE-2010-2962)

  - The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check
    permissions when writing to /proc//mem, which allows local users to gain privileges by modifying
    process memory, as demonstrated by Mempodipper. (CVE-2012-0056)

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-2012-2001.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2010-2962");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"CANVAS");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/10/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-firmware");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mlnx_en-2.6.32-300.7.1.el6uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mlnx_en-2.6.32-300.7.1.el6uekdebug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ofa-2.6.32-300.7.1.el5uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ofa-2.6.32-300.7.1.el5uekdebug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ofa-2.6.32-300.7.1.el6uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:ofa-2.6.32-300.7.1.el6uekdebug");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("linux_alt_patch_detect.nasl", "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('ksplice.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:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 5 / 6', '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 machine_uptrack_level = get_one_kb_item('Host/uptrack-uname-r');
if (machine_uptrack_level)
{
  var trimmed_uptrack_level = ereg_replace(string:machine_uptrack_level, pattern:"\.(x86_64|i[3-6]86|aarch64)$", replace:'');
  var fixed_uptrack_levels = ['2.6.32-300.7.1.el5uek', '2.6.32-300.7.1.el6uek'];
  foreach var fixed_uptrack_level ( fixed_uptrack_levels ) {
    if (rpm_spec_vers_cmp(a:trimmed_uptrack_level, b:fixed_uptrack_level) >= 0)
    {
      audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for ELSA-2012-2001');
    }
  }
  __rpm_report = 'Running KSplice level of ' + trimmed_uptrack_level + ' does not meet the minimum fixed level of ' + join(fixed_uptrack_levels, sep:' / ') + ' for this advisory.\n\n';
}

var kernel_major_minor = get_kb_item('Host/uname/major_minor');
if (empty_or_null(kernel_major_minor)) exit(1, 'Unable to determine kernel major-minor level.');
var expected_kernel_major_minor = '2.6';
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, 'running kernel level ' + expected_kernel_major_minor + ', it is running kernel level ' + kernel_major_minor);

var pkgs = [
    {'reference':'kernel-uek-2.6.32-300.7.1.el5uek', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-2.6.32'},
    {'reference':'kernel-uek-2.6.32-300.7.1.el5uek', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-2.6.32'},
    {'reference':'kernel-uek-debug-2.6.32-300.7.1.el5uek', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-2.6.32'},
    {'reference':'kernel-uek-debug-2.6.32-300.7.1.el5uek', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-2.6.32'},
    {'reference':'kernel-uek-debug-devel-2.6.32-300.7.1.el5uek', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-2.6.32'},
    {'reference':'kernel-uek-debug-devel-2.6.32-300.7.1.el5uek', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-2.6.32'},
    {'reference':'kernel-uek-devel-2.6.32-300.7.1.el5uek', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-2.6.32'},
    {'reference':'kernel-uek-devel-2.6.32-300.7.1.el5uek', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-2.6.32'},
    {'reference':'kernel-uek-doc-2.6.32-300.7.1.el5uek', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-doc-2.6.32'},
    {'reference':'kernel-uek-firmware-2.6.32-300.7.1.el5uek', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-firmware-2.6.32'},
    {'reference':'kernel-uek-headers-2.6.32-300.7.1.el5uek', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-headers-2.6.32'},
    {'reference':'kernel-uek-headers-2.6.32-300.7.1.el5uek', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-headers-2.6.32'},
    {'reference':'ofa-2.6.32-300.7.1.el5uek-1.5.1-4.0.53', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el5uek-1.5.1-4.0.53', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el5uekdebug-1.5.1-4.0.53', 'cpu':'i686', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el5uekdebug-1.5.1-4.0.53', 'cpu':'x86_64', 'release':'5', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-uek-2.6.32-300.7.1.el6uek', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-2.6.32'},
    {'reference':'kernel-uek-2.6.32-300.7.1.el6uek', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-2.6.32'},
    {'reference':'kernel-uek-debug-2.6.32-300.7.1.el6uek', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-2.6.32'},
    {'reference':'kernel-uek-debug-2.6.32-300.7.1.el6uek', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-2.6.32'},
    {'reference':'kernel-uek-debug-devel-2.6.32-300.7.1.el6uek', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-2.6.32'},
    {'reference':'kernel-uek-debug-devel-2.6.32-300.7.1.el6uek', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-debug-devel-2.6.32'},
    {'reference':'kernel-uek-devel-2.6.32-300.7.1.el6uek', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-2.6.32'},
    {'reference':'kernel-uek-devel-2.6.32-300.7.1.el6uek', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-devel-2.6.32'},
    {'reference':'kernel-uek-doc-2.6.32-300.7.1.el6uek', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-doc-2.6.32'},
    {'reference':'kernel-uek-firmware-2.6.32-300.7.1.el6uek', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-firmware-2.6.32'},
    {'reference':'kernel-uek-headers-2.6.32-300.7.1.el6uek', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-headers-2.6.32'},
    {'reference':'kernel-uek-headers-2.6.32-300.7.1.el6uek', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-uek-headers-2.6.32'},
    {'reference':'mlnx_en-2.6.32-300.7.1.el6uek-1.5.7-0.1', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'mlnx_en-2.6.32-300.7.1.el6uek-1.5.7-0.1', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'mlnx_en-2.6.32-300.7.1.el6uekdebug-1.5.7-0.1', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'mlnx_en-2.6.32-300.7.1.el6uekdebug-1.5.7-0.1', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el6uek-1.5.1-4.0.47', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el6uek-1.5.1-4.0.47', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el6uekdebug-1.5.1-4.0.47', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'ofa-2.6.32-300.7.1.el6uekdebug-1.5.1-4.0.47', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var 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;
  var exists_check = 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 (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && release) {
    if (exists_check) {
        if (rpm_exists(release:release, rpm:exists_check) && 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++;
    } else {
        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, 'kernel-uek / kernel-uek-debug / kernel-uek-debug-devel / etc');
}