RHEL 6 : libguestfs (RHSA-2012:0774)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2012:0774. The text 
# itself is copyright (C) Red Hat, Inc.
#

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

if (description)
{
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  script_version("1.19");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/04/15");

  script_cve_id("CVE-2012-2690");
  script_bugtraq_id(53932);
  script_xref(name:"RHSA", value:"2012:0774");

  script_name(english:"RHEL 6 : libguestfs (RHSA-2012:0774)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2012:0774 advisory.

    libguestfs is a library for accessing and modifying guest disk images.

    It was found that editing files with virt-edit left said files in a
    world-readable state (and did not preserve the file owner or
    Security-Enhanced Linux context). If an administrator on the host used
    virt-edit to edit a file inside a guest, the file would be left with
    world-readable permissions. This could lead to unprivileged guest users
    accessing files they would otherwise be unable to. (CVE-2012-2690)

    These updated libguestfs packages include numerous bug fixes and
    enhancements. Space precludes documenting all of these changes in this
    advisory. Users are directed to the Red Hat Enterprise Linux 6.3 Technical
    Notes for information on the most significant of these changes.

    Users of libguestfs are advised to upgrade to these updated packages, which
    fix these issues and add these enhancements.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/libguestfs.html#RHSA-2012-0774
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?25c51fb6");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0774.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ea29af6b");
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  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#low");
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  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=769359");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=785305");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=785668");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=789960");
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  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=795322");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=796520");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=797760");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=798197");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=798980");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=799695");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=799798");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=801273");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=801788");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=803699");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=807557");
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  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=811112");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=811117");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=811673");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=812092");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=813329");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=831117");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-2690");

  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:"Low");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/06/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/24");

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  script_dependencies("redhat_repos.nasl", "ssh_get_info.nasl");
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  exit(0);
}


include('rpm.inc');
include('rhel.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) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.x', 'Red Hat ' + 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
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      'content/dist/rhel/client/6/6Client/x86_64/optional/debug',
      'content/dist/rhel/client/6/6Client/x86_64/optional/os',
      'content/dist/rhel/client/6/6Client/x86_64/optional/source/SRPMS',
      'content/dist/rhel/client/6/6Client/x86_64/os',
      'content/dist/rhel/client/6/6Client/x86_64/source/SRPMS',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/debug',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/optional/debug',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/optional/os',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/optional/source/SRPMS',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/os',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/scalablefilesystem/debug',
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      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/source/SRPMS',
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      'content/dist/rhel/server/6/6Server/x86_64/loadbalancer/source/SRPMS',
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      'content/dist/rhel/server/6/6Server/x86_64/optional/os',
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      'content/dist/rhel/server/6/6Server/x86_64/os',
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      'content/dist/rhel/server/6/6Server/x86_64/resilientstorage/os',
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      'content/dist/rhel/server/6/6Server/x86_64/scalablefilesystem/debug',
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      'content/dist/rhel/server/6/6Server/x86_64/source/SRPMS',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/debug',
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      'content/dist/rhel/workstation/6/6Workstation/x86_64/optional/os',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/optional/source/SRPMS',
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      'content/fastrack/rhel/computenode/6/x86_64/optional/source/SRPMS',
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      'content/fastrack/rhel/computenode/6/x86_64/scalablefilesystem/debug',
      'content/fastrack/rhel/computenode/6/x86_64/scalablefilesystem/os',
      'content/fastrack/rhel/computenode/6/x86_64/scalablefilesystem/source/SRPMS',
      'content/fastrack/rhel/computenode/6/x86_64/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/debug',
      'content/fastrack/rhel/server/6/x86_64/highavailability/debug',
      'content/fastrack/rhel/server/6/x86_64/highavailability/os',
      'content/fastrack/rhel/server/6/x86_64/highavailability/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/loadbalancer/debug',
      'content/fastrack/rhel/server/6/x86_64/loadbalancer/os',
      'content/fastrack/rhel/server/6/x86_64/loadbalancer/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/optional/debug',
      'content/fastrack/rhel/server/6/x86_64/optional/os',
      'content/fastrack/rhel/server/6/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/os',
      'content/fastrack/rhel/server/6/x86_64/resilientstorage/debug',
      'content/fastrack/rhel/server/6/x86_64/resilientstorage/os',
      'content/fastrack/rhel/server/6/x86_64/resilientstorage/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/scalablefilesystem/debug',
      'content/fastrack/rhel/server/6/x86_64/scalablefilesystem/os',
      'content/fastrack/rhel/server/6/x86_64/scalablefilesystem/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/source/SRPMS',
      'content/fastrack/rhel/workstation/6/x86_64/debug',
      'content/fastrack/rhel/workstation/6/x86_64/optional/debug',
      'content/fastrack/rhel/workstation/6/x86_64/optional/os',
      'content/fastrack/rhel/workstation/6/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/workstation/6/x86_64/os',
      'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/debug',
      'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/os',
      'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/source/SRPMS',
      'content/fastrack/rhel/workstation/6/x86_64/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'libguestfs-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'libguestfs-devel-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'libguestfs-java-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'libguestfs-java-devel-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'libguestfs-javadoc-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'libguestfs-tools-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'libguestfs-tools-c-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
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      {'reference':'perl-Sys-Guestfs-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'python-libguestfs-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'ruby-libguestfs-1.16.19-1.el6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
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  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_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;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    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 &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || 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, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libguestfs / libguestfs-devel / libguestfs-java / etc');
}