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RHEL 7 : yum-utils (RHSA-2018:2285)

🗓️ 02 Aug 2018 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 45 Views

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2018:2285 advisory. The update resolves an improper path validation issue in yum-utils

Related
Refs
Code
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM QRadar SIEM Application Framework v1 (CentOS6) is End of Life
14 Dec 202120:35
–ibm
IBM Security Bulletins		Security Bulletin: A vulnerability in yum-utils affects PowerKVM
26 Sep 201817:50
–ibm
Tenable Nessus		Amazon Linux 2 : yum-utils (ALAS-2018-1063)
24 Aug 201800:00
–nessus
Tenable Nessus		Amazon Linux AMI : yum-utils (ALAS-2018-1057)
10 Aug 201800:00
–nessus
Tenable Nessus		CentOS 6 : yum-utils (CESA-2018:2284)
10 Aug 201800:00
–nessus
Tenable Nessus		CentOS 7 : yum-utils (CESA-2018:2285)
10 Aug 201800:00
–nessus
Tenable Nessus		EulerOS 2.0 SP2 : yum-utils (EulerOS-SA-2018-1319)
27 Sep 201800:00
–nessus
Tenable Nessus		EulerOS 2.0 SP3 : yum-utils (EulerOS-SA-2018-1320)
27 Sep 201800:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.5.1 : yum-utils (EulerOS-SA-2018-1327)
26 Oct 201800:00
–nessus
Tenable Nessus		EulerOS Virtualization 2.5.0 : yum-utils (EulerOS-SA-2018-1349)
26 Oct 201800:00
–nessus
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#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:2285. The text 
# itself is copyright (C) Red Hat, Inc.
#

include('compat.inc');

if (description)
{
  script_id(111490);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/11/05");

  script_cve_id("CVE-2018-10897");
  script_xref(name:"RHSA", value:"2018:2285");

  script_name(english:"RHEL 7 : yum-utils (RHSA-2018:2285)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for yum-utils.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2018:2285 advisory.

    The yum-utils packages provide a collection of utilities and examples for the yum package manager to make
    yum easier and more powerful to use.

    Security Fix(es):

    * yum-utils: reposync: improper path validation may lead to directory traversal (CVE-2018-10897)

    For more details about the security issue(s), including the impact, a CVSS score, and other related
    information, refer to the CVE page(s) listed in the References section.

    Red Hat would like to thank Jay Grizzard (Clover Network) and Aaron Levy (Clover Network) for reporting
    this issue.

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://access.redhat.com/security/data/csaf/v2/advisories/2018/rhsa-2018_2285.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?16a14d30");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:2285");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1600221");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL yum-utils package based on the guidance in RHSA-2018:2285.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/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:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-10897");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(22);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-NetworkManager-dispatcher");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-aliases");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-auto-update-debug-info");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-changelog");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-copr");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-fastestmirror");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-filter-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-fs-snapshot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-keys");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-list-data");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-merge-conf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-ovl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-post-transaction-actions");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-pre-transaction-actions");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-priorities");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-protectbase");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-ps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-remove-with-leaves");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-rpm-warm-cache");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-show-leaves");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-tmprepo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-tsflags");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-upgrade-helper");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-verify");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-plugin-versionlock");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-updateonboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:yum-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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: '7')) audit(AUDIT_OS_NOT, 'Red Hat 7.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 = [
  {
    'repo_relative_urls': [
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/debug',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/optional/debug',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/optional/os',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/optional/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/os',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/debug',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/optional/debug',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/optional/os',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/optional/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/os',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/debug',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/optional/debug',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/optional/os',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/optional/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/os',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/source/SRPMS',
      'content/dist/rhel/client/7/7.9/x86_64/debug',
      'content/dist/rhel/client/7/7.9/x86_64/optional/debug',
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      'content/dist/rhel/client/7/7.9/x86_64/source/SRPMS',
      'content/dist/rhel/client/7/7Client/x86_64/debug',
      'content/dist/rhel/client/7/7Client/x86_64/optional/debug',
      'content/dist/rhel/client/7/7Client/x86_64/optional/os',
      'content/dist/rhel/client/7/7Client/x86_64/optional/source/SRPMS',
      'content/dist/rhel/client/7/7Client/x86_64/os',
      'content/dist/rhel/client/7/7Client/x86_64/source/SRPMS',
      'content/dist/rhel/computenode/7/7.9/x86_64/optional/debug',
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      'content/dist/rhel/computenode/7/7ComputeNode/x86_64/debug',
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      'content/dist/rhel/computenode/7/7ComputeNode/x86_64/optional/source/SRPMS',
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      'content/dist/rhel/power-le/7/7.9/ppc64le/debug',
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      'content/dist/rhel/power-le/7/7.9/ppc64le/source/SRPMS',
      'content/dist/rhel/power-le/7/7Server/ppc64le/debug',
      'content/dist/rhel/power-le/7/7Server/ppc64le/highavailability/debug',
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      'content/fastrack/rhel/client/7/x86_64/debug',
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      'content/fastrack/rhel/computenode/7/x86_64/source/SRPMS',
      'content/fastrack/rhel/power/7/ppc64/debug',
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      'content/fastrack/rhel/power/7/ppc64/optional/os',
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      'content/fastrack/rhel/power/7/ppc64/os',
      'content/fastrack/rhel/power/7/ppc64/source/SRPMS',
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      'content/fastrack/rhel/server/7/x86_64/optional/debug',
      'content/fastrack/rhel/server/7/x86_64/optional/os',
      'content/fastrack/rhel/server/7/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/server/7/x86_64/os',
      'content/fastrack/rhel/server/7/x86_64/resilientstorage/debug',
      'content/fastrack/rhel/server/7/x86_64/resilientstorage/os',
      'content/fastrack/rhel/server/7/x86_64/resilientstorage/source/SRPMS',
      'content/fastrack/rhel/server/7/x86_64/source/SRPMS',
      'content/fastrack/rhel/system-z/7/s390x/debug',
      'content/fastrack/rhel/system-z/7/s390x/optional/debug',
      'content/fastrack/rhel/system-z/7/s390x/optional/os',
      'content/fastrack/rhel/system-z/7/s390x/optional/source/SRPMS',
      'content/fastrack/rhel/system-z/7/s390x/os',
      'content/fastrack/rhel/system-z/7/s390x/source/SRPMS',
      'content/fastrack/rhel/workstation/7/x86_64/debug',
      'content/fastrack/rhel/workstation/7/x86_64/optional/debug',
      'content/fastrack/rhel/workstation/7/x86_64/optional/os',
      'content/fastrack/rhel/workstation/7/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/workstation/7/x86_64/os',
      'content/fastrack/rhel/workstation/7/x86_64/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'yum-NetworkManager-dispatcher-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-aliases-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-auto-update-debug-info-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-changelog-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-copr-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-fastestmirror-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-filter-data-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-fs-snapshot-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-keys-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-list-data-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-local-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-merge-conf-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-ovl-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-post-transaction-actions-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-pre-transaction-actions-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-priorities-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-protectbase-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-ps-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-remove-with-leaves-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-rpm-warm-cache-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-show-leaves-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-tmprepo-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-tsflags-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-upgrade-helper-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-verify-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-plugin-versionlock-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-updateonboot-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'yum-utils-1.1.31-46.el7_5', 'release':'7', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

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_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'yum-NetworkManager-dispatcher / yum-plugin-aliases / etc');
}

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05 Nov 2024 00:00Current
7.7High risk
Vulners AI Score7.7
CVSS 3.18.1
CVSS 29.3
CVSS 38.8
EPSS0.02619
red hat enterprise linux 7yum-utilssecurity updatevulnerabilitydirectory traversalrhsa-2018:2285 advisorynessuspath validationpatch
45