Linux Distros Unpatched Vulnerability : CVE-2018-16883

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(222296);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/04");

  script_cve_id("CVE-2018-16883");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2018-16883");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - sssd versions from 1.13.0 to before 2.0.0 did not properly restrict access to the infopipe according to
    the allowed_uids configuration parameter. If sensitive information were stored in the user directory,
    this could be inadvertently disclosed to local attackers. (CVE-2018-16883)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2018-16883");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2018-16883");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  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-2018-16883");

  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_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/04");

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  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:sssd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libipa_hbac-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libipa_hbac-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsss_autofs");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsss_nss_idmap-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsss_simpleifp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsss_simpleifp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsss_sudo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libsss_sudo-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-libsss_nss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-sss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-sss-murmur");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-ad");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-common-pac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-dbus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-ipa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-kcm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-krb5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-libwbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-libwbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-polkit-rules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-proxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:sssd-winbind-idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libipa_hbac-devel");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_autofs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_certmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_certmap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_idmap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_nss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_nss_idmap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_nss_idmap-python");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-kcm");
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  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("set_linux_os_id.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OS/identifier", "Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched");
  script_require_ports("Host/OS/CentOS Linux-7", "Host/OS/Red Hat Enterprise Linux-6", "Host/OS/Red Hat Enterprise Linux-7", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/CentOS/rpm-list")) && empty_or_null(get_one_kb_item("Host/Debian/dpkg-l")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "libipa-hbac-dev"},
          {"reference": "libipa-hbac0"},
          {"reference": "libnss-sss"},
          {"reference": "libpam-sss"},
          {"reference": "libsss-idmap-dev"},
          {"reference": "libsss-idmap0"},
          {"reference": "libsss-nss-idmap-dev"},
          {"reference": "libsss-nss-idmap0"},
          {"reference": "libsss-simpleifp-dev"},
          {"reference": "libsss-simpleifp0"},
          {"reference": "libsss-sudo"},
          {"reference": "libwbclient-sssd"},
          {"reference": "libwbclient-sssd-dev"},
          {"reference": "python-libipa-hbac"},
          {"reference": "python-libsss-nss-idmap"},
          {"reference": "python-sss"},
          {"reference": "python3-libipa-hbac"},
          {"reference": "python3-libsss-nss-idmap"},
          {"reference": "python3-sss"},
          {"reference": "sssd"},
          {"reference": "sssd-ad"},
          {"reference": "sssd-ad-common"},
          {"reference": "sssd-common"},
          {"reference": "sssd-dbus"},
          {"reference": "sssd-ipa"},
          {"reference": "sssd-krb5"},
          {"reference": "sssd-krb5-common"},
          {"reference": "sssd-ldap"},
          {"reference": "sssd-proxy"},
          {"reference": "sssd-tools"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "libipa-hbac-dev"},
          {"reference": "libipa-hbac0"},
          {"reference": "libnss-sss"},
          {"reference": "libpam-sss"},
          {"reference": "libsss-certmap-dev"},
          {"reference": "libsss-certmap0"},
          {"reference": "libsss-idmap-dev"},
          {"reference": "libsss-idmap0"},
          {"reference": "libsss-nss-idmap-dev"},
          {"reference": "libsss-nss-idmap0"},
          {"reference": "libsss-simpleifp-dev"},
          {"reference": "libsss-simpleifp0"},
          {"reference": "libsss-sudo"},
          {"reference": "libwbclient-sssd"},
          {"reference": "libwbclient-sssd-dev"},
          {"reference": "python-libipa-hbac"},
          {"reference": "python-libsss-nss-idmap"},
          {"reference": "python-sss"},
          {"reference": "python3-libipa-hbac"},
          {"reference": "python3-libsss-nss-idmap"},
          {"reference": "python3-sss"},
          {"reference": "sssd"},
          {"reference": "sssd-ad"},
          {"reference": "sssd-ad-common"},
          {"reference": "sssd-common"},
          {"reference": "sssd-dbus"},
          {"reference": "sssd-ipa"},
          {"reference": "sssd-kcm"},
          {"reference": "sssd-krb5"},
          {"reference": "sssd-krb5-common"},
          {"reference": "sssd-ldap"},
          {"reference": "sssd-proxy"},
          {"reference": "sssd-tools"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "libipa_hbac"},
          {"reference": "libipa_hbac-devel"},
          {"reference": "libipa_hbac-python"},
          {"reference": "libsss_autofs"},
          {"reference": "libsss_idmap"},
          {"reference": "libsss_idmap-devel"},
          {"reference": "libsss_nss_idmap"},
          {"reference": "libsss_nss_idmap-devel"},
          {"reference": "libsss_nss_idmap-python"},
          {"reference": "libsss_simpleifp"},
          {"reference": "libsss_simpleifp-devel"},
          {"reference": "libsss_sudo"},
          {"reference": "libsss_sudo-devel"},
          {"reference": "python-libipa_hbac"},
          {"reference": "python-libsss_nss_idmap"},
          {"reference": "python-sss"},
          {"reference": "python-sss-murmur"},
          {"reference": "python-sssdconfig"},
          {"reference": "sssd"},
          {"reference": "sssd-ad"},
          {"reference": "sssd-client"},
          {"reference": "sssd-common"},
          {"reference": "sssd-common-pac"},
          {"reference": "sssd-dbus"},
          {"reference": "sssd-ipa"},
          {"reference": "sssd-krb5"},
          {"reference": "sssd-krb5-common"},
          {"reference": "sssd-ldap"},
          {"reference": "sssd-proxy"},
          {"reference": "sssd-tools"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "libipa_hbac"},
          {"reference": "libipa_hbac-devel"},
          {"reference": "libipa_hbac-python"},
          {"reference": "libsss_autofs"},
          {"reference": "libsss_certmap"},
          {"reference": "libsss_certmap-devel"},
          {"reference": "libsss_idmap"},
          {"reference": "libsss_idmap-devel"},
          {"reference": "libsss_nss_idmap"},
          {"reference": "libsss_nss_idmap-devel"},
          {"reference": "libsss_nss_idmap-python"},
          {"reference": "libsss_simpleifp"},
          {"reference": "libsss_simpleifp-devel"},
          {"reference": "libsss_sudo"},
          {"reference": "python-libipa_hbac"},
          {"reference": "python-libsss_nss_idmap"},
          {"reference": "python-sss"},
          {"reference": "python-sss-murmur"},
          {"reference": "python-sssdconfig"},
          {"reference": "sssd"},
          {"reference": "sssd-ad"},
          {"reference": "sssd-client"},
          {"reference": "sssd-common"},
          {"reference": "sssd-common-pac"},
          {"reference": "sssd-dbus"},
          {"reference": "sssd-ipa"},
          {"reference": "sssd-kcm"},
          {"reference": "sssd-krb5"},
          {"reference": "sssd-krb5-common"},
          {"reference": "sssd-ldap"},
          {"reference": "sssd-libwbclient"},
          {"reference": "sssd-libwbclient-devel"},
          {"reference": "sssd-polkit-rules"},
          {"reference": "sssd-proxy"},
          {"reference": "sssd-tools"},
          {"reference": "sssd-winbind-idmap"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "libipa_hbac"},
          {"reference": "libipa_hbac-devel"},
          {"reference": "libipa_hbac-python"},
          {"reference": "libsss_autofs"},
          {"reference": "libsss_certmap"},
          {"reference": "libsss_certmap-devel"},
          {"reference": "libsss_idmap"},
          {"reference": "libsss_idmap-devel"},
          {"reference": "libsss_nss_idmap"},
          {"reference": "libsss_nss_idmap-devel"},
          {"reference": "libsss_nss_idmap-python"},
          {"reference": "libsss_simpleifp"},
          {"reference": "libsss_simpleifp-devel"},
          {"reference": "libsss_sudo"},
          {"reference": "python-libipa_hbac"},
          {"reference": "python-libsss_nss_idmap"},
          {"reference": "python-sss"},
          {"reference": "python-sss-murmur"},
          {"reference": "python-sssdconfig"},
          {"reference": "sssd"},
          {"reference": "sssd-ad"},
          {"reference": "sssd-client"},
          {"reference": "sssd-common"},
          {"reference": "sssd-common-pac"},
          {"reference": "sssd-dbus"},
          {"reference": "sssd-ipa"},
          {"reference": "sssd-kcm"},
          {"reference": "sssd-krb5"},
          {"reference": "sssd-krb5-common"},
          {"reference": "sssd-ldap"},
          {"reference": "sssd-libwbclient"},
          {"reference": "sssd-libwbclient-devel"},
          {"reference": "sssd-polkit-rules"},
          {"reference": "sssd-proxy"},
          {"reference": "sssd-tools"},
          {"reference": "sssd-winbind-idmap"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}