RHEL 7 : sssd (RHSA-2018:3158)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:3158. The text 
# itself is copyright (C) Red Hat, Inc.
#

include('compat.inc');

if (description)
{
  script_id(118533);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/02/01");

  script_cve_id("CVE-2018-10852");
  script_xref(name:"RHSA", value:"2018:3158");

  script_name(english:"RHEL 7 : sssd (RHSA-2018:3158)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"An update for sssd is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Low. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link (s) in the References section.

The System Security Services Daemon (SSSD) service provides a set of
daemons to manage access to remote directories and authentication
mechanisms. It also provides the Name Service Switch (NSS) and the
Pluggable Authentication Modules (PAM) interfaces toward the system,
and a pluggable back-end system to connect to multiple different
account sources.

The following packages have been upgraded to a later upstream version:
sssd (1.16.2). (BZ#1558498)

Security Fix(es) :

* sssd: information leak from the sssd-sudo responder (CVE-2018-10852)

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.

This issue was discovered by Jakub Hrozek (Red Hat).

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.6 Release Notes linked from the References section.");
  # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3395ff0b");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:3158");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2018-10852");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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-2018-10852");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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");
  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_simpleifp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_simpleifp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsss_sudo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-libsss_nss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-sss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-sss-murmur");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-sssdconfig");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-ad");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-common-pac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-dbus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-ipa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-kcm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-krb5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-libwbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-libwbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-polkit-rules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-proxy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sssd-winbind-idmap");
  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) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) 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);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2018:3158";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", reference:"libipa_hbac-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libipa_hbac-devel-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"libsss_autofs-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"libsss_autofs-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_certmap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_certmap-devel-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_idmap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_idmap-devel-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_nss_idmap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_nss_idmap-devel-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_simpleifp-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"libsss_simpleifp-devel-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"libsss_sudo-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"libsss_sudo-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-libipa_hbac-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"python-libipa_hbac-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-libsss_nss_idmap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"python-libsss_nss_idmap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-sss-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"python-sss-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-sss-murmur-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"python-sss-murmur-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"python-sssdconfig-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-ad-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-ad-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"sssd-client-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-common-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-common-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-common-pac-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-common-pac-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-dbus-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-dbus-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"sssd-debuginfo-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-ipa-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-ipa-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-kcm-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-kcm-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-krb5-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-krb5-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-krb5-common-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-krb5-common-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-ldap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-ldap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-libwbclient-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-libwbclient-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"sssd-libwbclient-devel-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-polkit-rules-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-polkit-rules-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-proxy-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-proxy-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-tools-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-tools-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"sssd-winbind-idmap-1.16.2-13.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"sssd-winbind-idmap-1.16.2-13.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libipa_hbac / libipa_hbac-devel / libsss_autofs / libsss_certmap / etc");
  }
}