EulerOS Virtualization 2.5.4 : sssd (EulerOS-SA-2019-1193)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(123879);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");

  script_cve_id("CVE-2018-10852");

  script_name(english:"EulerOS Virtualization 2.5.4 : sssd (EulerOS-SA-2019-1193)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the sssd packages installed, the EulerOS
Virtualization installation on the remote host is affected by the
following vulnerability :

  - The UNIX pipe which sudo uses to contact SSSD and read
    the available sudo rules from SSSD utilizes too broad
    of a set of permissions. Any user who can send a
    message using the same raw protocol that sudo and SSSD
    use can read the sudo rules available for any
    user.i1/4^CVE-2018-10852i1/4%0

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1193
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?609cc871");
  script_set_attribute(attribute:"solution", value:
"Update the affected sssd package.");
  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:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libipa_hbac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsss_autofs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsss_certmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsss_nss_idmap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libsss_sudo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-sssdconfig");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-ad");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-common-pac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-ipa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-krb5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:sssd-proxy");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.5.4");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.5.4") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.5.4");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["libipa_hbac-1.16.0-19.5.h3.eulerosv2r7",
        "libsss_autofs-1.16.0-19.5.h3.eulerosv2r7",
        "libsss_certmap-1.16.0-19.5.h3.eulerosv2r7",
        "libsss_idmap-1.16.0-19.5.h3.eulerosv2r7",
        "libsss_nss_idmap-1.16.0-19.5.h3.eulerosv2r7",
        "libsss_sudo-1.16.0-19.5.h3.eulerosv2r7",
        "python-sssdconfig-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-ad-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-client-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-common-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-common-pac-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-ipa-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-krb5-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-krb5-common-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-ldap-1.16.0-19.5.h3.eulerosv2r7",
        "sssd-proxy-1.16.0-19.5.h3.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "sssd");
}