EulerOS 2.0 SP1 : postgresql (EulerOS-SA-2017-1231)

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

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

if (description)
{
  script_id(103733);
  script_version("3.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id(
    "CVE-2017-7546",
    "CVE-2017-7547"
  );

  script_name(english:"EulerOS 2.0 SP1 : postgresql (EulerOS-SA-2017-1231)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the postgresql packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - It was found that authenticating to a PostgreSQL
    database account with an empty password was possible
    despite libpq's refusal to send an empty password. A
    remote attacker could potentially use this flaw to gain
    access to database accounts with empty passwords.
    (CVE-2017-7546)

  - An authorization flaw was found in the way PostgreSQL
    handled access to the pg_user_mappings view on foreign
    servers. A remote, authenticated attacker could
    potentially use this flaw to retrieve passwords from
    the user mappings defined by the foreign server owners
    without actually having the privileges to do so.
    (CVE-2017-7547)

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-2017-1231
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e1a6baeb");
  script_set_attribute(attribute:"solution", value:
"Update the affected postgresql packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-contrib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-plperl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-plpython");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-pltcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-test");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  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) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("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");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(1)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1", "EulerOS UVP " + uvp);

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 = ["postgresql-9.2.23-1",
        "postgresql-contrib-9.2.23-1",
        "postgresql-devel-9.2.23-1",
        "postgresql-docs-9.2.23-1",
        "postgresql-libs-9.2.23-1",
        "postgresql-plperl-9.2.23-1",
        "postgresql-plpython-9.2.23-1",
        "postgresql-pltcl-9.2.23-1",
        "postgresql-server-9.2.23-1",
        "postgresql-test-9.2.23-1"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"1", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "postgresql");
}