EulerOS 2.0 SP8 : postgresql (EulerOS-SA-2021-2811)

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

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

if (description)
{
  script_id(156307);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/12/25");

  script_cve_id("CVE-2021-32028");
  script_xref(name:"IAVB", value:"2021-B-0036-S");

  script_name(english:"EulerOS 2.0 SP8 : postgresql (EulerOS-SA-2021-2811)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  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 :

  - A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted
    table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from
    this vulnerability is to data confidentiality. (CVE-2021-32028)

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-2021-2811
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?dc9db2a2");
  script_set_attribute(attribute:"solution", value:
"Update the affected postgresql packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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: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-2021-32028");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/12/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/25");

  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:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 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);

var release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "postgresql-10.5-3.h14.eulerosv2r8",
  "postgresql-contrib-10.5-3.h14.eulerosv2r8",
  "postgresql-devel-10.5-3.h14.eulerosv2r8",
  "postgresql-docs-10.5-3.h14.eulerosv2r8",
  "postgresql-libs-10.5-3.h14.eulerosv2r8",
  "postgresql-plperl-10.5-3.h14.eulerosv2r8",
  "postgresql-plpython-10.5-3.h14.eulerosv2r8",
  "postgresql-pltcl-10.5-3.h14.eulerosv2r8",
  "postgresql-server-10.5-3.h14.eulerosv2r8",
  "postgresql-test-10.5-3.h14.eulerosv2r8"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) flag++;

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