EulerOS Virtualization 3.0.2.6 : postgresql (EulerOS-SA-2023-1081)

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

include('compat.inc');

if (description)
{
  script_id(169619);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/06");

  script_cve_id("CVE-2020-25694", "CVE-2021-23214", "CVE-2021-23222");

  script_name(english:"EulerOS Virtualization 3.0.2.6 : postgresql (EulerOS-SA-2023-1081)");

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

  - A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before
    9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses
    the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-
    the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat
    from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2020-25694)

  - When the server is configured to use trust authentication with a clientcert requirement or to use cert
    authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first
    established, despite the use of SSL certificate verification and encryption. (CVE-2021-23214)

  - A man-in-the-middle attacker can inject false responses to the client's first few queries, despite the use
    of SSL certificate verification and encryption. (CVE-2021-23222)

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-2023-1081
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?71d58bbd");
  script_set_attribute(attribute:"solution", value:
"Update the affected postgresql packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:H/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:"cvss_score_source", value:"CVE-2020-25694");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-23214");

  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:"2020/11/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/01/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/01/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.6");
  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) 2023 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("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 (uvp != "3.0.2.6") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.6");
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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "x86" >!< cpu) audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

var flag = 0;

var pkgs = [
  "postgresql-libs-9.2.24-1.h4.eulerosv2r7"
];

foreach (var 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
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "postgresql");
}