Debian DLA-3218-1 : libpgjava - LTS security update

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3218. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(168385);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/20");

  script_cve_id("CVE-2022-41946");

  script_name(english:"Debian DLA-3218-1 : libpgjava - LTS security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3218
advisory.

  - pgjdbc is an open source postgresql JDBC Driver. In affected versions a prepared statement using either
    `PreparedStatement.setText(int, InputStream)` or `PreparedStatemet.setBytea(int, InputStream)` will create
    a temporary file if the InputStream is larger than 2k. This will create a temporary file which is readable
    by other users on Unix like systems, but not MacOS. On Unix like systems, the system's temporary directory
    is shared between all users on that system. Because of this, when files and directories are written into
    this directory they are, by default, readable by other users on that same system. This vulnerability does
    not allow other users to overwrite the contents of these directories or files. This is purely an
    information disclosure vulnerability. Because certain JDK file system APIs were only added in JDK 1.7,
    this this fix is dependent upon the version of the JDK you are using. Java 1.7 and higher users: this
    vulnerability is fixed in 4.5.0. Java 1.6 and lower users: no patch is available. If you are unable to
    patch, or are stuck running on Java 1.6, specifying the java.io.tmpdir system environment variable to a
    directory that is exclusively owned by the executing user will mitigate this vulnerability.
    (CVE-2022-41946)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/libpgjava");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2022/dla-3218");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-41946");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/libpgjava");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libpgjava packages.

For Debian 10 buster, this problem has been fixed in version 42.2.5-2+deb10u3.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-41946");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpostgresql-jdbc-java");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpostgresql-jdbc-java-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
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, 'Debian', cpu);

var pkgs = [
    {'release': '10.0', 'prefix': 'libpostgresql-jdbc-java', 'reference': '42.2.5-2+deb10u3'},
    {'release': '10.0', 'prefix': 'libpostgresql-jdbc-java-doc', 'reference': '42.2.5-2+deb10u3'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libpostgresql-jdbc-java / libpostgresql-jdbc-java-doc');
}