Debian dla-4052 : libecpg-compat3 - 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-4052. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(216248);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/16");

  script_cve_id("CVE-2025-1094");
  script_xref(name:"IAVB", value:"2025-B-0028-S");

  script_name(english:"Debian dla-4052 : libecpg-compat3 - 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 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4052
advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4052-2                [email protected]
    https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
    February 21, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : postgresql-13
    Version        : 13.20-0+deb11u1
    CVE ID         : CVE-2025-1094

    The fix for CVE-2025-1094 included an error that caused the
    PQescapeLiteral and PQescapeIdentifier methods to ignore their
    length parameter, reading until the null terminating byte instead.
    That could cause unintended characters to be included on the output,
    or worse, buffer overflows.

    For Debian 11 bullseye, this problem has been fixed in version
    13.20-0+deb11u1.

    We recommend that you upgrade your postgresql-13 packages.

    For the detailed security status of postgresql-13 please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/postgresql-13

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/postgresql-13
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1964ded4");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-1094");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/postgresql-13");
  script_set_attribute(attribute:"solution", value:
"Upgrade the libecpg-compat3 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-1094");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) unauthenticated Remote Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/02/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/02/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libecpg-compat3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libecpg-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libecpg6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpgtypes3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpq-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpq5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-client-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-doc-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-plperl-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-plpython3-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-pltcl-13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-server-dev-13");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 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:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', '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': '11.0', 'prefix': 'libecpg-compat3', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libecpg-dev', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libecpg6', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libpgtypes3', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libpq-dev', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'libpq5', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-13', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-client-13', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-doc-13', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-plperl-13', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-plpython3-13', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-pltcl-13', 'reference': '13.20-0+deb11u1'},
    {'release': '11.0', 'prefix': 'postgresql-server-dev-13', 'reference': '13.20-0+deb11u1'}
];

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_HOLE,
    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, 'libecpg-compat3 / libecpg-dev / libecpg6 / libpgtypes3 / libpq-dev / etc');
}