The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5007 advisory.
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 Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-5007. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(176381);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/05/25");
script_cve_id("CVE-2021-23214", "CVE-2021-23222");
script_name(english:"Debian DSA-5007-1 : postgresql-13 - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dsa-5007 advisory.
- 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 Nessus has not tested for these issues 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://www.debian.org/security/2021/dsa-5007");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-23214");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-23222");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/postgresql-13");
script_set_attribute(attribute:"solution", value:
"Upgrade the postgresql-13 packages.
For the stable distribution (bullseye), these problems have been fixed in version 13.5-0+deb11u1.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:H/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-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:"2021/11/11");
script_set_attribute(attribute:"patch_publication_date", value:"2021/11/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/25");
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_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian 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/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': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'libecpg-dev', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'libecpg6', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'libpgtypes3', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'libpq-dev', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'libpq5', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-13', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-client-13', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-doc-13', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-plperl-13', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-plpython3-13', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-pltcl-13', 'reference': '13.5-0+deb11u1'},
{'release': '11.0', 'prefix': 'postgresql-server-dev-13', 'reference': '13.5-0+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_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, 'libecpg-compat3 / libecpg-dev / libecpg6 / libpgtypes3 / libpq-dev / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23214
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23222
www.nessus.org/u?1964ded4
packages.debian.org/source/bullseye/postgresql-13
security-tracker.debian.org/tracker/CVE-2021-23214
security-tracker.debian.org/tracker/CVE-2021-23222
www.debian.org/security/2021/dsa-5007