openSUSE 15 Security Update : lighttpd (openSUSE-SU-2022:10132-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2022:10132-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(165586);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/10");

  script_cve_id("CVE-2022-37797");

  script_name(english:"openSUSE 15 Security Update : lighttpd (openSUSE-SU-2022:10132-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SUSE15 host has packages installed that are affected by a vulnerability as referenced in the
openSUSE-SU-2022:10132-1 advisory.

  - In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request
    (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could
    be used by an external attacker to cause denial of service condition. (CVE-2022-37797)

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://bugzilla.suse.com/1203358");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/ATUOJQDWIRALBMVI5GOSOGPZP5AWVAZF/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5a69d85a");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-37797");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-37797");

  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:"2022/09/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/09/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/09/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_authn_gssapi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_authn_ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_authn_pam");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_authn_sasl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_magnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_maxminddb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_rrdtool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_vhostdb_dbi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_vhostdb_ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_vhostdb_mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_vhostdb_pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:lighttpd-mod_webdav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.3");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE 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/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  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/SuSE/release');
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
var os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
os_ver = os_ver[1];
if (release !~ "^(SUSE15\.3)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.3', release);
if (!get_kb_item("Host/SuSE/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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'openSUSE ' + os_ver, cpu);

var pkgs = [
    {'reference':'lighttpd-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_authn_gssapi-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_authn_ldap-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_authn_pam-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_authn_sasl-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_magnet-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_maxminddb-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_rrdtool-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_vhostdb_dbi-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_vhostdb_ldap-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_vhostdb_mysql-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_vhostdb_pgsql-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'lighttpd-mod_webdav-1.4.66-bp154.2.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE}
];

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

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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, 'lighttpd / lighttpd-mod_authn_gssapi / lighttpd-mod_authn_ldap / etc');
}