openSUSE 15 Security Update : log4j (openSUSE-SU-2021:4107-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2021:4107-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(156139);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/05/01");

  script_cve_id("CVE-2021-44228", "CVE-2021-45046");
  script_xref(name:"IAVA", value:"2021-A-0573");
  script_xref(name:"IAVA", value:"0001-A-0650");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/12/24");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/05/22");
  script_xref(name:"CEA-ID", value:"CEA-2021-0052");
  script_xref(name:"CEA-ID", value:"CEA-2023-0004");

  script_name(english:"openSUSE 15 Security Update : log4j (openSUSE-SU-2021:4107-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in
the openSUSE-SU-2021:4107-1 advisory.

  - Apache Log4j2 2.0-beta9 through 2.12.1 and 2.13.0 through 2.15.0 JNDI features used in configuration, log
    messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints.
    An attacker who can control log messages or log message parameters can execute arbitrary code loaded from
    LDAP servers when message lookup substitution is enabled. From log4j 2.15.0, this behavior has been
    disabled by default. From version 2.16.0, this functionality has been completely removed. Note that this
    vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging
    Services projects. (CVE-2021-44228)

  - It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-
    default configurations. This could allows attackers with control over Thread Context Map (MDC) input data
    when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for
    example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input
    data using a JNDI Lookup pattern resulting in a denial of service (DOS) attack. Log4j 2.15.0 makes a best-
    effort attempt to restrict JNDI LDAP lookups to localhost by default. Log4j 2.16.0 fixes this issue by
    removing support for message lookup patterns and disabling JNDI functionality by default. (CVE-2021-45046)

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/1193743");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/PCJYMTCVZUNMRYAU55HAMIA6VB3BO7SY/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4cd38ff7");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-44228");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-45046");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-44228");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"CANVAS");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/12/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/12/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:disruptor");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:disruptor-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:jakarta-servlet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:jakarta-servlet-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:log4j");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:log4j-javadoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:log4j-jcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:log4j-slf4j");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.3");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 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('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
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':'disruptor-3.4.4-3.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'disruptor-javadoc-3.4.4-3.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jakarta-servlet-5.0.0-5.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'jakarta-servlet-javadoc-5.0.0-5.3.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'log4j-2.16.0-4.10.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'log4j-javadoc-2.16.0-4.10.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'log4j-jcl-2.16.0-4.10.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'log4j-slf4j-2.16.0-4.10.1', '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, 'disruptor / disruptor-javadoc / jakarta-servlet / etc');
}