NewStart CGSL CORE 5.04 / MAIN 5.04 : 389-ds-base Vulnerability (NS-SA-2019-0181)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0181. The text
# itself is copyright (C) ZTE, Inc.

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

if (description)
{
  script_id(129898);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2019-3883");

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : 389-ds-base Vulnerability (NS-SA-2019-0181)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has 389-ds-base packages installed that are
affected by a vulnerability:

  - In 389-ds-base up to version 1.4.1.2, requests are
    handled by workers threads. Each sockets will be waited
    by the worker for at most 'ioblocktimeout' seconds.
    However this timeout applies only for un-encrypted
    requests. Connections using SSL/TLS are not taking this
    timeout into account during reads, and may hang
    longer.An unauthenticated attacker could repeatedly
    create hanging LDAP requests to hang all the workers,
    resulting in a Denial of Service. (CVE-2019-3883)

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:"http://security.gd-linux.com/notice/NS-SA-2019-0181");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL 389-ds-base packages. Note that updated packages may not be available yet. Please contact
ZTE for more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:L/PR:N/UI:N/S:U/C:N/I:N/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-2019-3883");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.04" &&
    release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');

if (!get_kb_item("Host/ZTE-CGSL/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.04": [
    "389-ds-base-1.3.8.4-25.1.el7_6",
    "389-ds-base-debuginfo-1.3.8.4-25.1.el7_6",
    "389-ds-base-devel-1.3.8.4-25.1.el7_6",
    "389-ds-base-libs-1.3.8.4-25.1.el7_6",
    "389-ds-base-snmp-1.3.8.4-25.1.el7_6",
    "389-ds-base-tests-1.3.8.4-25.1.el7_6"
  ],
  "CGSL MAIN 5.04": [
    "389-ds-base-1.3.8.4-25.1.el7_6",
    "389-ds-base-debuginfo-1.3.8.4-25.1.el7_6",
    "389-ds-base-devel-1.3.8.4-25.1.el7_6",
    "389-ds-base-libs-1.3.8.4-25.1.el7_6",
    "389-ds-base-snmp-1.3.8.4-25.1.el7_6",
    "389-ds-base-tests-1.3.8.4-25.1.el7_6"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "389-ds-base");
}