EulerOS Virtualization for ARM 64 3.0.6.0 : openldap (EulerOS-SA-2021-2004)

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

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

if (description)
{
  script_id(151166);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/12");

  script_cve_id(
    "CVE-2020-36221",
    "CVE-2020-36222",
    "CVE-2020-36223",
    "CVE-2020-36224",
    "CVE-2020-36225",
    "CVE-2020-36226",
    "CVE-2020-36227",
    "CVE-2020-36228",
    "CVE-2020-36229",
    "CVE-2020-36230",
    "CVE-2021-27212"
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.6.0 : openldap (EulerOS-SA-2021-2004)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the openldap packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :

  - In OpenLDAP through 2.4.57 and 2.5.x through
    2.5.1alpha, an assertion failure in slapd can occur in
    the issuerAndThisUpdateCheck function via a crafted
    packet, resulting in a denial of service (daemon exit)
    via a short timestamp. This is related to schema_init.c
    and checkTime.(CVE-2021-27212)

  - An integer underflow was discovered in OpenLDAP before
    2.4.57 leading to slapd crashes in the Certificate
    Exact Assertion processing, resulting in denial of
    service (schema_init.c
    serialNumberAndIssuerCheck).(CVE-2020-36221)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    to an assertion failure in slapd in the saslAuthzTo
    validation, resulting in denial of
    service.(CVE-2020-36222)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    to a slapd crash in the Values Return Filter control
    handling, resulting in denial of service (double free
    and out-of-bounds read).(CVE-2020-36223)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    to an invalid pointer free and slapd crash in the
    saslAuthzTo processing, resulting in denial of
    service.(CVE-2020-36224)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    to a double free and slapd crash in the saslAuthzTo
    processing, resulting in denial of
    service.(CVE-2020-36225)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    to a memch->bv_len miscalculation and slapd crash in
    the saslAuthzTo processing, resulting in denial of
    service.(CVE-2020-36226)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    to an infinite loop in slapd with the cancel_extop
    Cancel operation, resulting in denial of
    service.(CVE-2020-36227)

  - An integer underflow was discovered in OpenLDAP before
    2.4.57 leading to a slapd crash in the Certificate List
    Exact Assertion processing, resulting in denial of
    service.(CVE-2020-36228)

  - A flaw was discovered in ldap_X509dn2bv in OpenLDAP
    before 2.4.57 leading to a slapd crash in the X.509 DN
    parsing in ad_keystring, resulting in denial of
    service.(CVE-2020-36229)

  - A flaw was discovered in OpenLDAP before 2.4.57 leading
    in an assertion failure in slapd in the X.509 DN
    parsing in decode.c ber_next_element, resulting in
    denial of service.(CVE-2020-36230)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2004
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?67708fa5");
  script_set_attribute(attribute:"solution", value:
"Update the affected openldap packages.");
  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: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-2021-27212");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openldap-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openldap-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openldap-servers");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.6.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Huawei 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/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.6.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.6.0");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["openldap-2.4.46-8.h12.eulerosv2r8",
        "openldap-clients-2.4.46-8.h12.eulerosv2r8",
        "openldap-devel-2.4.46-8.h12.eulerosv2r8",
        "openldap-servers-2.4.46-8.h12.eulerosv2r8"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", 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, "openldap");
}