EulerOS Virtualization 3.0.2.2 : openssl (EulerOS-SA-2020-1444)

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

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

if (description)
{
  script_id(135606);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/18");

  script_cve_id("CVE-2019-1551", "CVE-2019-1552");

  script_name(english:"EulerOS Virtualization 3.0.2.2 : openssl (EulerOS-SA-2020-1444)");

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

  - OpenSSL has internal defaults for a directory tree
    where it can find a configuration file as well as
    certificates used for verification in TLS. This
    directory is most commonly referred to as OPENSSLDIR,
    and is configurable with the --prefix / --openssldir
    configuration options. For OpenSSL versions 1.1.0 and
    1.1.1, the mingw configuration targets assume that
    resulting programs and libraries are installed in a
    Unix-like environment and the default prefix for
    program installation as well as for OPENSSLDIR should
    be '/usr/local'. However, mingw programs are Windows
    programs, and as such, find themselves looking at
    sub-directories of 'C:/usr/local', which may be world
    writable, which enables untrusted users to modify
    OpenSSL's default configuration, insert CA
    certificates, modify (or even replace) existing engine
    modules, etc. For OpenSSL 1.0.2, '/usr/local/ssl' is
    used as default for OPENSSLDIR on all Unix and Windows
    targets, including Visual C builds. However, some build
    instructions for the diverse Windows targets on 1.0.2
    encourage you to specify your own --prefix. OpenSSL
    versions 1.1.1, 1.1.0 and 1.0.2 are affected by this
    issue. Due to the limited scope of affected deployments
    this has been assessed as low severity and therefore we
    are not creating new releases at this time. Fixed in
    OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in
    OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in
    OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).(CVE-2019-1552)

  - An integer overflow was found in the x64_64 Montgomery
    squaring procedure used in exponentiation with 512-bit
    moduli. As per upstream: * No EC algorithms are
    affected. * Attacks against 2-prime RSA1024, 3-prime
    RSA1536, and DSA1024 as a result of this defect would
    be very difficult to perform and are not believed
    likely. * Attacks against DH512 are considered just
    feasible. However, for an attack the target would have
    to re-use the DH512 private key, which is not
    recommended anyway. * Also applications directly using
    the low level API BN_mod_exp may be affected if they
    use BN_FLG_CONSTTIME(CVE-2019-1551)

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-2020-1444
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?73c2df80");
  script_set_attribute(attribute:"solution", value:
"Update the affected openssl packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1551");

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

  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:openssl-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.2");
  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) 2020-2024 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 != "3.0.2.2") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.2");
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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["openssl-1.0.2k-16.h9.eulerosv2r7",
        "openssl-devel-1.0.2k-16.h9.eulerosv2r7",
        "openssl-libs-1.0.2k-16.h9.eulerosv2r7"];

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, "openssl");
}