EulerOS Virtualization 3.0.6.6 : glibc (EulerOS-SA-2021-1477)

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

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

if (description)
{
  script_id(147592);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/16");

  script_cve_id(
    "CVE-2019-19126",
    "CVE-2019-25013"
  );

  script_name(english:"EulerOS Virtualization 3.0.6.6 : glibc (EulerOS-SA-2021-1477)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  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 glibc packages installed, the
EulerOS Virtualization installation on the remote host is affected by
the following vulnerabilities :

  - On the x86-64 architecture, the GNU C Library (aka
    glibc) before 2.31 fails to ignore the
    LD_PREFER_MAP_32BIT_EXEC environment variable during
    program execution after a security transition, allowing
    local attackers to restrict the possible mapping
    addresses for loaded libraries and thus bypass ASLR for
    a setuid program.(CVE-2019-19126)

  - The iconv feature in the GNU C Library (aka glibc or
    libc6) through 2.32, when processing invalid multi-byte
    input sequences in the EUC-KR encoding, may have a
    buffer over-read.(CVE-2019-25013)

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-2021-1477
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?75b1e6b1");
  script_set_attribute(attribute:"solution", value:
"Update the affected glibc packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/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-2019-19126");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:glibc-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:nscd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.6.6");
  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 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 != "3.0.6.6") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.6.6");
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 = ["glibc-2.17-222.h36.eulerosv2r7",
        "glibc-common-2.17-222.h36.eulerosv2r7",
        "glibc-devel-2.17-222.h36.eulerosv2r7",
        "glibc-headers-2.17-222.h36.eulerosv2r7",
        "glibc-static-2.17-222.h36.eulerosv2r7",
        "glibc-utils-2.17-222.h36.eulerosv2r7",
        "nscd-2.17-222.h36.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    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, "glibc");
}