EulerOS 2.0 SP2 : rpm (EulerOS-SA-2019-2384)

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

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

if (description)
{
  script_id(131876);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/04");

  script_cve_id("CVE-2017-7500");

  script_name(english:"EulerOS 2.0 SP2 : rpm (EulerOS-SA-2019-2384)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the rpm packages installed, the EulerOS
installation on the remote host is affected by the following
vulnerability :

  - It was found that rpm did not properly handle RPM
    installations when a destination path was a symbolic
    link to a directory, possibly changing ownership and
    permissions of an arbitrary directory, and RPM files
    being placed in an arbitrary destination. An attacker,
    with write access to a directory in which a
    subdirectory will be installed, could redirect that
    directory to an arbitrary location and gain root
    privilege.(CVE-2017-7500)

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-2019-2384
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7e7740ef");
  script_set_attribute(attribute:"solution", value:
"Update the affected rpm package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  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:H/I:H/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-2017-7500");

  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:"2019/12/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-build-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-sign");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  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) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("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");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);

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 = ["rpm-4.11.3-17.h5",
        "rpm-build-4.11.3-17.h5",
        "rpm-build-libs-4.11.3-17.h5",
        "rpm-devel-4.11.3-17.h5",
        "rpm-libs-4.11.3-17.h5",
        "rpm-python-4.11.3-17.h5",
        "rpm-sign-4.11.3-17.h5"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"2", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "rpm");
}