EulerOS 2.0 SP3 : rsyslog (EulerOS-SA-2019-1104)

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

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

if (description)
{
  script_id(123117);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/12");

  script_cve_id("CVE-2018-16881");

  script_name(english:"EulerOS 2.0 SP3 : rsyslog (EulerOS-SA-2019-1104)");

  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 rsyslog packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerability :

  - A denial of service vulnerability was found in rsyslog
    in the imptcp module. An attacker could send a
    specially crafted message to the imptcp socket, which
    would cause rsyslog to crash.(CVE-2018-16881)

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-2019-1104
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?678912ac");
  script_set_attribute(attribute:"solution", value:
"Update the affected rsyslog package.");
  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-2018-16881");

  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:"2019/03/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog-gnutls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog-gssapi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog-mmjsonparse");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rsyslog-relp");
  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 !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "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 = ["rsyslog-7.4.7-7.2.h18",
        "rsyslog-gnutls-7.4.7-7.2.h18",
        "rsyslog-gssapi-7.4.7-7.2.h18",
        "rsyslog-mmjsonparse-7.4.7-7.2.h18",
        "rsyslog-mysql-7.4.7-7.2.h18",
        "rsyslog-pgsql-7.4.7-7.2.h18",
        "rsyslog-relp-7.4.7-7.2.h18"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"3", 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, "rsyslog");
}