EulerOS 2.0 SP5 : systemd (EulerOS-SA-2019-1045)

2019-02-15T00:00:00
ID EULEROS_SA-2019-1045.NASL
Type nessus
Reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-04-02T00:00:00

Description

According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  • systemd: Out-of-bounds heap write in systemd-networkd dhcpv6 option handling (CVE-2018-15688)

  • systemd: stack overflow when calling syslog from a command with long cmdline (CVE-2018-16864)

  • systemd: stack overflow when receiving many journald entries (CVE-2018-16865)

  • systemd: Assertion failure when PID 1 receives a zero-length message over notify socket(CVE-2016-7795)

  • systemd: Unsafe handling of hard links allowing privilege escalation(CVE-2017-18078)

  • systemd: Out-of-bounds write in systemd-resolved due to allocating too small buffer in dns_packet_new(CVE-2017-9445)

  • systemd: memory leak in journald-server.c introduced by fix for CVE-2018-16864 (CVE-2019-3815)

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(122218);
  script_version("1.4");
  script_cvs_date("Date: 2019/06/27 13:33:24");

  script_cve_id(
    "CVE-2016-7795",
    "CVE-2017-18078",
    "CVE-2017-9445",
    "CVE-2018-15688",
    "CVE-2018-16864",
    "CVE-2018-16865",
    "CVE-2019-3815"
  );

  script_name(english:"EulerOS 2.0 SP5 : systemd (EulerOS-SA-2019-1045)");
  script_summary(english:"Checks the rpm output for the updated packages.");

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

  - systemd: Out-of-bounds heap write in systemd-networkd
    dhcpv6 option handling (CVE-2018-15688)

  - systemd: stack overflow when calling syslog from a
    command with long cmdline (CVE-2018-16864)

  - systemd: stack overflow when receiving many journald
    entries (CVE-2018-16865)

  - systemd: Assertion failure when PID 1 receives a
    zero-length message over notify socket(CVE-2016-7795)

  - systemd: Unsafe handling of hard links allowing
    privilege escalation(CVE-2017-18078)

  - systemd: Out-of-bounds write in systemd-resolved due to
    allocating too small buffer in
    dns_packet_new(CVE-2017-9445)

  - systemd: memory leak in journald-server.c introduced by
    fix for CVE-2018-16864 (CVE-2019-3815)

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-2019-1045
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e6909a6e");
  script_set_attribute(attribute:"solution", value:
"Update the affected systemd packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  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:"2019/01/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-sysv");
  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 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 !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);

flag = 0;

pkgs = ["systemd-219-57.h71.eulerosv2r7",
        "systemd-devel-219-57.h71.eulerosv2r7",
        "systemd-libs-219-57.h71.eulerosv2r7",
        "systemd-python-219-57.h71.eulerosv2r7",
        "systemd-sysv-219-57.h71.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"5", 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, "systemd");
}