Virtuozzo 6 : parallels-server-bm-release / etc (VZA-2018-017)

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

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

if (description)
{
  script_id(108596);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id(
    "CVE-2017-18017",
    "CVE-2018-5332",
    "CVE-2018-5333"
  );

  script_name(english:"Virtuozzo 6 : parallels-server-bm-release / etc (VZA-2018-017)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Virtuozzo host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the parallels-server-bm-release / etc
packages installed, the Virtuozzo installation on the remote host is
affected by the following vulnerabilities :

  - In the Linux kernel through 4.14.13, the
    rds_message_alloc_sgs() function does not validate a
    value that is used during DMA page allocation, leading
    to a heap-based out-of-bounds write (related to the
    rds_rdma_extra_size() function in 'net/rds/rdma.c') and
    thus to a system panic.

  - The rds_cmsg_atomic() function in 'net/rds/rdma.c'
    mishandles cases where page pinning fails or an invalid
    address is supplied by a user. This can lead to a NULL
    pointer dereference in rds_atomic_free_op() and thus to
    a system panic.

  - The tcpmss_mangle_packet function in
    net/netfilter/xt_TCPMSS.c allows remote attackers to
    cause a denial of service (use-after-free and memory
    corruption) or possibly have unspecified other impact
    by leveraging the presence of xt_TCPMSS in an iptables
    action.

Note that Tenable Network Security has extracted the preceding
description block directly from the Virtuozzo security advisory.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://help.virtuozzo.com/customer/portal/articles/2930690");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHBA-2018:0513");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:0169");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:0512");
  script_set_attribute(attribute:"solution", value:
"Update the affected parallels-server-bm-release / etc packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/03/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/03/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:parallels-server-bm-release");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:pstorage-chunk-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:pstorage-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:pstorage-ctl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:pstorage-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:pstorage-libs-shared");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:pstorage-metadata-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzkernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzkernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzkernel-firmware");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzmodules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzmodules-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:virtuozzo:virtuozzo:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Virtuozzo Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Virtuozzo/release", "Host/Virtuozzo/rpm-list");

  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/Virtuozzo/release");
if (isnull(release) || "Virtuozzo" >!< release) audit(AUDIT_OS_NOT, "Virtuozzo");
os_ver = pregmatch(pattern: "Virtuozzo Linux release ([0-9]+\.[0-9])(\D|$)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Virtuozzo 6.x", "Virtuozzo " + os_ver);

if (!get_kb_item("Host/Virtuozzo/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, "Virtuozzo", cpu);

flag = 0;

pkgs = ["parallels-server-bm-release-6.0.12-3701",
        "pstorage-chunk-server-6.0.12-8",
        "pstorage-client-6.0.12-8",
        "pstorage-ctl-6.0.12-8",
        "pstorage-iscsi-6.0.12-8",
        "pstorage-libs-shared-6.0.12-8",
        "pstorage-metadata-server-6.0.12-8",
        "vzkernel-2.6.32-042stab128.2",
        "vzkernel-devel-2.6.32-042stab128.2",
        "vzkernel-firmware-2.6.32-042stab128.2",
        "vzmodules-2.6.32-042stab128.2",
        "vzmodules-devel-2.6.32-042stab128.2"];

foreach (pkg in pkgs)
  if (rpm_check(release:"Virtuozzo-6", 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, "parallels-server-bm-release / etc");
}