Lucene search

K
nessusThis script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2018-1690.NASL
HistoryMay 24, 2018 - 12:00 a.m.

RHEL 7 : Virtualization (RHSA-2018:1690) (Spectre)

2018-05-2400:00:00
This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
10

An update for vdsm is now available for RHEV 3.X Hypervisor and Agents Extended Lifecycle Support for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host’s storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.

Security Fix(es) :

  • An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor’s data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)

Note: This is the VDSM side of the CVE-2018-3639 mitigation.

Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:1690. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(110081);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/15");

  script_cve_id("CVE-2018-3639");
  script_xref(name:"RHSA", value:"2018:1690");
  script_xref(name:"IAVA", value:"2018-A-0170");

  script_name(english:"RHEL 7 : Virtualization (RHSA-2018:1690) (Spectre)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"An update for vdsm is now available for RHEV 3.X Hypervisor and Agents
Extended Lifecycle Support for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The VDSM service is required by a Virtualization Manager to manage the
Linux hosts. VDSM manages and monitors the host's storage, memory and
networks as well as virtual machine creation, other host
administration tasks, statistics gathering, and log collection.

Security Fix(es) :

* An industry-wide issue was found in the way many modern
microprocessor designs have implemented speculative execution of Load
& Store instructions (a commonly used performance optimization). It
relies on the presence of a precisely-defined instruction sequence in
the privileged code as well as the fact that memory read from address
to which a recent memory write has occurred may see an older value and
subsequently cause an update into the microprocessor's data cache even
for speculatively executed instructions that never actually commit
(retire). As a result, an unprivileged attacker could use this flaw to
read privileged memory by conducting targeted cache side-channel
attacks. (CVE-2018-3639)

Note: This is the VDSM side of the CVE-2018-3639 mitigation.

Red Hat would like to thank Ken Johnson (Microsoft Security Response
Center) and Jann Horn (Google Project Zero) for reporting this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/vulnerabilities/ssbd"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2018:1690"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-3639"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected 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:POC/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:N/A:N");
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-debug-plugin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-hook-ethtool-options");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-hook-fcoe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-hook-macspoof");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-hook-openstacknet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-hook-vhostmd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-hook-vmfex-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-infra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-jsonrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-xmlrpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vdsm-yajsonrpc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/24");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2018:1690";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;

  if (! (rpm_exists(release:"RHEL7", rpm:"vdsm-4.17"))) audit(AUDIT_PACKAGE_NOT_INSTALLED, "Virtualization");

  if (rpm_check(release:"RHEL7", reference:"vdsm-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-cli-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-debug-plugin-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-hook-ethtool-options-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-hook-fcoe-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-hook-macspoof-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-hook-openstacknet-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-hook-vhostmd-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-hook-vmfex-dev-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-infra-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-jsonrpc-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-python-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-xmlrpc-4.17.45-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"vdsm-yajsonrpc-4.17.45-1.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "vdsm / vdsm-cli / vdsm-debug-plugin / vdsm-hook-ethtool-options / etc");
  }
}
VendorProductVersionCPE
redhatenterprise_linuxvdsmp-cpe:/a:redhat:enterprise_linux:vdsm
redhatenterprise_linuxvdsm-clip-cpe:/a:redhat:enterprise_linux:vdsm-cli
redhatenterprise_linuxvdsm-debug-pluginp-cpe:/a:redhat:enterprise_linux:vdsm-debug-plugin
redhatenterprise_linuxvdsm-hook-ethtool-optionsp-cpe:/a:redhat:enterprise_linux:vdsm-hook-ethtool-options
redhatenterprise_linuxvdsm-hook-fcoep-cpe:/a:redhat:enterprise_linux:vdsm-hook-fcoe
redhatenterprise_linuxvdsm-hook-macspoofp-cpe:/a:redhat:enterprise_linux:vdsm-hook-macspoof
redhatenterprise_linuxvdsm-hook-openstacknetp-cpe:/a:redhat:enterprise_linux:vdsm-hook-openstacknet
redhatenterprise_linuxvdsm-hook-vhostmdp-cpe:/a:redhat:enterprise_linux:vdsm-hook-vhostmd
redhatenterprise_linuxvdsm-hook-vmfex-devp-cpe:/a:redhat:enterprise_linux:vdsm-hook-vmfex-dev
redhatenterprise_linuxvdsm-infrap-cpe:/a:redhat:enterprise_linux:vdsm-infra
Rows per page:
1-10 of 151