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nessusThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.ORACLEVM_OVMSA-2018-0040.NASL
HistoryMay 10, 2018 - 12:00 a.m.

OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0040)

2018-05-1000:00:00
This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
27

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

31.1%

The remote OracleVM system is missing necessary patches to address critical security updates :

  • vhost/scsi: fix reuse of &vq->iov[out] in response (Benjamin Coddington) [Orabug: 27928330]

  • kernel.spec: add requires system-release for OL7 (Brian Maly)

  • x86/kernel/traps.c: fix trace_die_notifier return value (Kris Van Hees) (CVE-2018-8897)

  • x86/entry/64: Don’t use IST entry for #BP stack (Andy Lutomirski) (CVE-2018-8897)

  • kvm/x86: fix icebp instruction handling (CVE-2018-1087)

#
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2018-0040.
#

include("compat.inc");

if (description)
{
  script_id(109667);
  script_version("1.8");
  script_cvs_date("Date: 2019/09/27 13:00:35");

  script_cve_id("CVE-2018-1087", "CVE-2018-8897");

  script_name(english:"OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0040)");
  script_summary(english:"Checks the RPM output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote OracleVM host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote OracleVM system is missing necessary patches to address
critical security updates :

  - vhost/scsi: fix reuse of &vq->iov[out] in response
    (Benjamin Coddington) [Orabug: 27928330]

  - kernel.spec: add requires system-release for OL7 (Brian
    Maly) 

  - x86/kernel/traps.c: fix trace_die_notifier return value
    (Kris Van Hees) (CVE-2018-8897)

  - x86/entry/64: Don't use IST entry for #BP stack (Andy
    Lutomirski) (CVE-2018-8897)

  - kvm/x86: fix icebp instruction handling (CVE-2018-1087)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2018-May/000851.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel-uek / kernel-uek-firmware packages."
  );
  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:H/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:H/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:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Microsoft Windows POP/MOV SS Local Privilege Elevation Vulnerability');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:kernel-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:kernel-uek-firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"OracleVM Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/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/OracleVM/release");
if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release);
if (!get_kb_item("Host/OracleVM/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, "OracleVM", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"OVS3.4", reference:"kernel-uek-4.1.12-124.14.5.el6uek")) flag++;
if (rpm_check(release:"OVS3.4", reference:"kernel-uek-firmware-4.1.12-124.14.5.el6uek")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel-uek / kernel-uek-firmware");
}
VendorProductVersionCPE
oraclevmkernel-uekp-cpe:/a:oracle:vm:kernel-uek
oraclevm_server3.4cpe:/o:oracle:vm_server:3.4
oraclevmkernel-uek-firmwarep-cpe:/a:oracle:vm:kernel-uek-firmware

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

31.1%