SuSE 11.1 Security Update : Xen (SAT Patch Number 6399) - Nessus

High Plugin ID: 64233

This page contains detailed information about the SuSE 11.1 Security Update : Xen (SAT Patch Number 6399) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 64233
Name: SuSE 11.1 Security Update : Xen (SAT Patch Number 6399)
Filename: suse_11_xen-201206-120606.nasl
Vulnerability Published: N/A
This Plugin Published: 2013-01-25
Last Modification Time: 2021-01-19
Plugin Version: 1.6
Plugin Type: local
Plugin Family: SuSE Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list

Vulnerability Information

Synopsis

The remote SuSE 11 host is missing one or more security updates.

Description

Three security issues were found in XEN.

Two security issues are fixed by this update :

- Due to incorrect fault handling in the XEN hypervisor it was possible for a XEN guest domain administrator to execute code in the XEN host environment. (CVE-2012-0217)

- Also a guest user could crash the guest XEN kernel due to a protection fault bounce. The third fix is changing the Xen behaviour on certain hardware:. (CVE-2012-0218)

- The issue is a denial of service issue on older pre-SVM AMD CPUs (AMD Erratum 121). AMD Erratum #121 is described in 'Revision Guide for AMD Athlon 64 and AMD Opteron Processors': http://support.amd.com/us/Processor_TechDocs/25759.pdf. (CVE-2012-2934)

The following 130nm and 90nm (DDR1-only) AMD processors are subject to this erratum :

- First-generation AMD-Opteron(tm) single and dual core processors in either 939 or 940 packages :

- AMD Opteron(tm) 100-Series Processors

- AMD Opteron(tm) 200-Series Processors

- AMD Opteron(tm) 800-Series Processors

- AMD Athlon(tm) processors in either 754, 939 or 940 packages

- AMD Sempron(tm) processor in either 754 or 939 packages

- AMD Turion(tm) Mobile Technology in 754 package This issue does not effect Intel processors.

The impact of this flaw is that a malicious PV guest user can halt the host system.

As this is a hardware flaw, it is not fixable except by upgrading your hardware to a newer revision, or not allowing untrusted 64bit guestsystems.

The patch changes the behaviour of the host system booting, which makes it unable to create guest machines until a specific boot option is set.

There is a new XEN boot option 'allow_unsafe' for GRUB which allows the host to start guests again.

This is added to /boot/grub/menu.lst in the line looking like this :

kernel /boot/xen.gz .... allow_unsafe

Note: .... in this example represents the existing boot options for the host.

Solution

Apply SAT patch number 6399.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, Immunity Canvas, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the SuSE 11.1 Security Update : Xen (SAT Patch Number 6399) vulnerability:

Metasploit: exploit/freebsd/local/intel_sysret_priv_esc
[FreeBSD Intel SYSRET Privilege Escalation]
Exploit-DB: exploits/freebsd_x86-64/local/46508.rb
[EDB-46508: FreeBSD - Intel SYSRET Privilege Escalation (Metasploit)]
GitHub: https://github.com/Apri1y/Red-Team-links
[CVE-2012-0217]
GitHub: https://github.com/Ascotbe/Kernelhub
[CVE-2012-0217]
GitHub: https://github.com/Echocipher/Resource-list
[CVE-2012-0217]
GitHub: https://github.com/Flerov/WindowsExploitDev
[CVE-2012-0217]
GitHub: https://github.com/Snoopy-Sec/Localroot-ALL-CVE
[CVE-2012-0217]
GitHub: https://github.com/anoaghost/Localroot_Compile
[CVE-2012-0217]
GitHub: https://github.com/cranelab/exploit-development
[CVE-2012-0217]
GitHub: https://github.com/felixlinker/ifc-rv-thesis
[CVE-2012-0217]
GitHub: https://github.com/hudunkey/Red-Team-links
[CVE-2012-0217]
GitHub: https://github.com/john-80/-007
[CVE-2012-0217]
GitHub: https://github.com/lp008/Hack-readme
[CVE-2012-0217]
GitHub: https://github.com/slimdaddy/RedTeam
[CVE-2012-0217]
GitHub: https://github.com/xiaoZ-hc/redtool
[CVE-2012-0217]
GitHub: https://github.com/ycdxsb/WindowsPrivilegeEscalation
[CVE-2012-0217]
Immunity Canvas: CANVAS

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.2 (High)

Go back to menu.

Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from SuSE 11 update information. The text itself is
# copyright (C) Novell, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

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

if (description)
{
  script_id(64233);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2012-0217", "CVE-2012-0218", "CVE-2012-2934");

  script_name(english:"SuSE 11.1 Security Update : Xen (SAT Patch Number 6399)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 11 host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Three security issues were found in XEN.

Two security issues are fixed by this update :

  - Due to incorrect fault handling in the XEN hypervisor it
    was possible for a XEN guest domain administrator to
    execute code in the XEN host environment.
    (CVE-2012-0217)

  - Also a guest user could crash the guest XEN kernel due
    to a protection fault bounce. The third fix is changing
    the Xen behaviour on certain hardware:. (CVE-2012-0218)

  - The issue is a denial of service issue on older pre-SVM
    AMD CPUs (AMD Erratum 121). AMD Erratum #121 is
    described in 'Revision Guide for AMD Athlon 64 and AMD
    Opteron Processors':
    http://support.amd.com/us/Processor_TechDocs/25759.pdf.
    (CVE-2012-2934)

    The following 130nm and 90nm (DDR1-only) AMD processors
    are subject to this erratum :

  - First-generation AMD-Opteron(tm) single and dual core
    processors in either 939 or 940 packages :

  - AMD Opteron(tm) 100-Series Processors

  - AMD Opteron(tm) 200-Series Processors

  - AMD Opteron(tm) 800-Series Processors

  - AMD Athlon(tm) processors in either 754, 939 or 940
    packages

  - AMD Sempron(tm) processor in either 754 or 939 packages

  - AMD Turion(tm) Mobile Technology in 754 package This
    issue does not effect Intel processors.

    The impact of this flaw is that a malicious PV guest
    user can halt the host system.

    As this is a hardware flaw, it is not fixable except by
    upgrading your hardware to a newer revision, or not
    allowing untrusted 64bit guestsystems.

    The patch changes the behaviour of the host system
    booting, which makes it unable to create guest machines
    until a specific boot option is set.

    There is a new XEN boot option 'allow_unsafe' for GRUB
    which allows the host to start guests again.

    This is added to /boot/grub/menu.lst in the line looking
    like this :

    kernel /boot/xen.gz .... allow_unsafe

    Note: .... in this example represents the existing boot
    options for the host."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=757537"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=757970"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=764077"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-0217.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-0218.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-2934.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply SAT patch number 6399.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'FreeBSD Intel SYSRET Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-doc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-doc-pdf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-kmp-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-kmp-trace");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-tools-domU");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)11") audit(AUDIT_OS_NOT, "SuSE 11");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SuSE 11", cpu);

pl = get_kb_item("Host/SuSE/patchlevel");
if (isnull(pl) || int(pl) != 1) audit(AUDIT_OS_NOT, "SuSE 11.1");


flag = 0;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"xen-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"xen-kmp-default-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"xen-kmp-pae-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"xen-libs-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"xen-tools-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"xen-tools-domU-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"xen-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"xen-kmp-default-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"xen-libs-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"xen-tools-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"xen-tools-domU-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-doc-html-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-doc-pdf-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-kmp-default-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-kmp-pae-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-kmp-trace-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-libs-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-tools-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"i586", reference:"xen-tools-domU-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-doc-html-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-doc-pdf-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-kmp-default-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-kmp-trace-4.0.3_21548_04_2.6.32.59_0.5-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-libs-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-tools-4.0.3_21548_04-0.9.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"xen-tools-domU-4.0.3_21548_04-0.9.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/suse_11_xen-201206-120606.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\suse_11_xen-201206-120606.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/suse_11_xen-201206-120606.nasl

Go back to menu.

How to Run

Here is how to run the SuSE 11.1 Security Update : Xen (SAT Patch Number 6399) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select SuSE Local Security Checks plugin family.
On the right side table select SuSE 11.1 Security Update : Xen (SAT Patch Number 6399) plugin ID 64233.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl suse_11_xen-201206-120606.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a suse_11_xen-201206-120606.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - suse_11_xen-201206-120606.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state suse_11_xen-201206-120606.nasl -t <IP/HOST>

Go back to menu.

References

See also:

Similar and related Nessus plugins:

59479 - CentOS 5 : kernel (CESA-2012:0721)
59779 - Debian DSA-2501-1 : xen - several vulnerabilities
60088 - Debian DSA-2508-1 : kfreebsd-8 - privilege escalation
59748 - FreeBSD : FreeBSD -- Privilege escalation when returning from kernel (aed44c4e-c067-11e1-b5e0-000c299b62e1)
70184 - GLSA-201309-24 : Xen: Multiple vulnerabilities
74682 - openSUSE Security Update : xen (openSUSE-SU-2012:0886-1)
74683 - openSUSE Security Update : xen (openSUSE-2012-404)
68539 - Oracle Linux 5 : kernel (ELSA-2012-0721-1)
68540 - Oracle Linux 5 : kernel (ELSA-2012-0721)
79476 - OracleVM 3.0 : xen (OVMSA-2012-0020)
79477 - OracleVM 3.1 : xen (OVMSA-2012-0021)
79478 - OracleVM 2.2 : xen (OVMSA-2012-0022)
84140 - OracleVM 3.2 : xen (OVMSA-2015-0068) (POODLE) (Venom)
64039 - RHEL 5 : kernel (RHSA-2012:0720)
59467 - RHEL 5 : kernel (RHSA-2012:0721)
61326 - Scientific Linux Security Update : kernel on SL5.x i386/x86_64 (20120612)
59460 - MS12-042: Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (2711167)
76829 - Oracle Solaris Critical Patch Update : oct2012_SRU10_5
59469 - SuSE 10 Security Update : Xen (ZYPP Patch Number 8180)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file suse_11_xen-201206-120606.nasl version 1.6. For more plugins, visit the Nessus Plugin Library.

Go back to menu.

SuSE 11.1 Security Update : Xen (SAT Patch Number 6399) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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