Vulnerabilities > CVE-2013-6375 - Permissions, Privileges, and Access Controls vulnerability in multiple products

047910
CVSS 7.9 - HIGH
Attack vector
ADJACENT_NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
xen
opensuse
CWE-264
nessus
NVD
Published: 2013-11-23
Updated: 2018-10-30

Summary

Xen 4.2.x and 4.3.x, when using Intel VT-d for PCI passthrough, does not properly flush the TLB after clearing a present translation table entry, which allows local guest administrators to cause a denial of service or gain privileges via unspecified vectors related to an "inverted boolean parameter."

Vulnerable Configurations

Part Description Count
OS
Xen
5
OS
Opensuse
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Nessus

  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2016-0081.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2016-0081 for details.
    last seen2020-06-01
    modified2020-06-02
    plugin id91756
    published2016-06-22
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/91756
    titleOracleVM 3.2 : xen (OVMSA-2016-0081)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from OracleVM
# Security Advisory OVMSA-2016-0081.
#

include("compat.inc");

if (description)
{
  script_id(91756);
  script_version("2.6");
  script_cvs_date("Date: 2019/09/27 13:00:35");

  script_cve_id("CVE-2013-6375", "CVE-2014-3615", "CVE-2015-5307", "CVE-2015-7504", "CVE-2015-7835", "CVE-2015-7969", "CVE-2015-7971", "CVE-2015-8339", "CVE-2015-8340", "CVE-2015-8550", "CVE-2015-8554", "CVE-2015-8555", "CVE-2016-1570", "CVE-2016-1571", "CVE-2016-2270", "CVE-2016-3158", "CVE-2016-3159", "CVE-2016-3710", "CVE-2016-3712", "CVE-2016-3960");
  script_bugtraq_id(63830, 69654);

  script_name(english:"OracleVM 3.2 : xen (OVMSA-2016-0081)");
  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 : please see Oracle VM Security Advisory
OVMSA-2016-0081 for details."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/oraclevm-errata/2016-June/000495.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected xen / xen-devel / xen-tools packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/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:L/AC:L/PR:L/UI:N/S:C/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:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:xen-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.2");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/11/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/22");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 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\.2" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.2", "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:"OVS3.2", reference:"xen-4.1.3-25.el5.223.26")) flag++;
if (rpm_check(release:"OVS3.2", reference:"xen-devel-4.1.3-25.el5.223.26")) flag++;
if (rpm_check(release:"OVS3.2", reference:"xen-tools-4.1.3-25.el5.223.26")) 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, "xen / xen-devel / xen-tools");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_XEN-201311-131127.NASL
    descriptionThe Xen hypervisor and tool-suite have been updated to fix security issues and bugs : - XSA-73: A lock order reversal between page allocation and grant table locks could lead to host crashes or even host code execution. (CVE-2013-4494) - XSA-74: A lock order reversal between page_alloc_lock and mm_rwlock could lead to deadlocks. (CVE-2013-4553) - XSA-76: Hypercalls exposed to privilege rings 1 and 2 of HVM guests which might lead to Hypervisor escalation under specific circumstances. (CVE-2013-4554) - XSA-78: Insufficient TLB flushing in VT-d (iommu) code could lead to access of memory that was revoked. (CVE-2013-6375) - XSA-75: A host crash due to guest VMX instruction execution was fixed. Non-security bugs have also been fixed:. (CVE-2013-4551) - It is possible to start a VM twice on the same node. (bnc#840997) - In HP
    last seen2020-06-05
    modified2013-12-20
    plugin id71562
    published2013-12-20
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/71562
    titleSuSE 11.3 Security Update : Xen (SAT Patch Number 8588)
    code
    #%NASL_MIN_LEVEL 80502
#
# (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("compat.inc");

if (description)
{
  script_id(71562);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2013-1922", "CVE-2013-2007", "CVE-2013-4375", "CVE-2013-4416", "CVE-2013-4494", "CVE-2013-4551", "CVE-2013-4553", "CVE-2013-4554", "CVE-2013-6375");

  script_name(english:"SuSE 11.3 Security Update : Xen (SAT Patch Number 8588)");
  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:
"The Xen hypervisor and tool-suite have been updated to fix security
issues and bugs :

  - XSA-73: A lock order reversal between page allocation
    and grant table locks could lead to host crashes or even
    host code execution. (CVE-2013-4494)

  - XSA-74: A lock order reversal between page_alloc_lock
    and mm_rwlock could lead to deadlocks. (CVE-2013-4553)

  - XSA-76: Hypercalls exposed to privilege rings 1 and 2 of
    HVM guests which might lead to Hypervisor escalation
    under specific circumstances. (CVE-2013-4554)

  - XSA-78: Insufficient TLB flushing in VT-d (iommu) code
    could lead to access of memory that was revoked.
    (CVE-2013-6375)

  - XSA-75: A host crash due to guest VMX instruction
    execution was fixed. Non-security bugs have also been
    fixed:. (CVE-2013-4551)

  - It is possible to start a VM twice on the same node.
    (bnc#840997)

  - In HP's UEFI x86_64 platform and SLES 11-SP3, dom0 will
    could lock-up on multiple blades nPar. (bnc#842417)

  - Xen Hypervisor panics on 8-blades nPar with 46-bit
    memory addressing. (bnc#848014)

  - Soft lock-up with PCI pass-through and many VCPUs.
    (bnc#846849)

  - Boot Failure with Xen kernel in UEFI mode with error 'No
    memory for trampoline'. (bnc#833483)

  - Increase the maximum supported CPUs in the Hypervisor to
    512."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=833483"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=840997"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=842417"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=846849"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=848014"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=848657"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=849665"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=849667"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=849668"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=851386"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-1922.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-2007.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4375.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4416.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4494.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4551.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4553.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-4554.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2013-6375.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply SAT patch number 8588.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");

  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-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:xen-libs-32bit");
  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:"2013/11/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 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) != 3) audit(AUDIT_OS_NOT, "SuSE 11.3");


flag = 0;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"xen-kmp-default-4.2.3_08_3.0.101_0.8-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"xen-kmp-pae-4.2.3_08_3.0.101_0.8-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"xen-libs-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"xen-tools-domU-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-doc-html-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-doc-pdf-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-kmp-default-4.2.3_08_3.0.101_0.8-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-libs-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-libs-32bit-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-tools-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"xen-tools-domU-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"i586", reference:"xen-kmp-default-4.2.3_08_3.0.101_0.8-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"i586", reference:"xen-kmp-pae-4.2.3_08_3.0.101_0.8-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"i586", reference:"xen-libs-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"i586", reference:"xen-tools-domU-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-doc-html-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-doc-pdf-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-kmp-default-4.2.3_08_3.0.101_0.8-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-libs-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-libs-32bit-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-tools-4.2.3_08-0.7.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, cpu:"x86_64", reference:"xen-tools-domU-4.2.3_08-0.7.1")) 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");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-23251.NASL
    descriptionDisaggregated domain management security status update, IOMMU TLB flushing may be inadvertently suppressed Lock order reversal between page_alloc_lock and mm_rwlock, Hypercalls exposed to privilege rings 1 and 2 of HVM guests Insufficient TLB flushing in VT-d (iommu) code Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-17
    modified2013-12-23
    plugin id71590
    published2013-12-23
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/71590
    titleFedora 20 : xen-4.3.1-6.fc20 (2013-23251)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2013-23251.
#

include("compat.inc");

if (description)
{
  script_id(71590);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2013-4553", "CVE-2013-4554", "CVE-2013-6375", "CVE-2013-6400");
  script_bugtraq_id(63830, 63931, 63933, 64195);
  script_xref(name:"FEDORA", value:"2013-23251");

  script_name(english:"Fedora 20 : xen-4.3.1-6.fc20 (2013-23251)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Disaggregated domain management security status update, IOMMU TLB
flushing may be inadvertently suppressed Lock order reversal between
page_alloc_lock and mm_rwlock, Hypercalls exposed to privilege rings 1
and 2 of HVM guests Insufficient TLB flushing in VT-d (iommu) code

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1029111"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=1029120"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=1033138"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=1035811"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2013-December/124808.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e6e515fc"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen package.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:xen");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/12/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC20", reference:"xen-4.3.1-6.fc20")) 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, "xen");
}
  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2016-0008.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - VT-d: fix TLB flushing in dma_pte_clear_one From: Jan Beulich The TLB flush code was wrong since xen-4.1.3-25.el5.127.20 (commit: vtd-Refactor-iotlb-flush-code.patch), both ovm-3.2.9 and ovm-3.2.10 were affected. The third parameter of __intel_iommu_iotlb_flush is to indicate whether the to be flushed entry was a present one. A few lines before, we bailed if !dma_pte_present(*pte), so there
    last seen2020-06-01
    modified2020-06-02
    plugin id88171
    published2016-01-26
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88171
    titleOracleVM 3.2 : xen (OVMSA-2016-0008)
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201407-03.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201407-03 (Xen: Multiple Vunlerabilities) Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details. Impact : A remote attacker can utilize multiple vectors to execute arbitrary code, cause Denial of Service, or gain access to data on the host. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id76544
    published2014-07-17
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/76544
    titleGLSA-201407-03 : Xen: Multiple Vunlerabilities
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-22325.NASL
    descriptionLock order reversal between page_alloc_lock and mm_rwlock, Hypercalls exposed to privilege rings 1 and 2 of HVM guests, Insufficient TLB flushing in VT-d (iommu) code Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-17
    modified2013-12-08
    plugin id71248
    published2013-12-08
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/71248
    titleFedora 19 : xen-4.2.3-10.fc19 (2013-22325)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2013-22312.NASL
    descriptionLock order reversal between page_alloc_lock and mm_rwlock, Hypercalls exposed to privilege rings 1 and 2 of HVM guests, Insufficient TLB flushing in VT-d (iommu) code Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-03-17
    modified2013-12-08
    plugin id71247
    published2013-12-08
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/71247
    titleFedora 18 : xen-4.2.3-10.fc18 (2013-22312)

References