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nessusThis script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_11_4_NFS-CLIENT-110701.NASL
HistoryJun 13, 2014 - 12:00 a.m.

openSUSE Security Update : nfs-client (openSUSE-SU-2011:0747-1)

2014-06-1300:00:00
This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
23

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.008

Percentile

81.3%

This update fixes the following security issues :

When using wildcards in /etc/exports an attacker could gain unauthorized access to an nfs exported filesystem by creating a DNS record that resolves to the attacker’s IP as well as to a trusted IP (CVE-2011-2500).

mount.nfs could corrupt /etc/mtab (CVE-2011-1749).

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update nfs-client-4831.
#
# The text description of this plugin is (C) SUSE LLC.
#

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

if (description)
{
  script_id(75978);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2011-1749", "CVE-2011-2500");

  script_name(english:"openSUSE Security Update : nfs-client (openSUSE-SU-2011:0747-1)");
  script_summary(english:"Check for the nfs-client-4831 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update fixes the following security issues :

When using wildcards in /etc/exports an attacker could gain
unauthorized access to an nfs exported filesystem by creating a DNS
record that resolves to the attacker's IP as well as to a trusted IP
(CVE-2011-2500).

mount.nfs could corrupt /etc/mtab (CVE-2011-1749)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=689799"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=693189"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=701702"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2011-07/msg00006.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2011-07/msg00008.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected nfs-client packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nfs-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nfs-client-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:nfs-kernel-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.4");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/07/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

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

  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)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.4)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.4", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE11.4", reference:"nfs-client-1.2.3-11.16.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"nfs-client-debuginfo-1.2.3-11.16.1") ) flag++;
if ( rpm_check(release:"SUSE11.4", reference:"nfs-kernel-server-1.2.3-11.16.1") ) 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, "nfs-client / nfs-kernel-server / nfs-client-debuginfo");
}

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.008

Percentile

81.3%