Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : fuse vulnerability (USN-892-1)

2010-01-29T00:00:00
ID UBUNTU_USN-892-1.NASL
Type nessus
Reporter Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-08-02T00:00:00

Description

Dan Rosenberg discovered that FUSE did not correctly check mount locations. A local attacker, with access to use FUSE, could unmount arbitrary locations, leading to a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-892-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(44335);
  script_version("1.14");
  script_cvs_date("Date: 2019/09/19 12:54:26");

  script_cve_id("CVE-2010-0789");
  script_xref(name:"USN", value:"892-1");

  script_name(english:"Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : fuse vulnerability (USN-892-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Dan Rosenberg discovered that FUSE did not correctly check mount
locations. A local attacker, with access to use FUSE, could unmount
arbitrary locations, leading to a denial of service.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/892-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:P/A:P");
  script_cwe_id(59);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:fuse-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:fuse-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfuse-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfuse2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/03/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/29");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2010-2019 Canonical, Inc. / NASL script (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(6\.06|8\.04|8\.10|9\.04|9\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 8.04 / 8.10 / 9.04 / 9.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"6.06", pkgname:"fuse-source", pkgver:"2.4.2-0ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"fuse-utils", pkgver:"2.4.2-0ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libfuse-dev", pkgver:"2.4.2-0ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libfuse2", pkgver:"2.4.2-0ubuntu3.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"fuse-source", pkgver:"2.7.2-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"fuse-utils", pkgver:"2.7.2-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libfuse-dev", pkgver:"2.7.2-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libfuse2", pkgver:"2.7.2-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"fuse-source", pkgver:"2.7.3-4ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"fuse-utils", pkgver:"2.7.3-4ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libfuse-dev", pkgver:"2.7.3-4ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libfuse2", pkgver:"2.7.3-4ubuntu2.1")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"fuse-utils", pkgver:"2.7.4-1.1ubuntu4.0.9.04.1")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"libfuse-dev", pkgver:"2.7.4-1.1ubuntu4.0.9.04.1")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"libfuse2", pkgver:"2.7.4-1.1ubuntu4.0.9.04.1")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"fuse-utils", pkgver:"2.7.4-1.1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libfuse-dev", pkgver:"2.7.4-1.1ubuntu4.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libfuse2", pkgver:"2.7.4-1.1ubuntu4.3")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "fuse-source / fuse-utils / libfuse-dev / libfuse2");
}