Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : fuse vulnerabilities (USN-1077-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1077-1. 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(52479);
  script_version("1.11");
  script_cvs_date("Date: 2019/09/19 12:54:26");

  script_cve_id("CVE-2010-0789", "CVE-2011-0541", "CVE-2011-0542", "CVE-2011-0543");
  script_bugtraq_id(37983, 46103);
  script_xref(name:"USN", value:"1077-1");

  script_name(english:"Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : fuse vulnerabilities (USN-1077-1)");
  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:
"It was discovered that FUSE would incorrectly follow symlinks when
checking mountpoints under certain conditions. 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/1077-1/"
  );
  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_set_cvss_temporal_vector("CVSS2#E:U/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_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:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10");
  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:9.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/03/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/02/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/03/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 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:"^(8\.04|9\.10|10\.04|10\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.04 / 9.10 / 10.04 / 10.10", "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:"8.04", pkgname:"fuse-source", pkgver:"2.7.2-1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"fuse-utils", pkgver:"2.7.2-1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libfuse-dev", pkgver:"2.7.2-1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libfuse2", pkgver:"2.7.2-1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"fuse-utils", pkgver:"2.7.4-1.1ubuntu4.5")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libfuse-dev", pkgver:"2.7.4-1.1ubuntu4.5")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libfuse2", pkgver:"2.7.4-1.1ubuntu4.5")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"fuse-utils", pkgver:"2.8.1-1.1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libfuse-dev", pkgver:"2.8.1-1.1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libfuse2", pkgver:"2.8.1-1.1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"fuse-utils", pkgver:"2.8.4-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libfuse-dev", pkgver:"2.8.4-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libfuse2", pkgver:"2.8.4-1ubuntu1.3")) 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");
}