Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS : w3m vulnerability (USN-967-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-967-1. 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(48283);
  script_version("1.14");
  script_cvs_date("Date: 2019/09/19 12:54:26");

  script_cve_id("CVE-2010-2074");
  script_bugtraq_id(40837);
  script_xref(name:"USN", value:"967-1");

  script_name(english:"Ubuntu 6.06 LTS / 8.04 LTS / 9.04 / 9.10 / 10.04 LTS : w3m vulnerability (USN-967-1)");
  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:
"Ludwig Nussel discovered w3m does not properly handle SSL/TLS
certificates with NULL characters in the certificate name. An attacker
could exploit this to perform a man in the middle attack to view
sensitive information or alter encrypted communications.
(CVE-2010-2074).

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/967-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected w3m and / or w3m-img packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/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_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:w3m");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:w3m-img");
  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: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:9.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/06/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/08/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/08/10");
  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|9\.04|9\.10|10\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 8.04 / 9.04 / 9.10 / 10.04", "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:"w3m", pkgver:"0.5.1-4ubuntu2.6.06.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"w3m-img", pkgver:"0.5.1-4ubuntu2.6.06.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"w3m", pkgver:"0.5.1-5.1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"w3m-img", pkgver:"0.5.1-5.1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"w3m", pkgver:"0.5.2-2ubuntu0.1")) flag++;
if (ubuntu_check(osver:"9.04", pkgname:"w3m-img", pkgver:"0.5.2-2ubuntu0.1")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"w3m", pkgver:"0.5.2-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"w3m-img", pkgver:"0.5.2-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"w3m", pkgver:"0.5.2-2.1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"w3m-img", pkgver:"0.5.2-2.1ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "w3m / w3m-img");
}