Ubuntu 5.10 / 6.06 LTS / 6.10 : w3m vulnerabilities (USN-399-1)

2007-11-10T00:00:00
ID UBUNTU_USN-399-1.NASL
Type nessus
Reporter Ubuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-09-02T00:00:00

Description

A format string vulnerability was discovered in w3m. If a user were tricked into visiting an HTTPS URL protected by a specially crafted SSL certificate, an attacker could execute arbitrary code with user privileges.

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.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-399-1. 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(27987);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:33:01");

  script_cve_id("CVE-2006-6772");
  script_bugtraq_id(21735);
  script_xref(name:"USN", value:"399-1");

  script_name(english:"Ubuntu 5.10 / 6.06 LTS / 6.10 : w3m vulnerabilities (USN-399-1)");
  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:
"A format string vulnerability was discovered in w3m. If a user were
tricked into visiting an HTTPS URL protected by a specially crafted
SSL certificate, an attacker could execute arbitrary code with user
privileges.

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/399-1/"
  );
  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:C/I:C/A:C");
  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(134);

  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:5.10");
  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:6.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/01/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2007-2019 Canonical, Inc. / NASL script (C) 2018 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 (! ereg(pattern:"^(5\.10|6\.06|6\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 5.10 / 6.06 / 6.10", "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:"5.10", pkgname:"w3m", pkgver:"0.5.1-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"w3m-img", pkgver:"0.5.1-3ubuntu1.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"w3m", pkgver:"0.5.1-4ubuntu2.6.06")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"w3m-img", pkgver:"0.5.1-4ubuntu2.6.06")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"w3m", pkgver:"0.5.1-4ubuntu2.6.10")) flag++;
if (ubuntu_check(osver:"6.10", pkgname:"w3m-img", pkgver:"0.5.1-4ubuntu2.6.10")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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");
}