Ubuntu 4.10 / 5.04 : vim vulnerability (USN-154-1)

2006-01-15T00:00:00
ID UBUNTU_USN-154-1.NASL
Type nessus
Reporter Tenable
Modified 2016-05-27T00:00:00

Description

Georgi Guninski discovered that it was possible to construct Vim modelines that execute arbitrary shell commands by wrapping them in glob() or expand() function calls. If an attacker tricked an user to open a file with a specially crafted modeline, he could exploit this to execute arbitrary commands with the user's 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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-154-1. 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(20555);
  script_version("$Revision: 1.12 $");
  script_cvs_date("$Date: 2016/05/27 14:21:16 $");

  script_xref(name:"USN", value:"154-1");

  script_name(english:"Ubuntu 4.10 / 5.04 : vim vulnerability (USN-154-1)");
  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:
"Georgi Guninski discovered that it was possible to construct Vim
modelines that execute arbitrary shell commands by wrapping them in
glob() or expand() function calls. If an attacker tricked an user to
open a file with a specially crafted modeline, he could exploit this
to execute arbitrary commands with the user's 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:"solution", value:"Update the affected packages.");
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kvim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kvim-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kvim-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:kvim-tcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gnome");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-lesstif");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:vim-tcl");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/07/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.");
  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:"^(4\.10|5\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10 / 5.04", "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:"4.10", pkgname:"kvim", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-common", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-doc", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-gnome", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-gtk", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-lesstif", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-perl", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-python", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"vim-tcl", pkgver:"6.3-025+1ubuntu2.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"kvim", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"kvim-perl", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"kvim-python", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"kvim-tcl", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-common", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-doc", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-gnome", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-gtk", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-lesstif", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-perl", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-python", pkgver:"6.3-046+1ubuntu7.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"vim-tcl", pkgver:"6.3-046+1ubuntu7.1")) 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, "kvim / kvim-perl / kvim-python / kvim-tcl / vim / vim-common / etc");
}