Ubuntu 4.10 / 5.04 : util-linux vulnerability (USN-184-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-184-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(20595);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2005-2876");
  script_xref(name:"USN", value:"184-1");

  script_name(english:"Ubuntu 4.10 / 5.04 : util-linux vulnerability (USN-184-1)");
  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:
"David Watson discovered that 'umount -r' removed some restrictive
mount options like the 'nosuid' flag. If /etc/fstab contains
user-mountable removable devices which specify the 'nosuid' flag
(which is common practice for such devices), a local attacker could
exploit this to execute arbitrary programs with root privileges by
calling 'umount -r' on a removable device.

This does not affect the default Ubuntu configuration. Since Ubuntu
mounts removable devices automatically, there is normally no need to
configure them manually in /etc/fstab.

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_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:bsdutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mount");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:util-linux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:util-linux-locales");
  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:"2005/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/09/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2019 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:"bsdutils", pkgver:"2.12-7ubuntu6.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"mount", pkgver:"2.12-7ubuntu6.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"util-linux", pkgver:"2.12-7ubuntu6.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"util-linux-locales", pkgver:"2.12-7ubuntu6.1")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"bsdutils", pkgver:"2.12p-2ubuntu2.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"mount", pkgver:"2.12p-2ubuntu2.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"util-linux", pkgver:"2.12p-2ubuntu2.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"util-linux-locales", pkgver:"2.12p-2ubuntu2.2")) 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, "bsdutils / mount / util-linux / util-linux-locales");
}