Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : dbus regressions (USN-1576-2)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1576-2. 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(62434);
  script_version("1.8");
  script_cvs_date("Date: 2019/09/19 12:54:28");

  script_cve_id("CVE-2012-3524");
  script_bugtraq_id(55517);
  script_xref(name:"USN", value:"1576-2");

  script_name(english:"Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : dbus regressions (USN-1576-2)");
  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:
"USN-1576-1 fixed vulnerabilities in DBus. The update caused a
regression for certain services launched from the activation helper,
and caused an unclean shutdown on upgrade. This update fixes the
problem.

We apologize for the inconvenience.

Sebastian Krahmer discovered that DBus incorrectly handled environment
variables when running with elevated privileges. A local attacker
could possibly exploit this flaw with a setuid binary and gain root
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/1576-2/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected dbus and / or libdbus-1-3 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dbus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdbus-1-3");
  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:11.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/09/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/10/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/10/05");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 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|10\.04|11\.04|11\.10|12\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 8.04 / 10.04 / 11.04 / 11.10 / 12.04", "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:"8.04", pkgname:"dbus", pkgver:"1.1.20-1ubuntu3.9")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libdbus-1-3", pkgver:"1.1.20-1ubuntu3.9")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"dbus", pkgver:"1.2.16-2ubuntu4.7")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libdbus-1-3", pkgver:"1.2.16-2ubuntu4.7")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"dbus", pkgver:"1.4.6-1ubuntu6.4")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libdbus-1-3", pkgver:"1.4.6-1ubuntu6.4")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"dbus", pkgver:"1.4.14-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libdbus-1-3", pkgver:"1.4.14-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"dbus", pkgver:"1.4.18-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libdbus-1-3", pkgver:"1.4.18-1ubuntu1.3")) 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, "dbus / libdbus-1-3");
}