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nessusUbuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-1576-1.NASL
HistorySep 21, 2012 - 12:00 a.m.

Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : dbus vulnerability (USN-1576-1)

2012-09-2100:00:00
Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
16

6.9 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

14.1%

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.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1576-1. 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(62219);
  script_version("1.9");
  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:"1576-1");

  script_name(english:"Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : dbus vulnerability (USN-1576-1)");
  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:
"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/1576-1/"
  );
  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:H/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:"2012/09/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/09/21");
  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:"1.1.20-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libdbus-1-3", pkgver:"1.1.20-1ubuntu3.7")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"dbus", pkgver:"1.2.16-2ubuntu4.5")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libdbus-1-3", pkgver:"1.2.16-2ubuntu4.5")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"dbus", pkgver:"1.4.6-1ubuntu6.2")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libdbus-1-3", pkgver:"1.4.6-1ubuntu6.2")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"dbus", pkgver:"1.4.14-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libdbus-1-3", pkgver:"1.4.14-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"dbus", pkgver:"1.4.18-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libdbus-1-3", pkgver:"1.4.18-1ubuntu1.1")) 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, "dbus / libdbus-1-3");
}
VendorProductVersionCPE
canonicalubuntu_linuxdbusp-cpe:/a:canonical:ubuntu_linux:dbus
canonicalubuntu_linuxlibdbus-1-3p-cpe:/a:canonical:ubuntu_linux:libdbus-1-3
canonicalubuntu_linux10.04cpe:/o:canonical:ubuntu_linux:10.04:-:lts
canonicalubuntu_linux11.04cpe:/o:canonical:ubuntu_linux:11.04
canonicalubuntu_linux11.10cpe:/o:canonical:ubuntu_linux:11.10
canonicalubuntu_linux12.04cpe:/o:canonical:ubuntu_linux:12.04:-:lts
canonicalubuntu_linux8.04cpe:/o:canonical:ubuntu_linux:8.04:-:lts

6.9 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

14.1%