Vulnerabilities > CVE-2012-0946 - Permissions, Privileges, and Access Controls vulnerability in Nvidia Unix Driver

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201206-19.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(59672);
  script_version("1.7");
  script_cvs_date("Date: 2018/07/11 17:09:26");

  script_cve_id("CVE-2012-0946");
  script_bugtraq_id(52982);
  script_xref(name:"GLSA", value:"201206-19");

  script_name(english:"GLSA-201206-19 : NVIDIA Drivers: Privilege escalation");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201206-19
(NVIDIA Drivers: Privilege escalation)

    A vulnerability has been found in the way NVIDIA drivers handle
      read/write access to GPU device nodes, allowing access to arbitrary
      system memory locations.
    NOTE: Exposure to this vulnerability is reduced in Gentoo due to 660
      permissions being used on the GPU device nodes by default.
  
Impact :

    A local attacker could gain escalated privileges.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201206-19"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All NVIDIA driver users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose
      '>=x11-drivers/nvidia-drivers-295.40'"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  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:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:nvidia-drivers");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"x11-drivers/nvidia-drivers", unaffected:make_list("ge 295.40"), vulnerable:make_list("lt 295.40"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "NVIDIA Drivers");
}