Vulnerabilities > CVE-2011-4613 - Permissions, Privileges, and Access Controls vulnerability in multiple products

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2364. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(57504);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-4613");
  script_bugtraq_id(51082);
  script_xref(name:"DSA", value:"2364");

  script_name(english:"Debian DSA-2364-1 : xorg - incorrect permission check");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The Debian X wrapper enforces that the X server can only be started
from a console. 'vladz' discovered that this wrapper could be
bypassed.

The oldstable distribution (lenny) is not affected."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/xorg"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2011/dsa-2364"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the xorg packages.

For the stable distribution (squeeze), this problem has been fixed in
version 7.5+8+squeeze1."
  );
  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:F/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xorg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/12/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"libglu1-xorg", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"libglu1-xorg-dev", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"x11-common", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xbase-clients", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xlibmesa-gl", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xlibmesa-gl-dev", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xlibmesa-glu", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xorg", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xorg-dev", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xserver-xorg", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xserver-xorg-input-all", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xserver-xorg-video-all", reference:"7.5+8+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"xutils", reference:"7.5+8+squeeze1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1349-1. 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(57707);
  script_version("1.9");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2011-4613");
  script_bugtraq_id(51082);
  script_xref(name:"USN", value:"1349-1");

  script_name(english:"Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : xorg vulnerability (USN-1349-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that the X wrapper incorrectly checked certain
console permissions when launched by unprivileged users. An attacker
connected remotely could use this flaw to start X, bypassing the
console permissions check.

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/1349-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected xserver-xorg package."
  );
  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:F/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:xserver-xorg");
  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:10.10");
  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:"vuln_publication_date", value:"2014/02/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/27");
  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:"^(10\.04|10\.10|11\.04|11\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 10.10 / 11.04 / 11.10", "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:"10.04", pkgname:"xserver-xorg", pkgver:"1:7.5+5ubuntu1.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"xserver-xorg", pkgver:"1:7.5+6ubuntu3.1")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"xserver-xorg", pkgver:"1:7.6+4ubuntu3.2")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"xserver-xorg", pkgver:"1:7.6+7ubuntu7.1")) 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, "xserver-xorg");
}