Search...

Scientific Linux Security Update : gdm on SL6.x i386/x86_64

2012-08-01T00:00:00
ID SL_20110329_GDM_ON_SL6_X.NASL
Type nessus
Reporter Tenable
Modified 2012-08-01T00:00:00

Description

The GNOME Display Manager (GDM) provides the graphical login screen, shown shortly after boot up, log out, and when user-switching.

A race condition flaw was found in the way GDM handled the cache directories used to store users' dmrc and face icon files. A local attacker could use this flaw to trick GDM into changing the ownership of an arbitrary file via a symbolic link attack, allowing them to escalate their privileges. (CVE-2011-0727)

We would like to thank Sebastian Krahmer of the SuSE Security Team for reporting this issue.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(60998);
  script_version("$Revision: 1.1 $");
  script_cvs_date("$Date: 2012/08/01 14:38:55 $");

  script_cve_id("CVE-2011-0727");

  script_name(english:"Scientific Linux Security Update : gdm on SL6.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The GNOME Display Manager (GDM) provides the graphical login screen,
shown shortly after boot up, log out, and when user-switching.

A race condition flaw was found in the way GDM handled the cache
directories used to store users' dmrc and face icon files. A local
attacker could use this flaw to trick GDM into changing the ownership
of an arbitrary file via a symbolic link attack, allowing them to
escalate their privileges. (CVE-2011-0727)

We would like to thank Sebastian Krahmer of the SuSE Security Team for
reporting this issue."
  );
  # http://listserv.fnal.gov/scripts/wa.exe?A2=ind1103&L=scientific-linux-errata&T=0&P=10293
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cfae23c8"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/03/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_end_attributes();

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL6", reference:"gdm-2.30.4-21.el6_0.1")) flag++;
if (rpm_check(release:"SL6", reference:"gdm-libs-2.30.4-21.el6_0.1")) flag++;
if (rpm_check(release:"SL6", reference:"gdm-plugin-fingerprint-2.30.4-21.el6_0.1")) flag++;
if (rpm_check(release:"SL6", reference:"gdm-plugin-smartcard-2.30.4-21.el6_0.1")) flag++;
if (rpm_check(release:"SL6", reference:"gdm-user-switch-applet-2.30.4-21.el6_0.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
JSON Vulners Source
Initial Source


All product names, logos, and brands are property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, logos, and brands does not imply endorsement.If you are an owner of some content and want it to be removed, please mail to content@vulners.com Vulners, 2018
Protected by