RHEL 5 : dbus (RHSA-2008:0159)

2008-02-28T00:00:00
ID REDHAT-RHSA-2008-0159.NASL
Type nessus
Reporter This script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-07-02T00:00:00

Description

Updated dbus packages that fix an issue with circumventing the security policy are now available.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility.

Havoc Pennington discovered a flaw in the way the dbus-daemon applies its security policy. A user with the ability to connect to the dbus-daemon may be able to execute certain method calls they should normally not have permission to access. (CVE-2008-0595)

Red Hat does not ship any applications in Red Hat Enterprise Linux 5 that would allow a user to leverage this flaw to elevate their privileges.

This flaw does not affect the version of D-Bus shipped in Red Hat Enterprise Linux 4.

All users are advised to upgrade to these updated dbus packages, which contain a backported patch and are not vulnerable to this issue.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2008:0159. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(31308);
  script_version ("1.23");
  script_cvs_date("Date: 2019/10/25 13:36:13");

  script_cve_id("CVE-2008-0595");
  script_bugtraq_id(28023);
  script_xref(name:"RHSA", value:"2008:0159");

  script_name(english:"RHEL 5 : dbus (RHSA-2008:0159)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated dbus packages that fix an issue with circumventing the
security policy are now available.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

D-Bus is a system for sending messages between applications. It is
used both for the system-wide message bus service, and as a
per-user-login-session messaging facility.

Havoc Pennington discovered a flaw in the way the dbus-daemon applies
its security policy. A user with the ability to connect to the
dbus-daemon may be able to execute certain method calls they should
normally not have permission to access. (CVE-2008-0595)

Red Hat does not ship any applications in Red Hat Enterprise Linux 5
that would allow a user to leverage this flaw to elevate their
privileges.

This flaw does not affect the version of D-Bus shipped in Red Hat
Enterprise Linux 4.

All users are advised to upgrade to these updated dbus packages, which
contain a backported patch and are not vulnerable to this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2008-0595"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2008:0159"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected dbus, dbus-devel and / or dbus-x11 packages."
  );
  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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dbus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dbus-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dbus-x11");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/02/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2008/02/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/02/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x", "Red Hat " + os_ver);

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 ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2008:0159";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL5", reference:"dbus-1.0.0-6.3.el5_1")) flag++;

  if (rpm_check(release:"RHEL5", reference:"dbus-devel-1.0.0-6.3.el5_1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"i386", reference:"dbus-x11-1.0.0-6.3.el5_1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"s390x", reference:"dbus-x11-1.0.0-6.3.el5_1")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"dbus-x11-1.0.0-6.3.el5_1")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dbus / dbus-devel / dbus-x11");
  }
}