CentOS 3 : cyrus-sasl (CESA-2007:0878)

2007-09-05T00:00:00
ID CENTOS_RHSA-2007-0878.NASL
Type nessus
Reporter Tenable
Modified 2015-05-19T00:00:00

Description

Updated cyrus-sasl packages that correct a security issue are now available for Red Hat Enterprise Linux 3.

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

The cyrus-sasl package contains the Cyrus implementation of SASL. SASL is the Simple Authentication and Security Layer, a method for adding authentication support to connection-based protocols.

A bug was found in cyrus-sasl's DIGEST-MD5 authentication mechanism. As part of the DIGEST-MD5 authentication exchange, the client is expected to send a specific set of information to the server. If one of these items (the 'realm') was not sent or was malformed, it was possible for a remote unauthenticated attacker to cause a denial of service (segmentation fault) on the server. (CVE-2006-1721)

Users of cyrus-sasl should upgrade to these updated packages, which contain a backported patch to correct this issue.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2007:0878 and 
# CentOS Errata and Security Advisory 2007:0878 respectively.
#

include("compat.inc");

if (description)
{
  script_id(25973);
  script_version("$Revision: 1.9 $");
  script_cvs_date("$Date: 2015/05/19 23:34:17 $");

  script_cve_id("CVE-2006-1721");
  script_xref(name:"RHSA", value:"2007:0878");

  script_name(english:"CentOS 3 : cyrus-sasl (CESA-2007:0878)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated cyrus-sasl packages that correct a security issue are now
available for Red Hat Enterprise Linux 3.

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

The cyrus-sasl package contains the Cyrus implementation of SASL. SASL
is the Simple Authentication and Security Layer, a method for adding
authentication support to connection-based protocols.

A bug was found in cyrus-sasl's DIGEST-MD5 authentication mechanism.
As part of the DIGEST-MD5 authentication exchange, the client is
expected to send a specific set of information to the server. If one
of these items (the 'realm') was not sent or was malformed, it was
possible for a remote unauthenticated attacker to cause a denial of
service (segmentation fault) on the server. (CVE-2006-1721)

Users of cyrus-sasl should upgrade to these updated packages, which
contain a backported patch to correct this issue."
  );
  # http://lists.centos.org/pipermail/centos-announce/2007-September/014164.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?48c3db5d"
  );
  # http://lists.centos.org/pipermail/centos-announce/2007-September/014165.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?b8932a4c"
  );
  # http://lists.centos.org/pipermail/centos-announce/2007-September/014166.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1b6adaa7"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected cyrus-sasl packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cyrus-sasl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cyrus-sasl-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cyrus-sasl-gssapi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cyrus-sasl-md5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:cyrus-sasl-plain");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:3");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/09/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2015 Tenable Network Security, Inc.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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);
if (!get_kb_item("Host/CentOS/release")) audit(AUDIT_OS_NOT, "CentOS");
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-3", reference:"cyrus-sasl-2.1.15-15")) flag++;
if (rpm_check(release:"CentOS-3", reference:"cyrus-sasl-devel-2.1.15-15")) flag++;
if (rpm_check(release:"CentOS-3", reference:"cyrus-sasl-gssapi-2.1.15-15")) flag++;
if (rpm_check(release:"CentOS-3", reference:"cyrus-sasl-md5-2.1.15-15")) flag++;
if (rpm_check(release:"CentOS-3", reference:"cyrus-sasl-plain-2.1.15-15")) flag++;


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