Oracle Linux 3 : krb5 (ELSA-2009-0410)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2009:0410 and 
# Oracle Linux Security Advisory ELSA-2009-0410 respectively.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(67838);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2009-0844", "CVE-2009-0845", "CVE-2009-0846", "CVE-2009-0847");
  script_xref(name:"RHSA", value:"2009:0410");

  script_name(english:"Oracle Linux 3 : krb5 (ELSA-2009-0410)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2009:0410 :

Updated krb5 packages that fix a security issue are now available for
Red Hat Enterprise Linux 2.1 and 3.

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

Kerberos is a network authentication system which allows clients and
servers to authenticate to each other using symmetric encryption and a
trusted third party, the Key Distribution Center (KDC).

An input validation flaw was found in the ASN.1 (Abstract Syntax
Notation One) decoder used by MIT Kerberos. A remote attacker could
use this flaw to crash a network service using the MIT Kerberos
library, such as kadmind or krb5kdc, by causing it to dereference or
free an uninitialized pointer or, possibly, execute arbitrary code
with the privileges of the user running the service. (CVE-2009-0846)

All krb5 users should upgrade to these updated packages, which contain
a backported patch to correct this issue. All running services using
the MIT Kerberos libraries must be restarted for the update to take
effect."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2009-April/000958.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_cwe_id(20, 119, 189);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/04/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^3([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 3", "Oracle Linux " + 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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL3", cpu:"i386", reference:"krb5-devel-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"krb5-devel-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"i386", reference:"krb5-libs-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"krb5-libs-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"i386", reference:"krb5-server-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"krb5-server-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"i386", reference:"krb5-workstation-1.2.7-70")) flag++;
if (rpm_check(release:"EL3", cpu:"x86_64", reference:"krb5-workstation-1.2.7-70")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-devel / krb5-libs / krb5-server / krb5-workstation");
}