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nessusThis script is Copyright (C) 2011-2021 Tenable Network Security, Inc.FEDORA_2011-16296.NASL
HistoryDec 13, 2011 - 12:00 a.m.

Fedora 16 : krb5-1.9.2-4.fc16 (2011-16296)

2011-12-1300:00:00
This script is Copyright (C) 2011-2021 Tenable Network Security, Inc.
www.tenable.com
12

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

0.013 Low

EPSS

Percentile

86.0%

This update rebases Fedora 15 and 16 from version 1.9.1 to version 1.9.2, incorporating a recent security update, and some of the fixes we were previously backporting, among others. It also incorporates fixes for NULL pointer dereferences which the KDC could make while processing TGS requests (CVE-2011-1530).

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2011-16296.
#

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

if (description)
{
  script_id(57143);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_bugtraq_id(50929);
  script_xref(name:"FEDORA", value:"2011-16296");

  script_name(english:"Fedora 16 : krb5-1.9.2-4.fc16 (2011-16296)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update rebases Fedora 15 and 16 from version 1.9.1 to version
1.9.2, incorporating a recent security update, and some of the fixes
we were previously backporting, among others. It also incorporates
fixes for NULL pointer dereferences which the KDC could make while
processing TGS requests (CVE-2011-1530).

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=754001"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=756139"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2011-December/070925.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?282adc12"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected krb5 package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:fedoraproject:fedora:krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:16");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/11/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/12/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2021 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "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) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^16([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 16.x", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC16", reference:"krb5-1.9.2-4.fc16")) 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");
}
VendorProductVersionCPE
fedoraprojectfedorakrb5p-cpe:/a:fedoraproject:fedora:krb5
fedoraprojectfedora16cpe:/o:fedoraproject:fedora:16

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

0.013 Low

EPSS

Percentile

86.0%