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nessusThis script is Copyright (C) 2009-2021 and is owned by Tenable, Inc. or an Affiliate thereof.GENTOO_GLSA-200904-05.NASL
HistoryApr 07, 2009 - 12:00 a.m.

GLSA-200904-05 : ntp: Certificate validation error

2009-04-0700:00:00
This script is Copyright (C) 2009-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
16

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:P/A:P

0.007 Low

EPSS

Percentile

81.0%

The remote host is affected by the vulnerability described in GLSA-200904-05 (ntp: Certificate validation error)

It has been reported that ntp incorrectly checks the return value of     the EVP_VerifyFinal(), a vulnerability related to CVE-2008-5077 (GLSA     200902-02).

Impact :

A remote attacker could exploit this vulnerability to spoof arbitrary     names to conduct Man-In-The-Middle attacks and intercept sensitive     information.

Workaround :

There is no known workaround at this time.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200904-05.
#
# The advisory text is Copyright (C) 2001-2018 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

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

if (description)
{
  script_id(36093);
  script_version("1.22");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2008-5077", "CVE-2009-0021");
  script_bugtraq_id(33150);
  script_xref(name:"GLSA", value:"200904-05");

  script_name(english:"GLSA-200904-05 : ntp: Certificate validation error");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200904-05
(ntp: Certificate validation error)

    It has been reported that ntp incorrectly checks the return value of
    the EVP_VerifyFinal(), a vulnerability related to CVE-2008-5077 (GLSA
    200902-02).
  
Impact :

    A remote attacker could exploit this vulnerability to spoof arbitrary
    names to conduct Man-In-The-Middle attacks and intercept sensitive
    information.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200902-02"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200904-05"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All ntp users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=net-misc/ntp-4.2.4_p6'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/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(20, 287);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:ntp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/04/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/04/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"net-misc/ntp", unaffected:make_list("ge 4.2.4_p6"), vulnerable:make_list("lt 4.2.4_p6"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ntp");
}
VendorProductVersionCPE
gentoolinuxcpe:/o:gentoo:linux
gentoolinuxntpp-cpe:/a:gentoo:linux:ntp

5.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:P/A:P

0.007 Low

EPSS

Percentile

81.0%