Vulnerabilities > CVE-2016-7073 - Improper Input Validation vulnerability in multiple products

047910
CVSS 5.9 - MEDIUM
Attack vector
NETWORK
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
HIGH
Availability impact
NONE
network
high complexity
powerdns
debian
CWE-20
nessus
NVD
Published: 2018-09-11
Updated: 2024-11-21

Summary

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.

Vulnerable Configurations

Part Description Count
Application
Powerdns
103
OS
Debian
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2017-CBD5501D31.NASL
    description - Update to 4.0.3 - Security fix for CVE-2016-2120, CVE-2016-7068, CVE-2016-7072, CVE-2016-7073, CVE-2016-7074 Release notes 4.0.2: https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4 02 Release notes 4.0.3: https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4 03 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2017-01-30
    plugin id96849
    published2017-01-30
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96849
    titleFedora 25 : pdns (2017-cbd5501d31)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2017-cbd5501d31.
#

include("compat.inc");

if (description)
{
  script_id(96849);
  script_version("3.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");
  script_xref(name:"FEDORA", value:"2017-cbd5501d31");

  script_name(english:"Fedora 25 : pdns (2017-cbd5501d31)");
  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:
"  - Update to 4.0.3

  - Security fix for CVE-2016-2120, CVE-2016-7068,
    CVE-2016-7072, CVE-2016-7073, CVE-2016-7074

Release notes 4.0.2:
https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4
02 Release notes 4.0.3:
https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4
03

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
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://bodhi.fedoraproject.org/updates/FEDORA-2017-cbd5501d31"
  );
  # https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-403
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0934651b"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected pdns package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:pdns");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:25");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/30");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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 = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^25([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 25", "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:"FC25", reference:"pdns-4.0.3-1.fc25")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "pdns");
}
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2017-112.NASL
    descriptionThis update for pdns fixes the following issues : - CVE-2016-2120: Crafted zone record could have caused a denial of service (bsc#1018329). - CVE-2016-7068: Crafted queries could have caused abnormal CPU usage (bsc#1018326). - CVE-2016-7072: Denial of service via the web server (bsc#1018327). - CVE-2016-7073: Fixed insufficient validation of TSIG signatures (bsc#1018328). - CVE-2016-7074: Fixed insufficient validation of TSIG signatures ((bsc#1018328).
    last seen2020-06-05
    modified2017-01-18
    plugin id96583
    published2017-01-18
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96583
    titleopenSUSE Security Update : pdns (openSUSE-2017-112)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2017-112.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(96583);
  script_version("3.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");

  script_name(english:"openSUSE Security Update : pdns (openSUSE-2017-112)");
  script_summary(english:"Check for the openSUSE-2017-112 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for pdns fixes the following issues :

  - CVE-2016-2120: Crafted zone record could have caused a
    denial of service (bsc#1018329).

  - CVE-2016-7068: Crafted queries could have caused
    abnormal CPU usage (bsc#1018326).

  - CVE-2016-7072: Denial of service via the web server
    (bsc#1018327).

  - CVE-2016-7073: Fixed insufficient validation of TSIG
    signatures (bsc#1018328).

  - CVE-2016-7074: Fixed insufficient validation of TSIG
    signatures ((bsc#1018328)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018326"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018327"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018328"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1018329"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected pdns packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-ldap-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-lua-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mydns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mydns-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-mysql-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-postgresql-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-backend-sqlite3-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:pdns-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/18");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

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

  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/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE13\.2|SUSE42\.1|SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.2 / 42.1 / 42.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE13.2", reference:"pdns-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-ldap-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-ldap-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-lua-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-lua-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mydns-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mydns-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mysql-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-mysql-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-postgresql-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-postgresql-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-sqlite3-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-backend-sqlite3-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-debuginfo-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"pdns-debugsource-3.3.1-2.12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-ldap-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-ldap-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-lua-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-lua-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mydns-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mydns-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mysql-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-mysql-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-postgresql-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-postgresql-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-sqlite3-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-backend-sqlite3-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-debuginfo-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"pdns-debugsource-3.4.6-12.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-ldap-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-ldap-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-lua-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-lua-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mydns-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mydns-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mysql-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-mysql-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-postgresql-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-postgresql-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-sqlite3-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-backend-sqlite3-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-debuginfo-3.4.9-3.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"pdns-debugsource-3.4.9-3.1") ) 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, "pdns / pdns-backend-ldap / pdns-backend-ldap-debuginfo / etc");
}
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_E3200958DD6C11E6AE1B002590263BF5.NASL
    descriptionPowerDNS reports : 2016-02: Crafted queries can cause abnormal CPU usage 2016-03: Denial of service via the web server 2016-04: Insufficient validation of TSIG signatures 2016-05: Crafted zone record can cause a denial of service
    last seen2020-06-01
    modified2020-06-02
    plugin id96620
    published2017-01-19
    reporterThis script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96620
    titleFreeBSD : powerdns -- multiple vulnerabilities (e3200958-dd6c-11e6-ae1b-002590263bf5)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(96620);
  script_version("3.3");
  script_cvs_date("Date: 2018/11/23 12:49:58");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");

  script_name(english:"FreeBSD : powerdns -- multiple vulnerabilities (e3200958-dd6c-11e6-ae1b-002590263bf5)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"PowerDNS reports :

2016-02: Crafted queries can cause abnormal CPU usage

2016-03: Denial of service via the web server

2016-04: Insufficient validation of TSIG signatures

2016-05: Crafted zone record can cause a denial of service"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216135"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216136"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-05/"
  );
  # https://blog.powerdns.com/2017/01/13/powerdns-authoritative-server-4-0-2-released/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?58ab7632"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://blog.powerdns.com/2017/01/13/powerdns-recursor-4-0-4-released/"
  );
  # https://vuxml.freebsd.org/freebsd/e3200958-dd6c-11e6-ae1b-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?2dc5f290"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:powerdns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:powerdns-recursor");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/19");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"powerdns<3.4.11")) flag++;
if (pkg_test(save_report:TRUE, pkg:"powerdns>=4.0.0<4.0.2")) flag++;
if (pkg_test(save_report:TRUE, pkg:"powerdns-recursor<3.7.4")) flag++;
if (pkg_test(save_report:TRUE, pkg:"powerdns-recursor>=4.0.0<4.0.4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-798.NASL
    descriptionMultiple vulnerabilities have been discovered in pdns, an authoritative DNS server. The Common Vulnerabilities and Exposures project identifies the following problems : CVE-2016-2120 Mathieu Lafon discovered that pdns does not properly validate records in zones. An authorized user can take advantage of this flaw to crash server by inserting a specially crafted record in a zone under their control and then sending a DNS query for that record. CVE-2016-7068 Florian Heinz and Martin Kluge reported that pdns parses all records present in a query regardless of whether they are needed or even legitimate, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the pdns server, resulting in a partial denial of service if the system becomes overloaded. CVE-2016-7072 Mongo discovered that the webserver in pdns is susceptible to a denial of service vulnerability. A remote, unauthenticated attacker to cause a denial of service by opening a large number of f TCP connections to the web server. CVE-2016-7073 / CVE-2016-7074 Mongo discovered that pdns does not sufficiently validate TSIG signatures, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR. For Debian 7
    last seen2020-03-17
    modified2017-01-26
    plugin id96779
    published2017-01-26
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96779
    titleDebian DLA-798-1 : pdns security update
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-798-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(96779);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2016-2120", "CVE-2016-7068", "CVE-2016-7072", "CVE-2016-7073", "CVE-2016-7074");

  script_name(english:"Debian DLA-798-1 : pdns security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities have been discovered in pdns, an
authoritative DNS server. The Common Vulnerabilities and Exposures
project identifies the following problems :

CVE-2016-2120

Mathieu Lafon discovered that pdns does not properly validate records
in zones. An authorized user can take advantage of this flaw to crash
server by inserting a specially crafted record in a zone under their
control and then sending a DNS query for that record.

CVE-2016-7068

Florian Heinz and Martin Kluge reported that pdns parses all records
present in a query regardless of whether they are needed or even
legitimate, allowing a remote, unauthenticated attacker to cause an
abnormal CPU usage load on the pdns server, resulting in a partial
denial of service if the system becomes overloaded.

CVE-2016-7072

Mongo discovered that the webserver in pdns is susceptible to a
denial of service vulnerability. A remote, unauthenticated attacker to
cause a denial of service by opening a large number of f TCP
connections to the web server.

CVE-2016-7073 / CVE-2016-7074

Mongo discovered that pdns does not sufficiently validate TSIG
signatures, allowing an attacker in position of man-in-the-middle to
alter the content of an AXFR.

For Debian 7 'Wheezy', these problems have been fixed in version
3.1-4.1+deb7u3.

We recommend that you upgrade your pdns packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2017/01/msg00033.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/pdns"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-geo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-pipe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-server-dbg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"pdns-backend-geo", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-ldap", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-lua", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-mysql", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-pgsql", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-pipe", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-sqlite", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-backend-sqlite3", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-server", reference:"3.1-4.1+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"pdns-server-dbg", reference:"3.1-4.1+deb7u3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2017-8308BC2A6E.NASL
    descriptionSecurity fix for CVE-2016-2120, CVE-2016-7068, CVE-2016-7072, CVE-2016-7073, CVE-2016-7074 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2017-01-25
    plugin id96738
    published2017-01-25
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96738
    titleFedora 24 : pdns-recursor (2017-8308bc2a6e)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2017-BB0B9DDF27.NASL
    description - Update to 4.0.3 - Security fix for CVE-2016-2120, CVE-2016-7068, CVE-2016-7072, CVE-2016-7073, CVE-2016-7074 Release notes 4.0.2: https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4 02 Release notes 4.0.3: https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-4 03 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2017-01-31
    plugin id96897
    published2017-01-31
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96897
    titleFedora 24 : pdns (2017-bb0b9ddf27)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3764.NASL
    descriptionMultiple vulnerabilities have been discovered in pdns, an authoritative DNS server. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2016-2120 Mathieu Lafon discovered that pdns does not properly validate records in zones. An authorized user can take advantage of this flaw to crash server by inserting a specially crafted record in a zone under their control and then sending a DNS query for that record. - CVE-2016-7068 Florian Heinz and Martin Kluge reported that pdns parses all records present in a query regardless of whether they are needed or even legitimate, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the pdns server, resulting in a partial denial of service if the system becomes overloaded. - CVE-2016-7072 Mongo discovered that the webserver in pdns is susceptible to a denial-of-service vulnerability, allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. - CVE-2016-7073 / CVE-2016-7074 Mongo discovered that pdns does not sufficiently validate TSIG signatures, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR.
    last seen2020-06-01
    modified2020-06-02
    plugin id96497
    published2017-01-16
    reporterThis script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96497
    titleDebian DSA-3764-1 : pdns - security update
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2017-C1AE4335E5.NASL
    descriptionSecurity fix for CVE-2016-2120, CVE-2016-7068, CVE-2016-7072, CVE-2016-7073, CVE-2016-7074 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2017-01-25
    plugin id96739
    published2017-01-25
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/96739
    titleFedora 25 : pdns-recursor (2017-c1ae4335e5)

References