Vulnerabilities > CVE-2016-4536 - Information Exposure vulnerability in Openafs

047910
CVSS 5.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
LOW
Integrity impact
NONE
Availability impact
NONE
network
low complexity
openafs
CWE-200
nessus
NVD
Published: 2016-05-13
Updated: 2024-11-21

Summary

The client in OpenAFS before 1.6.17 does not properly initialize the (1) AFSStoreStatus, (2) AFSStoreVolumeStatus, (3) VldbListByAttributes, and (4) ListAddrByAttributes structures, which might allow remote attackers to obtain sensitive memory information by leveraging access to RPC call traffic.

Vulnerable Configurations

Part Description Count
Application
Openafs
175

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4067.NASL
    descriptionIt was discovered that malformed jumbogram packets could result in denial of service against OpenAFS, an implementation of the Andrew distributed file system.
    last seen2020-06-01
    modified2020-06-02
    plugin id105331
    published2017-12-18
    reporterThis script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105331
    titleDebian DSA-4067-1 : openafs - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4067. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(105331);
  script_version("3.5");
  script_cvs_date("Date: 2018/11/13 12:30:46");

  script_cve_id("CVE-2017-17432");
  script_xref(name:"DSA", value:"4067");

  script_name(english:"Debian DSA-4067-1 : openafs - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that malformed jumbogram packets could result in
denial of service against OpenAFS, an implementation of the Andrew
distributed file system."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2016-4536"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2016-9772"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/openafs"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/openafs"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/openafs"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-4067"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the openafs packages.

For the oldstable distribution (jessie), this problem has been fixed
in version 1.6.9-2+deb8u6. This update also provides corrections for
CVE-2016-4536 and CVE-2016-9772.

For the stable distribution (stretch), this problem has been fixed in
version 1.6.20-2+deb9u1."
  );
  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:debian:debian_linux:openafs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/12/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/18");
  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:"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:"8.0", prefix:"libafsauthent1", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libafsrpc1", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libkopenafs1", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libopenafs-dev", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libpam-openafs-kaserver", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-client", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-dbg", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-dbserver", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-doc", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-fileserver", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-fuse", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-kpasswd", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-krb5", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-modules-dkms", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"openafs-modules-source", reference:"1.6.9-2+deb8u6")) flag++;
if (deb_check(release:"9.0", prefix:"libafsauthent1", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libafsrpc1", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libkopenafs1", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libopenafs-dev", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libpam-openafs-kaserver", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-client", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-dbserver", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-doc", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-fileserver", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-fuse", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-kpasswd", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-krb5", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-modules-dkms", reference:"1.6.20-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"openafs-modules-source", reference:"1.6.20-2+deb9u1")) 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 familyDebian Local Security Checks
    NASL idDEBIAN_DLA-493.NASL
    description - CVE-2015-8312: Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a denial of service (memory overwrite and system crash) via a pioctl with an input buffer size of 4096 bytes. - CVE-2016-2860: The newEntry function in ptserver/ptprocs.c in OpenAFS before 1.6.17 allows remote authenticated users from foreign Kerberos realms to bypass intended access restrictions and create arbitrary groups as administrators by leveraging mishandling of the creator ID. - CVE-2016-4536: The client in OpenAFS before 1.6.17 does not properly initialize the (1) AFSStoreStatus, (2) AFSStoreVolumeStatus, (3) VldbListByAttributes, and (4) ListAddrByAttributes structures, which might allow remote attackers to obtain sensitive memory information by leveraging access to RPC call traffic. For Debian 7
    last seen2020-03-17
    modified2016-05-31
    plugin id91360
    published2016-05-31
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/91360
    titleDebian DLA-493-1 : openafs 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-493-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(91360);
  script_version("2.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2015-8312", "CVE-2016-2860", "CVE-2016-4536");

  script_name(english:"Debian DLA-493-1 : openafs 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:
"  - CVE-2015-8312: Off-by-one error in afs_pioctl.c in
    OpenAFS before 1.6.16 might allow local users to cause a
    denial of service (memory overwrite and system crash)
    via a pioctl with an input buffer size of 4096 bytes.

  - CVE-2016-2860: The newEntry function in
    ptserver/ptprocs.c in OpenAFS before 1.6.17 allows
    remote authenticated users from foreign Kerberos realms
    to bypass intended access restrictions and create
    arbitrary groups as administrators by leveraging
    mishandling of the creator ID.

  - CVE-2016-4536: The client in OpenAFS before 1.6.17 does
    not properly initialize the (1) AFSStoreStatus, (2)
    AFSStoreVolumeStatus, (3) VldbListByAttributes, and (4)
    ListAddrByAttributes structures, which might allow
    remote attackers to obtain sensitive memory information
    by leveraging access to RPC call traffic.

For Debian 7 'Wheezy', these problems have been fixed in version
1.6.1-3+deb7u6.

We recommend that you upgrade your openafs 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/2016/05/msg00045.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/openafs"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:libafsauthent1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libafsrpc1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libkopenafs1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libopenafs-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpam-openafs-kaserver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-dbserver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-fileserver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-fuse");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-kpasswd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-modules-dkms");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-modules-source");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/05/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/31");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 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:"libafsauthent1", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libafsrpc1", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libkopenafs1", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libopenafs-dev", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"libpam-openafs-kaserver", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-client", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-dbg", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-dbserver", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-doc", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-fileserver", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-fuse", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-kpasswd", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-krb5", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-modules-dkms", reference:"1.6.1-3+deb7u6")) flag++;
if (deb_check(release:"7.0", prefix:"openafs-modules-source", reference:"1.6.1-3+deb7u6")) 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 familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_BCBD3FE02B4611E6AE88002590263BF5.NASL
    descriptionThe OpenAFS development team reports : Foreign users can bypass access controls to create groups as system:administrators, including in the user namespace and the system: namespace. The contents of uninitialized memory are sent on the wire when clients perform certain RPCs. Depending on the RPC, the information leaked may come from kernel memory or userspace.
    last seen2020-06-01
    modified2020-06-02
    plugin id91477
    published2016-06-06
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/91477
    titleFreeBSD : openafs -- multiple vulnerabilities (bcbd3fe0-2b46-11e6-ae88-002590263bf5)
    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(91477);
  script_version("2.3");
  script_cvs_date("Date: 2018/11/10 11:49:45");

  script_cve_id("CVE-2016-2860", "CVE-2016-4536");

  script_name(english:"FreeBSD : openafs -- multiple vulnerabilities (bcbd3fe0-2b46-11e6-ae88-002590263bf5)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The OpenAFS development team reports :

Foreign users can bypass access controls to create groups as
system:administrators, including in the user namespace and the system:
namespace.

The contents of uninitialized memory are sent on the wire when clients
perform certain RPCs. Depending on the RPC, the information leaked may
come from kernel memory or userspace."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209534"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.openafs.org/pages/security/OPENAFS-SA-2016-001.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.openafs.org/pages/security/OPENAFS-SA-2016-002.txt"
  );
  # https://vuxml.freebsd.org/freebsd/bcbd3fe0-2b46-11e6-ae88-002590263bf5.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ee9d73a0"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 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:"openafs<1.6.17")) flag++;

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

References