Vulnerabilities > CVE-2014-2338 - Improper Authentication vulnerability in Strongswan

047910
CVSS 6.4 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
NONE
network
low complexity
strongswan
CWE-287
nessus
NVD
Published: 2014-04-16
Updated: 2016-11-28

Summary

IKEv2 in strongSwan 4.0.7 before 5.1.3 allows remote attackers to bypass authentication by rekeying an IKE_SA during (1) initiation or (2) re-authentication, which triggers the IKE_SA state to be set to established.

Vulnerable Configurations

Part Description Count
Application
Strongswan
57

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Authentication Abuse
    An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
  • 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.
  • Utilizing REST's Trust in the System Resource to Register Man in the Middle
    This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
  • Man in the Middle Attack
    This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2014-5238.NASL
    descriptionCVE-2014-2338 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.
    last seen2020-03-17
    modified2014-04-25
    plugin id73700
    published2014-04-25
    reporterThis script is Copyright (C) 2014-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/73700
    titleFedora 19 : strongswan-5.1.3-1.fc19 (2014-5238)
    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 2014-5238.
#

include("compat.inc");

if (description)
{
  script_id(73700);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_xref(name:"FEDORA", value:"2014-5238");

  script_name(english:"Fedora 19 : strongswan-5.1.3-1.fc19 (2014-5238)");
  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:
"CVE-2014-2338

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."
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2014-April/132091.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7cd936d4"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected strongswan package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:strongswan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:19");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 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:"^19([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 19.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:"FC19", reference:"strongswan-5.1.3-1.fc19")) 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, "strongswan");
}
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201412-26.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201412-26 (strongSwan: Multiple Vulnerabilities) A NULL pointer dereference and an error in the IKEv2 implementation have been found in strongSwan. Impact : A remote attacker could create a Denial of Service condition or bypass security restrictions. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id79979
    published2014-12-15
    reporterThis script is Copyright (C) 2014-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/79979
    titleGLSA-201412-26 : strongSwan: Multiple Vulnerabilities
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201412-26.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(79979);
  script_version("1.4");
  script_cvs_date("Date: 2018/12/05 20:31:22");

  script_cve_id("CVE-2014-2338", "CVE-2014-2891");
  script_bugtraq_id(66815, 67212);
  script_xref(name:"GLSA", value:"201412-26");

  script_name(english:"GLSA-201412-26 : strongSwan: Multiple Vulnerabilities");
  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-201412-26
(strongSwan: Multiple Vulnerabilities)

    A NULL pointer dereference and an error in the IKEv2 implementation have
      been found in strongSwan.
  
Impact :

    A remote attacker could create a Denial of Service condition or bypass
      security restrictions.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201412-26"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All strongSwan users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=net-misc/strongswan-5.1.3'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  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_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/12/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/12/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2018 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/strongswan", unaffected:make_list("ge 5.1.3"), vulnerable:make_list("lt 5.1.3"))) 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, "strongSwan");
}
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_6FB521B0D38811E3A790000C2980A9F3.NASL
    descriptionstrongSwan developers report : Remote attackers are able to bypass authentication by rekeying an IKE_SA during (1) initiation or (2) re-authentication, which triggers the IKE_SA state to be set to established. Only installations that actively initiate or re-authenticate IKEv2 IKE_SAs are affected.
    last seen2020-06-01
    modified2020-06-02
    plugin id73857
    published2014-05-05
    reporterThis script is Copyright (C) 2014-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/73857
    titleFreeBSD : strongswan -- Remote Authentication Bypass (6fb521b0-d388-11e3-a790-000c2980a9f3)
    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(73857);
  script_version("1.2");
  script_cvs_date("Date: 2018/11/10 11:49:43");

  script_cve_id("CVE-2014-2338");

  script_name(english:"FreeBSD : strongswan -- Remote Authentication Bypass (6fb521b0-d388-11e3-a790-000c2980a9f3)");
  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:
"strongSwan developers report :

Remote attackers are able to bypass authentication by rekeying an
IKE_SA during (1) initiation or (2) re-authentication, which triggers
the IKE_SA state to be set to established.

Only installations that actively initiate or re-authenticate IKEv2
IKE_SAs are affected."
  );
  # http://www.strongswan.org/blog/2014/04/14/strongswan-authentication-bypass-vulnerability-%28cve-2014-2338%29.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?841e5e2e"
  );
  # https://vuxml.freebsd.org/freebsd/6fb521b0-d388-11e3-a790-000c2980a9f3.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1080946b"
  );
  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:P/A:N");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/03/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/05/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/05/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2018 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:"strongswan<5.1.3")) 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");
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2903.NASL
    descriptionAn authentication bypass vulnerability was found in charon, the daemon handling IKEv2 in strongSwan, an IKE/IPsec suite. The state machine handling the security association (IKE_SA) handled some state transitions incorrectly. An attacker can trigger the vulnerability by rekeying an unestablished IKE_SA during the initiation itself. This will trick the IKE_SA state to
    last seen2020-03-17
    modified2014-04-15
    plugin id73501
    published2014-04-15
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/73501
    titleDebian DSA-2903-1 : strongswan - 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 DSA-2903. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(73501);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2014-2338");
  script_xref(name:"DSA", value:"2903");

  script_name(english:"Debian DSA-2903-1 : strongswan - 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:
"An authentication bypass vulnerability was found in charon, the daemon
handling IKEv2 in strongSwan, an IKE/IPsec suite. The state machine
handling the security association (IKE_SA) handled some state
transitions incorrectly.

An attacker can trigger the vulnerability by rekeying an unestablished
IKE_SA during the initiation itself. This will trick the IKE_SA state
to'established' without the need to provide any valid credential.

Vulnerable setups include those actively initiating IKEv2 IKE_SA (like
'clients' or 'roadwarriors') but also during re-authentication
(which can be initiated by the responder). Installations using IKEv1
(pluto daemon in strongSwan 4 and earlier, and IKEv1 code in charon
5.x) is not affected."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/strongswan"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/strongswan"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2014/dsa-2903"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the strongswan packages.

For the oldstable distribution (squeeze), this problem has been fixed
in version 4.4.1-5.5.

For the stable distribution (wheezy), this problem has been fixed in
version 4.5.2-1.5+deb7u3."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 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:"6.0", prefix:"libstrongswan", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-dbg", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev1", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev2", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-nm", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-starter", reference:"4.4.1-5.5")) flag++;
if (deb_check(release:"7.0", prefix:"libstrongswan", reference:"4.5.2-1.5+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan", reference:"4.5.2-1.5+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-dbg", reference:"4.5.2-1.5+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-ikev1", reference:"4.5.2-1.5+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-ikev2", reference:"4.5.2-1.5+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-nm", reference:"4.5.2-1.5+deb7u3")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-starter", reference:"4.5.2-1.5+deb7u3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_STRONGSWAN-140403.NASL
    descriptionThe following security issue is fixed by this update : - strongswan has been updated to fix an authentication problem where attackers could have bypassed the IKEv2 authentication. (CVE-2014-2338). (bnc#870572)
    last seen2020-06-05
    modified2014-04-16
    plugin id73555
    published2014-04-16
    reporterThis script is Copyright (C) 2014-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/73555
    titleSuSE 11.3 Security Update : strongswan (SAT Patch Number 9089)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from SuSE 11 update information. The text itself is
# copyright (C) Novell, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(73555);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2014-2338");

  script_name(english:"SuSE 11.3 Security Update : strongswan (SAT Patch Number 9089)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 11 host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The following security issue is fixed by this update :

  - strongswan has been updated to fix an authentication
    problem where attackers could have bypassed the IKEv2
    authentication. (CVE-2014-2338). (bnc#870572)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=870572"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2014-2338.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply SAT patch number 9089.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:strongswan-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/16");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)11") audit(AUDIT_OS_NOT, "SuSE 11");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SuSE 11", cpu);

pl = get_kb_item("Host/SuSE/patchlevel");
if (isnull(pl) || int(pl) != 3) audit(AUDIT_OS_NOT, "SuSE 11.3");


flag = 0;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"strongswan-4.4.0-6.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"strongswan-doc-4.4.0-6.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"strongswan-4.4.0-6.23.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"strongswan-doc-4.4.0-6.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, reference:"strongswan-4.4.0-6.23.1")) flag++;
if (rpm_check(release:"SLES11", sp:3, reference:"strongswan-doc-4.4.0-6.23.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2014-384.NASL
    descriptionstrongswan was fixed to correct two issues : - Fix for DoS vulnerability by a NULL pointer dereference (CVE-2014-2891). - Fix for a authentication bypass vulnerability in the IKEv2 code (CVE-2014-2338).
    last seen2020-06-05
    modified2014-06-13
    plugin id75367
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/75367
    titleopenSUSE Security Update : strongswan (openSUSE-SU-2014:0697-1)
    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-2014-384.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(75367);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2014-2338", "CVE-2014-2891");

  script_name(english:"openSUSE Security Update : strongswan (openSUSE-SU-2014:0697-1)");
  script_summary(english:"Check for the openSUSE-2014-384 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"strongswan was fixed to correct two issues :

  - Fix for DoS vulnerability by a NULL pointer dereference
    (CVE-2014-2891).

  - Fix for a authentication bypass vulnerability in the
    IKEv2 code (CVE-2014-2338)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=870572"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=876449"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2014-05/msg00064.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected strongswan packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-ipsec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-ipsec-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-libs0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-libs0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-mysql-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-nm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-nm-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-sqlite-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.1");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/05/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 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 !~ "^(SUSE12\.3|SUSE13\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.3 / 13.1", 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:"SUSE12.3", reference:"strongswan-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-debugsource-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-ipsec-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-ipsec-debuginfo-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-libs0-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-libs0-debuginfo-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-mysql-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-mysql-debuginfo-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-nm-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-nm-debuginfo-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-sqlite-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"strongswan-sqlite-debuginfo-5.0.1-4.16.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-debugsource-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-ipsec-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-ipsec-debuginfo-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-libs0-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-libs0-debuginfo-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-mysql-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-mysql-debuginfo-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-nm-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-nm-debuginfo-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-sqlite-5.1.1-4.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-sqlite-debuginfo-5.1.1-4.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "strongswan");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2014-5231.NASL
    descriptionThis update fixes : - Bug #1081760 - CVE-2014-2338 strongswan: authentication bypass flaw in IKEv2 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.
    last seen2020-03-17
    modified2014-04-25
    plugin id73699
    published2014-04-25
    reporterThis script is Copyright (C) 2014-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/73699
    titleFedora 20 : strongswan-5.1.3-1.fc20 (2014-5231)
    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 2014-5231.
#

include("compat.inc");

if (description)
{
  script_id(73699);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2014-2338");
  script_xref(name:"FEDORA", value:"2014-5231");

  script_name(english:"Fedora 20 : strongswan-5.1.3-1.fc20 (2014-5231)");
  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 fixes :

  - Bug #1081760 - CVE-2014-2338 strongswan: authentication
    bypass flaw in IKEv2

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=1081760"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2014-April/132049.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4ebd5450"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected strongswan package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:strongswan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 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:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.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:"FC20", reference:"strongswan-5.1.3-1.fc20")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "strongswan");
}

Seebug

bulletinFamilyexploit
descriptionCVE ID:CVE-2014-2338 strongSwan是一个完整的2.4和2.6的Linux内核下的IPsec和IKEv1的实现。它也完全支持新的IKEv2协议的Linux2.6内核。 strongSwan处理IKEv2 SA存在安全漏洞，允许远程攻击者利用漏洞绕过验证，进行授权访问。仅安装actively initiate或re-authenticate IKEv2 IKE_SAs的系统受此漏洞影响。 0 strongSwan 4.x strongSwan 5.x strongSwan 5.1.3版本已修复该漏洞，建议用户下载使用： http://strongswan.org
idSSV:62225
last seen2017-11-19
modified2014-04-18
published2014-04-18
reporterRoot
titlestrongSwan IKEv2 SA验证绕过漏洞

References