Vulnerabilities > CVE-2015-8023 - Improper Input Validation vulnerability in multiple products

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
canonical
strongswan
CWE-20
nessus
NVD
Published: 2015-11-18
Updated: 2023-11-07

Summary

The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.

Vulnerable Configurations

Part Description Count
OS
Canonical
3
Application
Strongswan
41

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 familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_3EB0CCC28C6A11E58519005056AC623E.NASL
    descriptionStrongswan Release Notes reports : Fixed an authentication bypass vulnerability in the eap-mschapv2 plugin that was caused by insufficient verification of the internal state when handling MSCHAPv2 Success messages received by the client. This vulnerability has been registered as CVE-2015-8023.
    last seen2020-06-01
    modified2020-06-02
    plugin id86889
    published2015-11-17
    reporterThis script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86889
    titleFreeBSD : strongswan -- authentication bypass vulnerability in the eap-mschapv2 plugin (3eb0ccc2-8c6a-11e5-8519-005056ac623e)
    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(86889);
  script_version("2.3");
  script_cvs_date("Date: 2018/11/10 11:49:44");

  script_cve_id("CVE-2015-8023");

  script_name(english:"FreeBSD : strongswan -- authentication bypass vulnerability in the eap-mschapv2 plugin (3eb0ccc2-8c6a-11e5-8519-005056ac623e)");
  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 Release Notes reports :

Fixed an authentication bypass vulnerability in the eap-mschapv2
plugin that was caused by insufficient verification of the internal
state when handling MSCHAPv2 Success messages received by the client.
This vulnerability has been registered as CVE-2015-8023."
  );
  # https://github.com/strongswan/strongswan/commit/453e204ac40dfff2e0978e8f84a5f8ff0cbc45e2
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?43e9da13"
  );
  # https://vuxml.freebsd.org/freebsd/3eb0ccc2-8c6a-11e5-8519-005056ac623e.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d111ce17"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:"2015/11/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 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<5.3.4")) 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-3398.NASL
    descriptionTobias Brunner found an authentication bypass vulnerability in strongSwan, an IKE/IPsec suite. Due to insufficient validation of its local state the server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin can be tricked into successfully concluding the authentication without providing valid credentials. It
    last seen2020-06-01
    modified2020-06-02
    plugin id86888
    published2015-11-17
    reporterThis script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86888
    titleDebian DSA-3398-1 : strongswan - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3398. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(86888);
  script_version("2.5");
  script_cvs_date("Date: 2018/11/10 11:49:37");

  script_cve_id("CVE-2015-8023");
  script_xref(name:"DSA", value:"3398");

  script_name(english:"Debian DSA-3398-1 : 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:
"Tobias Brunner found an authentication bypass vulnerability in
strongSwan, an IKE/IPsec suite.

Due to insufficient validation of its local state the server
implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin
can be tricked into successfully concluding the authentication without
providing valid credentials.

It's possible to recognize such attacks by looking at the server logs.
The following log message would be seen during the client
authentication :

EAP method EAP_MSCHAPV2 succeeded, no MSK established"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/strongswan"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/strongswan"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2015/dsa-3398"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the strongswan packages.

For the oldstable distribution (wheezy), this problem has been fixed
in version 4.5.2-1.5+deb7u8.

For the stable distribution (jessie), this problem has been fixed in
version 5.2.1-6+deb8u2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:debian:debian_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 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:"7.0", prefix:"libstrongswan", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-dbg", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-ikev1", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-ikev2", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-nm", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"7.0", prefix:"strongswan-starter", reference:"4.5.2-1.5+deb7u8")) flag++;
if (deb_check(release:"8.0", prefix:"charon-cmd", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libcharon-extra-plugins", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libstrongswan", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libstrongswan-extra-plugins", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"libstrongswan-standard-plugins", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-charon", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-dbg", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-ike", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-ikev1", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-ikev2", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-libcharon", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-nm", reference:"5.2.1-6+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"strongswan-starter", reference:"5.2.1-6+deb8u2")) 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_SU-2015-2183-1.NASL
    descriptionThe strongswan package was updated to fix the following security issue : - CVE-2015-8023: Fixed an authentication bypass vulnerability in the eap-mschapv2 plugin (bsc#953817). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id87201
    published2015-12-04
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87201
    titleSUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2015:2183-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:2183-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(87201);
  script_version("2.8");
  script_cvs_date("Date: 2019/09/11 11:22:12");

  script_cve_id("CVE-2015-8023");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2015:2183-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The strongswan package was updated to fix the following security 
issue :

  - CVE-2015-8023: Fixed an authentication bypass
    vulnerability in the eap-mschapv2 plugin (bsc#953817).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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.suse.com/show_bug.cgi?id=953817"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8023/"
  );
  # https://www.suse.com/support/update/announcement/2015/suse-su-20152183-1.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?bd438ab1"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-934=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-934=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:novell:suse_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-hmac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-ipsec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-ipsec-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-libs0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-libs0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2019 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/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)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

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 " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-debugsource-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-hmac-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-ipsec-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-ipsec-debuginfo-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-libs0-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"strongswan-libs0-debuginfo-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"strongswan-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"strongswan-debugsource-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"strongswan-ipsec-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"strongswan-ipsec-debuginfo-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"strongswan-libs0-5.1.3-21.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"strongswan-libs0-debuginfo-5.1.3-21.1")) 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 familySuSE Local Security Checks
    NASL idSUSE_SU-2015-2183-2.NASL
    descriptionThe strongswan package was updated to fix the following security issue : - CVE-2015-8023: Fixed an authentication bypass vulnerability in the eap-mschapv2 plugin (bsc#953817). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id87645
    published2015-12-29
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87645
    titleSUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2015:2183-2)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:2183-2.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(87645);
  script_version("2.6");
  script_cvs_date("Date: 2019/09/11 11:22:12");

  script_cve_id("CVE-2015-8023");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2015:2183-2)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The strongswan package was updated to fix the following security 
issue :

  - CVE-2015-8023: Fixed an authentication bypass
    vulnerability in the eap-mschapv2 plugin (bsc#953817).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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.suse.com/show_bug.cgi?id=953817"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8023/"
  );
  # https://www.suse.com/support/update/announcement/2015/suse-su-20152183-2.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?46602ced"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP1 :

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2015-934=1

SUSE Linux Enterprise Desktop 12-SP1 :

zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2015-934=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:novell:suse_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-hmac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-ipsec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-ipsec-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-libs0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-libs0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/29");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2019 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/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)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

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 " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-debugsource-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-hmac-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-ipsec-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-ipsec-debuginfo-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-libs0-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-libs0-debuginfo-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"strongswan-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"strongswan-debugsource-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"strongswan-ipsec-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"strongswan-ipsec-debuginfo-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"strongswan-libs0-5.1.3-22.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"strongswan-libs0-debuginfo-5.1.3-22.1")) 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 familySuSE Local Security Checks
    NASL idSUSE_SU-2015-2186-1.NASL
    descriptionThe strongswan package was updated to fix the following security issue : - CVE-2015-8023: Fixed an authentication bypass vulnerability in the eap-mschapv2 plugin (bsc#953817). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id87202
    published2015-12-04
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/87202
    titleSUSE SLED11 / SLES11 Security Update : strongswan (SUSE-SU-2015:2186-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:2186-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(87202);
  script_version("2.6");
  script_cvs_date("Date: 2019/09/11 11:22:12");

  script_cve_id("CVE-2015-8023");

  script_name(english:"SUSE SLED11 / SLES11 Security Update : strongswan (SUSE-SU-2015:2186-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The strongswan package was updated to fix the following security 
issue :

  - CVE-2015-8023: Fixed an authentication bypass
    vulnerability in the eap-mschapv2 plugin (bsc#953817).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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.suse.com/show_bug.cgi?id=953817"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-8023/"
  );
  # https://www.suse.com/support/update/announcement/2015/suse-su-20152186-1.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e6a85868"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server for VMWare 11-SP3 :

zypper in -t patch slessp3-strongswan-12246=1

SUSE Linux Enterprise Server 11-SP4 :

zypper in -t patch slessp4-strongswan-12246=1

SUSE Linux Enterprise Server 11-SP3 :

zypper in -t patch slessp3-strongswan-12246=1

SUSE Linux Enterprise Desktop 11-SP4 :

zypper in -t patch sledsp4-strongswan-12246=1

SUSE Linux Enterprise Desktop 11-SP3 :

zypper in -t patch sledsp3-strongswan-12246=1

SUSE Linux Enterprise Debuginfo 11-SP4 :

zypper in -t patch dbgsp4-strongswan-12246=1

SUSE Linux Enterprise Debuginfo 11-SP3 :

zypper in -t patch dbgsp3-strongswan-12246=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:novell:suse_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2019 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/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)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED11|SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED11 / SLES11", "SUSE " + os_ver);

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 " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES11" && (! preg(pattern:"^(3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP3/4", os_ver + " SP" + sp);
if (os_ver == "SLED11" && (! preg(pattern:"^(3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED11 SP3/4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", reference:"strongswan-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"strongswan-doc-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"strongswan-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"strongswan-doc-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"strongswan-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"strongswan-doc-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"i586", reference:"strongswan-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"i586", reference:"strongswan-doc-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"x86_64", reference:"strongswan-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"x86_64", reference:"strongswan-doc-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"i586", reference:"strongswan-4.4.0-6.32.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"i586", reference:"strongswan-doc-4.4.0-6.32.1")) 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 familyFirewalls
    NASL idPFSENSE_SA-15_11.NASL
    descriptionAccording to its self-reported version number, the remote pfSense install is prior to 2.2.6. It is, therefore, affected by multiple vulnerabilities.
    last seen2020-06-01
    modified2020-06-02
    plugin id106498
    published2018-01-31
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106498
    titlepfSense < 2.2.6 Multiple Vulnerabilities (SA-15_09 / SA-15_10 / SA-15_11)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(106498);
  script_version("1.11");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id(
    "CVE-2015-3194",
    "CVE-2015-3195",
    "CVE-2015-3196",
    "CVE-2015-8023"
  );
  script_bugtraq_id(
    78622,
    78623,
    78626,
    84947
  );
  script_xref(name:"FreeBSD", value:"SA-15:26.openssl");

  script_name(english:"pfSense < 2.2.6 Multiple Vulnerabilities (SA-15_09 / SA-15_10 / SA-15_11)");
  script_summary(english:"Checks the version of pfSense.");

  script_set_attribute(attribute:"synopsis", value:
"The remote firewall host is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the remote pfSense
install is prior to 2.2.6. It is, therefore, affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"see_also", value:"https://doc.pfsense.org/index.php/2.2.6_New_Features_and_Changes");
  # https://www.pfsense.org/security/advisories/pfSense-SA-15_09.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?05b5b916");
  # https://www.pfsense.org/security/advisories/pfSense-SA-15_10.captiveportal.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cecc787a");
  # https://www.pfsense.org/security/advisories/pfSense-SA-15_11.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?354b97b7");
  script_set_attribute(attribute:"solution", value:
"Upgrade to pfSense version 2.2.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-8023");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/31");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:pfsense:pfsense");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:bsdperimeter:pfsense");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Firewalls");

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("pfsense_detect.nbin");
  script_require_keys("Host/pfSense");

  exit(0);
}

include("vcf.inc");
include("vcf_extras.inc");

if (!get_kb_item("Host/pfSense")) audit(AUDIT_HOST_NOT, "pfSense");

app_info = vcf::pfsense::get_app_info();
constraints = [
  { "fixed_version" : "2.2.6" }
];

vcf::pfsense::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING,
  flags:{xss:TRUE, xsrf:TRUE, sqli:TRUE}
);
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2015-810.NASL
    descriptionThe strongswan package was updated to fix the following security issue : - CVE-2015-8023: Fixed an authentication bypass vulnerability in the eap-mschapv2 plugin (bsc#953817).
    last seen2020-06-05
    modified2015-11-30
    plugin id87083
    published2015-11-30
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/87083
    titleopenSUSE Security Update : strongswan (openSUSE-2015-810)
    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-2015-810.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(87083);
  script_version("2.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2015-8023");

  script_name(english:"openSUSE Security Update : strongswan (openSUSE-2015-810)");
  script_summary(english:"Check for the openSUSE-2015-810 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The strongswan package was updated to fix the following security 
issue :

  - CVE-2015-8023: Fixed an authentication bypass
    vulnerability in the eap-mschapv2 plugin (bsc#953817)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=953817"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected strongswan packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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-hmac");
  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:13.1");
  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:"patch_publication_date", value:"2015/11/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/30");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2020 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/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\.1|SUSE13\.2|SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.1 / 13.2 / 42.1", 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:"SUSE13.1", reference:"strongswan-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-debugsource-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-ipsec-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-ipsec-debuginfo-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-libs0-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-libs0-debuginfo-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-mysql-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-mysql-debuginfo-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-nm-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-nm-debuginfo-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-sqlite-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"strongswan-sqlite-debuginfo-5.1.1-14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-debugsource-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-ipsec-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-ipsec-debuginfo-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-libs0-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-libs0-debuginfo-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-mysql-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-mysql-debuginfo-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-nm-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-nm-debuginfo-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-sqlite-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"strongswan-sqlite-debuginfo-5.1.3-4.14.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-debugsource-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-hmac-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-ipsec-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-ipsec-debuginfo-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-libs0-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-libs0-debuginfo-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-mysql-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-mysql-debuginfo-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-nm-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-nm-debuginfo-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-sqlite-5.2.2-7.1") ) flag++;
if ( rpm_check(release:"SUSE42.1", reference:"strongswan-sqlite-debuginfo-5.2.2-7.1") ) 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 / strongswan-debugsource / strongswan-ipsec / etc");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-345.NASL
    descriptionTobias Brunner found an authentication bypass vulnerability in strongSwan, an IKE/IPsec suite. Due to insufficient validation of its local state the server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin can be tricked into successfully concluding the authentication without providing valid credentials. It
    last seen2020-03-17
    modified2015-11-20
    plugin id86953
    published2015-11-20
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/86953
    titleDebian DLA-345-1 : 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 DLA-345-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(86953);
  script_version("2.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2015-8023");

  script_name(english:"Debian DLA-345-1 : strongswan 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:
"Tobias Brunner found an authentication bypass vulnerability in
strongSwan, an IKE/IPsec suite.

Due to insufficient validation of its local state the server
implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin
can be tricked into successfully concluding the authentication without
providing valid credentials.

It's possible to recognize such attacks by looking at the server logs.
The following log message would be seen during the client
authentication :

EAP method EAP_MSCHAPV2 succeeded, no MSK established

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/2015/11/msg00005.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/strongswan"
  );
  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: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:debian:debian_linux:libstrongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan-ikev1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan-ikev2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan-nm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:strongswan-starter");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/11/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.");
  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:"4.4.1-5.8")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan", reference:"4.4.1-5.8")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-dbg", reference:"4.4.1-5.8")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev1", reference:"4.4.1-5.8")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev2", reference:"4.4.1-5.8")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-nm", reference:"4.4.1-5.8")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-starter", reference:"4.4.1-5.8")) 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 familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-2811-1.NASL
    descriptionIt was discovered that the strongSwan eap-mschapv2 plugin incorrectly handled state. A remote attacker could use this issue to bypass authentication. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id86896
    published2015-11-17
    reporterUbuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/86896
    titleUbuntu 14.04 LTS / 15.04 / 15.10 : strongswan vulnerability (USN-2811-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2811-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(86896);
  script_version("2.7");
  script_cvs_date("Date: 2019/09/18 12:31:45");

  script_cve_id("CVE-2015-8023");
  script_xref(name:"USN", value:"2811-1");

  script_name(english:"Ubuntu 14.04 LTS / 15.04 / 15.10 : strongswan vulnerability (USN-2811-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that the strongSwan eap-mschapv2 plugin incorrectly
handled state. A remote attacker could use this issue to bypass
authentication.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/2811-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected strongswan-plugin-eap-mschapv2 package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:canonical:ubuntu_linux:strongswan-plugin-eap-mschapv2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:15.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:15.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2015-2019 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(14\.04|15\.04|15\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04 / 15.04 / 15.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"strongswan-plugin-eap-mschapv2", pkgver:"5.1.2-0ubuntu2.4")) flag++;
if (ubuntu_check(osver:"15.04", pkgname:"strongswan-plugin-eap-mschapv2", pkgver:"5.1.2-0ubuntu5.3")) flag++;
if (ubuntu_check(osver:"15.10", pkgname:"strongswan-plugin-eap-mschapv2", pkgver:"5.1.2-0ubuntu6.2")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "strongswan-plugin-eap-mschapv2");
}

References