Vulnerabilities > CVE-2012-2388 - Improper Authentication vulnerability in Strongswan

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
strongswan
CWE-287
nessus
NVD
Published: 2012-06-27
Updated: 2017-08-29

Summary

The GMP Plugin in strongSwan 4.2.0 through 4.6.3 allows remote attackers to bypass authentication via a (1) empty or (2) zeroed RSA signature, aka "RSA signature verification vulnerability."

Vulnerable Configurations

Part Description Count
Application
Strongswan
34

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 familySuSE Local Security Checks
    NASL idOPENSUSE-2012-309.NASL
    descriptionStrongswan
    last seen2020-06-05
    modified2014-06-13
    plugin id74642
    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/74642
    titleopenSUSE Security Update : strongswan (openSUSE-SU-2012:0691-1)
    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-2012-309.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(74642);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2012-2388");

  script_name(english:"openSUSE Security Update : strongswan (openSUSE-SU-2012:0691-1)");
  script_summary(english:"Check for the openSUSE-2012-309 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:"Strongswan's gmp plugin could treat empty RSA signature as valid ones"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=761325"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2012-06/msg00000.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:P");

  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-ikev1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-ikev1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-ikev2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:strongswan-ikev2-debuginfo");
  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:12.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/06/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.1", 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:"SUSE12.1", reference:"strongswan-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-debugsource-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-ikev1-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-ikev1-debuginfo-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-ikev2-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-ikev2-debuginfo-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-ipsec-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-ipsec-debuginfo-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-libs0-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-libs0-debuginfo-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-mysql-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-mysql-debuginfo-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-nm-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-nm-debuginfo-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-sqlite-4.5.3-5.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"strongswan-sqlite-debuginfo-4.5.3-5.4.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "strongswan / strongswan-debugsource / strongswan-ikev1 / etc");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2483.NASL
    descriptionAn authentication bypass issue was discovered by the Codenomicon CROSS project in strongSwan, an IPsec-based VPN solution. When using RSA-based setups, a missing check in the gmp plugin could allow an attacker presenting a forged signature to successfully authenticate against a strongSwan responder. The default configuration in Debian does not use the gmp plugin for RSA operations but rather the OpenSSL plugin, so the packages as shipped by Debian are not vulnerable.
    last seen2020-03-17
    modified2012-06-29
    plugin id59761
    published2012-06-29
    reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/59761
    titleDebian DSA-2483-1 : strongswan - authentication bypass
    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-2483. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(59761);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2012-2388");
  script_xref(name:"DSA", value:"2483");

  script_name(english:"Debian DSA-2483-1 : strongswan - authentication bypass");
  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 issue was discovered by the Codenomicon CROSS
project in strongSwan, an IPsec-based VPN solution. When using
RSA-based setups, a missing check in the gmp plugin could allow an
attacker presenting a forged signature to successfully authenticate
against a strongSwan responder.

The default configuration in Debian does not use the gmp plugin for
RSA operations but rather the OpenSSL plugin, so the packages as
shipped by Debian are not vulnerable."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/strongswan"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2012/dsa-2483"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the strongswan packages.

For the stable distribution (squeeze), this problem has been fixed in
version 4.4.1-5.2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  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:"patch_publication_date", value:"2012/05/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 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:"4.4.1-5.2")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan", reference:"4.4.1-5.2")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-dbg", reference:"4.4.1-5.2")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev1", reference:"4.4.1-5.2")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev2", reference:"4.4.1-5.2")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-nm", reference:"4.4.1-5.2")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-starter", reference:"4.4.1-5.2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2012-8821.NASL
    descriptionRSA signature verification vulnerability (CVE-2012-2388) Fix bug 821733 and update to new upstream version 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
    modified2012-06-11
    plugin id59437
    published2012-06-11
    reporterThis script is Copyright (C) 2012-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/59437
    titleFedora 16 : strongswan-4.6.4-1.fc16 (2012-8821)
    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 2012-8821.
#

include("compat.inc");

if (description)
{
  script_id(59437);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_xref(name:"FEDORA", value:"2012-8821");

  script_name(english:"Fedora 16 : strongswan-4.6.4-1.fc16 (2012-8821)");
  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:
"RSA signature verification vulnerability (CVE-2012-2388) Fix bug
821733 and update to new upstream version

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=821733"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2012-June/082094.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c55680dd"
  );
  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:16");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/11");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 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:"^16([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 16.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:"FC16", reference:"strongswan-4.6.4-1.fc16")) 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 familySuSE Local Security Checks
    NASL idSUSE_STRONGSWAN-8138.NASL
    descriptionThis update fixed a security issue in strongswan
    last seen2020-06-05
    modified2012-06-04
    plugin id59355
    published2012-06-04
    reporterThis script is Copyright (C) 2012-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/59355
    titleSuSE 10 Security Update : strongswan (ZYPP Patch Number 8138)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The text description of this plugin is (C) Novell, Inc.
#

include("compat.inc");

if (description)
{
  script_id(59355);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2012-2388");

  script_name(english:"SuSE 10 Security Update : strongswan (ZYPP Patch Number 8138)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 10 host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update fixed a security issue in strongswan's 'gmp' plugin which
could be exploited by attackers to forge RSA signature/certificate to
authenticate as any legitimate user. (CVE-2012-2388)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-2388.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply ZYPP patch number 8138.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:suse:suse_linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/05/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 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("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) exit(0, "Local checks are not enabled.");
if (!get_kb_item("Host/SuSE/release")) exit(0, "The host is not running SuSE.");
if (!get_kb_item("Host/SuSE/rpm-list")) exit(1, "Could not obtain the list of installed packages.");

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) exit(1, "Failed to determine the architecture type.");
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") exit(1, "Local checks for SuSE 10 on the '"+cpu+"' architecture have not been implemented.");


flag = 0;
if (rpm_check(release:"SLES10", sp:4, reference:"strongswan-4.4.0-6.9.1")) flag++;
if (rpm_check(release:"SLES10", sp:4, reference:"strongswan-doc-4.4.0-6.9.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else exit(0, "The host is not affected.");
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_STRONGSWAN-120523.NASL
    descriptionThis update fixed a security issue in strongswan
    last seen2020-06-05
    modified2013-01-25
    plugin id64226
    published2013-01-25
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/64226
    titleSuSE 11.1 Security Update : strongswan (SAT Patch Number 6333)
    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.
#

include("compat.inc");

if (description)
{
  script_id(64226);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2012-2388");

  script_name(english:"SuSE 11.1 Security Update : strongswan (SAT Patch Number 6333)");
  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:
"This update fixed a security issue in strongswan's 'gmp' plugin which
could be exploited by attackers to forge RSA signature/certificate to
authenticate as any legitimate user. (CVE-2012-2388)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=761325"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2012-2388.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply SAT patch number 6333.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  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:"2012/05/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 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) != 1) audit(AUDIT_OS_NOT, "SuSE 11.1");


flag = 0;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"strongswan-4.4.0-6.13.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"strongswan-doc-4.4.0-6.13.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"strongswan-4.4.0-6.13.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"strongswan-doc-4.4.0-6.13.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, reference:"strongswan-4.4.0-6.13.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, reference:"strongswan-doc-4.4.0-6.13.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2012-8815.NASL
    descriptionRSA signature verification vulnerability (CVE-2012-2388) Fix bug 821733 and update to new upstream version 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
    modified2012-06-11
    plugin id59436
    published2012-06-11
    reporterThis script is Copyright (C) 2012-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/59436
    titleFedora 17 : strongswan-4.6.4-1.fc17 (2012-8815)
    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 2012-8815.
#

include("compat.inc");

if (description)
{
  script_id(59436);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_xref(name:"FEDORA", value:"2012-8815");

  script_name(english:"Fedora 17 : strongswan-4.6.4-1.fc17 (2012-8815)");
  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:
"RSA signature verification vulnerability (CVE-2012-2388) Fix bug
821733 and update to new upstream version

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=821733"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2012-June/082097.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?d4c631db"
  );
  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:17");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/11");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 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:"^17([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 17.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:"FC17", reference:"strongswan-4.6.4-1.fc17")) 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 familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2665.NASL
    descriptionKevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec based VPN solution. When using the OpenSSL plugin for ECDSA based authentication, an empty, zeroed or otherwise invalid signature is handled as a legitimate one. An attacker could use a forged signature to authenticate like a legitimate user and gain access to the VPN (and everything protected by this). While the issue looks like CVE-2012-2388 (RSA signature based authentication bypass), it is unrelated.
    last seen2020-03-17
    modified2013-05-01
    plugin id66281
    published2013-05-01
    reporterThis script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/66281
    titleDebian DSA-2665-1 : strongswan - authentication bypass
    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-2665. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(66281);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2013-2944");
  script_bugtraq_id(59580);
  script_xref(name:"DSA", value:"2665");

  script_name(english:"Debian DSA-2665-1 : strongswan - authentication bypass");
  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:
"Kevin Wojtysiak discovered a vulnerability in strongSwan, an IPsec
based VPN solution.

When using the OpenSSL plugin for ECDSA based authentication, an
empty, zeroed or otherwise invalid signature is handled as a
legitimate one. An attacker could use a forged signature to
authenticate like a legitimate user and gain access to the VPN (and
everything protected by this).

While the issue looks like CVE-2012-2388 (RSA signature based
authentication bypass), it is unrelated."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2012-2388"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/strongswan"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2013/dsa-2665"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the strongswan packages.

For the stable distribution (squeeze), this problem has been fixed in
version 4.4.1-5.3."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/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:debian:debian_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/05/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 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:"4.4.1-5.3")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan", reference:"4.4.1-5.3")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-dbg", reference:"4.4.1-5.3")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev1", reference:"4.4.1-5.3")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-ikev2", reference:"4.4.1-5.3")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-nm", reference:"4.4.1-5.3")) flag++;
if (deb_check(release:"6.0", prefix:"strongswan-starter", reference:"4.4.1-5.3")) 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");

References