RedHat Update for openssl RHSA-2015:1072-01

2015-06-09T00:00:00
ID OPENVAS:1361412562310871364
Type openvas
Reporter Copyright (C) 2015 Greenbone Networks GmbH
Modified 2017-07-12T00:00:00

Description

Check the version of openssl

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
#
# RedHat Update for openssl RHSA-2015:1072-01
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (C) 2015 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.871364");
  script_version("$Revision: 6689 $");
  script_tag(name:"last_modification", value:"$Date: 2017-07-12 11:50:06 +0200 (Wed, 12 Jul 2017) $");
  script_tag(name:"creation_date", value:"2015-06-09 11:01:02 +0200 (Tue, 09 Jun 2015)");
  script_cve_id("CVE-2015-4000");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_tag(name:"qod_type", value:"package");
  script_name("RedHat Update for openssl RHSA-2015:1072-01");
  script_tag(name: "summary", value: "Check the version of openssl");
  script_tag(name: "vuldetect", value: "Get the installed version with the help of detect NVT and check if the version is vulnerable or not.");
  script_tag(name: "insight", value: "OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)
and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

A flaw was found in the way the TLS protocol composes the Diffie-Hellman
(DH) key exchange. A man-in-the-middle attacker could use this flaw to
force the use of weak 512 bit export-grade keys during the key exchange,
allowing them do decrypt all traffic. (CVE-2015-4000)

Note: This update forces the TLS/SSL client implementation in OpenSSL to
reject DH key sizes below 768 bits, which prevents sessions to be
downgraded to export-grade keys. Future updates may raise this limit to
1024 bits.

All openssl users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to take
effect, all services linked to the OpenSSL library must be restarted, or
the system rebooted.
");
  script_tag(name: "affected", value: "openssl on Red Hat Enterprise Linux Desktop (v. 6),
  Red Hat Enterprise Linux Server (v. 6),
  Red Hat Enterprise Linux Server (v. 7),
  Red Hat Enterprise Linux Workstation (v. 6)");
  script_tag(name: "solution", value: "Please Install the Updated Packages.");
  script_xref(name: "RHSA", value: "2015:1072-01");
  script_xref(name: "URL" , value: "https://www.redhat.com/archives/rhsa-announce/2015-June/msg00008.html");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone Networks GmbH");
  script_family("Red Hat Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/rhel", "ssh/login/rpms");
  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = get_kb_item("ssh/login/release");

res = "";
if(release == NULL){
  exit(0);
}

if(release == "RHENT_7")
{

  if ((res = isrpmvuln(pkg:"openssl", rpm:"openssl~1.0.1e~42.el7_1.6", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-debuginfo", rpm:"openssl-debuginfo~1.0.1e~42.el7_1.6", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-devel", rpm:"openssl-devel~1.0.1e~42.el7_1.6", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-libs", rpm:"openssl-libs~1.0.1e~42.el7_1.6", rls:"RHENT_7")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}


if(release == "RHENT_6")
{

  if ((res = isrpmvuln(pkg:"openssl", rpm:"openssl~1.0.1e~30.el6_6.9", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-debuginfo", rpm:"openssl-debuginfo~1.0.1e~30.el6_6.9", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"openssl-devel", rpm:"openssl-devel~1.0.1e~30.el6_6.9", rls:"RHENT_6")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}