Amazon Linux Local Check: ALAS-2014-418

2015-09-08T00:00:00
ID OPENVAS:1361412562310120077
Type openvas
Reporter Eero Volotinen
Modified 2018-10-01T00:00:00

Description

Amazon Linux Local Security Checks

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: alas-2014-418.nasl 6735 2017-07-17 09:56:49Z teissa$
#
# Amazon Linux security check
#
# Authors:
# Eero Volotinen <eero.volotinen@iki.fi>
#
# Copyright:
# Copyright (c) 2015 Eero Volotinen, http://ping-viini.org
#
# 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("1.3.6.1.4.1.25623.1.0.120077");
  script_version("$Revision: 11703 $");
  script_tag(name:"creation_date", value:"2015-09-08 13:16:54 +0200 (Tue, 08 Sep 2015)");
  script_tag(name:"last_modification", value:"$Date: 2018-10-01 10:05:31 +0200 (Mon, 01 Oct 2018) $");
  script_name("Amazon Linux Local Check: ALAS-2014-418");
  script_tag(name:"insight", value:"This ALAS is superseded by ALAS-2014-419. A flaw was found in the way Bash evaluated certain specially crafted environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue.We'd like to also give credit to our colleagues at Red Hat for their excellent blog post summarizing this issue. This ALAS is superseded by ALAS-2014-419.");
  script_tag(name:"solution", value:"Run yum update bash to update your system.");
  script_tag(name:"solution_type", value:"VendorFix");
  script_xref(name:"URL", value:"https://alas.aws.amazon.com/ALAS-2014-418.html");
  script_cve_id("CVE-2014-6271");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"qod_type", value:"package");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/amazon_linux", "ssh/login/release");
  script_category(ACT_GATHER_INFO);
  script_tag(name:"summary", value:"Amazon Linux Local Security Checks");
  script_copyright("Eero Volotinen");
  script_family("Amazon Linux Local Security Checks");

  exit(0);
}

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

release = rpm_get_ssh_release();
if(!release) exit(0);

res = "";

if(release == "AMAZON")
{
if ((res = isrpmvuln(pkg:"bash-doc", rpm:"bash-doc~4.1.2~15.19.amzn1", rls:"AMAZON")) != NULL) {
  security_message(data:res);
  exit(0);
}
if ((res = isrpmvuln(pkg:"bash", rpm:"bash~4.1.2~15.19.amzn1", rls:"AMAZON")) != NULL) {
  security_message(data:res);
  exit(0);
}
if ((res = isrpmvuln(pkg:"bash-debuginfo", rpm:"bash-debuginfo~4.1.2~15.19.amzn1", rls:"AMAZON")) != NULL) {
  security_message(data:res);
  exit(0);
}
if (__pkg_match) exit(99);
  exit(0);
}