Amazon Linux: Security Advisory (ALAS-2014-418)

2015-09-08T00:00:00
ID OPENVAS:1361412562310120077
Type openvas
Reporter Copyright (C) 2015 Eero Volotinen
Modified 2020-03-13T00:00:00

Description

The remote host is missing an update announced via the referenced Security Advisory.

                                        
                                            # Copyright (C) 2015 Eero Volotinen
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) of their respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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("2020-03-13T13:19:50+0000");
  script_tag(name:"creation_date", value:"2015-09-08 13:16:54 +0200 (Tue, 08 Sep 2015)");
  script_tag(name:"last_modification", value:"2020-03-13 13:19:50 +0000 (Fri, 13 Mar 2020)");
  script_name("Amazon Linux: Security Advisory (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  script_tag(name:"insight", value:"This ALAS is superseded by ALAS-2014-419.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 This ALAS is superseded by ALAS-2014-419.");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:"The remote host is missing an update announced via the referenced Security Advisory.");
  script_copyright("Copyright (C) 2015 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 = "";
report = "";

if(release == "AMAZON") {
  if(!isnull(res = isrpmvuln(pkg:"bash-doc", rpm:"bash-doc~4.1.2~15.19.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"bash", rpm:"bash~4.1.2~15.19.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"bash-debuginfo", rpm:"bash-debuginfo~4.1.2~15.19.amzn1", rls:"AMAZON"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);