Search...

Amazon Linux AMI : augeas (ALAS-2013-250)

2013-12-10T00:00:00
ID ALA_ALAS-2013-250.NASL
Type nessus
Reporter Tenable
Modified 2018-04-18T00:00:00

Description

Multiple flaws were found in the way Augeas handled configuration files when updating them. An application using Augeas to update configuration files in a directory that is writable to by a different user (for example, an application running as root that is updating files in a directory owned by a non-root service user) could have been tricked into overwriting arbitrary files or leaking information via a symbolic link or mount point attack. (CVE-2012-0786 , CVE-2012-0787)

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2013-250.
#

include("compat.inc");

if (description)
{
  script_id(71267);
  script_version("1.4");
  script_cvs_date("Date: 2018/04/18 15:09:35");

  script_cve_id("CVE-2012-0786", "CVE-2012-0787");
  script_xref(name:"ALAS", value:"2013-250");
  script_xref(name:"RHSA", value:"2013:1537");

  script_name(english:"Amazon Linux AMI : augeas (ALAS-2013-250)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux AMI host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple flaws were found in the way Augeas handled configuration
files when updating them. An application using Augeas to update
configuration files in a directory that is writable to by a different
user (for example, an application running as root that is updating
files in a directory owned by a non-root service user) could have been
tricked into overwriting arbitrary files or leaking information via a
symbolic link or mount point attack. (CVE-2012-0786 , CVE-2012-0787)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2013-250.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update augeas' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/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:amazon:linux:augeas");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:augeas-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:augeas-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:augeas-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/12/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/10");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");
  script_family(english:"Amazon Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "A")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux AMI", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"ALA", reference:"augeas-1.0.0-5.5.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"augeas-debuginfo-1.0.0-5.5.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"augeas-devel-1.0.0-5.5.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"augeas-libs-1.0.0-5.5.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "augeas / augeas-debuginfo / augeas-devel / augeas-libs");
}
JSON Vulners Source
Initial Source


All product names, logos, and brands are property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, logos, and brands does not imply endorsement.If you are an owner of some content and want it to be removed, please mail to content@vulners.com Vulners, 2018
Protected by