Amazon Linux AMI : mod24_nss (ALAS-2016-714)

2016-06-16T00:00:00
ID ALA_ALAS-2016-714.NASL
Type nessus
Reporter This script is Copyright (C) 2016-2018 Tenable Network Security, Inc.
Modified 2020-11-02T00:00:00

Description

It was reported that +CIPHER operator in OpenSSL changes the order of a cipher. Instead of returning an error (as NSS does not support cipher ordering), it returned the result of processing up to that point, which could result in requested ciphers not being enabled.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2016-714.
#

include("compat.inc");

if (description)
{
  script_id(91628);
  script_version("2.4");
  script_cvs_date("Date: 2018/04/18 15:09:36");

  script_cve_id("CVE-2016-3099");
  script_xref(name:"ALAS", value:"2016-714");

  script_name(english:"Amazon Linux AMI : mod24_nss (ALAS-2016-714)");
  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:
"It was reported that +CIPHER operator in OpenSSL changes the order of
a cipher. Instead of returning an error (as NSS does not support
cipher ordering), it returned the result of processing up to that
point, which could result in requested ciphers not being enabled."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2016-714.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update mod24_nss' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod24_nss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod24_nss-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/16");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 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:"mod24_nss-1.0.12-4.22.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mod24_nss-debuginfo-1.0.12-4.22.amzn1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mod24_nss / mod24_nss-debuginfo");
}