Vulnerabilities > CVE-2016-4993 - CRLF Injection vulnerability in Redhat products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:1249. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(109390);
  script_version("1.6");
  script_cvs_date("Date: 2019/10/24 15:35:44");

  script_cve_id("CVE-2018-1047", "CVE-2018-1067", "CVE-2018-8088");
  script_xref(name:"RHSA", value:"2018:1249");

  script_name(english:"RHEL 6 / 7 : JBoss EAP (RHSA-2018:1249)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for eap7-jboss-ec2-eap is now available for Red Hat JBoss
Enterprise Application Platform 7.1.2 for Red Hat Enterprise Linux 6
and Red Hat JBoss Enterprise Application Platform 7.1.2 for Red Hat
Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The eap7-jboss-ec2-eap packages provide scripts for Red Hat JBoss
Enterprise Application Platform running on the Amazon Web Services
(AWS) Elastic Compute Cloud (EC2).

With this update, the eap7-jboss-ec2-eap package has been updated to
ensure compatibility with Red Hat JBoss Enterprise Application
Platform 7.1.2.

Refer to the JBoss Enterprise Application Platform 7.1 Release Notes,
linked to in the References section, for information on the most
significant bug fixes and enhancements included in this release.

Security Fix(es) :

* undertow: HTTP header injection using CRLF with UTF-8 Encoding
(incomplete fix of CVE-2016-4993) (CVE-2018-1067)

* wildfly-undertow: undertow: Path traversal in ServletResourceManager
class (CVE-2018-1047)

* slf4j: Deserialisation vulnerability in EventData constructor can
allow for arbitrary code execution (CVE-2018-8088)

Red Hat would like to thank Ammarit Thongthua and Nattakit Intarasorn
(Deloitte Thailand Pentest team) for reporting CVE-2018-1067, and
Chris McCown for reporting CVE-2018-8088.

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/documentation/en-us/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2018:1249"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-1047"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-1067"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-8088"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected eap7-jboss-ec2-eap and / or
eap7-jboss-ec2-eap-samples packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:eap7-jboss-ec2-eap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:eap7-jboss-ec2-eap-samples");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x / 7.x", "Red Hat " + os_ver);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2018:1249";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;

  if (! (rpm_exists(release:"RHEL6", rpm:"eap7-jboss") || rpm_exists(release:"RHEL7", rpm:"eap7-jboss"))) audit(AUDIT_PACKAGE_NOT_INSTALLED, "JBoss EAP");

  if (rpm_check(release:"RHEL6", reference:"eap7-jboss-ec2-eap-7.1.2-1.GA_redhat_1.ep7.el6")) flag++;
  if (rpm_check(release:"RHEL6", reference:"eap7-jboss-ec2-eap-samples-7.1.2-1.GA_redhat_1.ep7.el6")) flag++;

  if (rpm_check(release:"RHEL7", reference:"eap7-jboss-ec2-eap-7.1.2-1.GA_redhat_1.ep7.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"eap7-jboss-ec2-eap-samples-7.1.2-1.GA_redhat_1.ep7.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "eap7-jboss-ec2-eap / eap7-jboss-ec2-eap-samples");
  }
}