Amazon Linux AMI : mysql55 (ALAS-2018-1028)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2018-1028.
#

include("compat.inc");

if (description)
{
  script_id(110202);
  script_version("1.3");
  script_cvs_date("Date: 2019/07/10 16:04:12");

  script_cve_id("CVE-2018-2755", "CVE-2018-2761", "CVE-2018-2771", "CVE-2018-2773", "CVE-2018-2781", "CVE-2018-2813", "CVE-2018-2817", "CVE-2018-2818", "CVE-2018-2819");
  script_xref(name:"ALAS", value:"2018-1028");

  script_name(english:"Amazon Linux AMI : mysql55 (ALAS-2018-1028)");
  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:
"Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Replication). Supported versions that are
affected are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior.
Difficult to exploit vulnerability allows unauthenticated attacker
with logon to the infrastructure where MySQL Server executes to
compromise MySQL Server. Successful attacks require human interaction
from a person other than the attacker and while the vulnerability is
in MySQL Server, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in takeover of
MySQL Server. CVSS 3.0 Base Score 7.7 (Confidentiality, Integrity and
Availability impacts). CVSS Vector:
(CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).(CVE-2018-2755)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: DDL). Supported versions that are affected are
5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Easily
exploitable vulnerability allows low privileged attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of MySQL
Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2817)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: InnoDB). Supported versions that are affected are
5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Easily
exploitable vulnerability allows low privileged attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of MySQL
Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2819)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Client programs). Supported versions that are affected
are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Difficult
to exploit vulnerability allows unauthenticated attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of MySQL
Server. CVSS 3.0 Base Score 5.9 (Availability impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2761)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Locking). Supported versions that are affected
are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Difficult
to exploit vulnerability allows high privileged attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of MySQL
Server. CVSS 3.0 Base Score 4.4 (Availability impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2771)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server : Security : Privileges). Supported versions
that are affected are 5.5.59 and prior, 5.6.39 and prior and 5.7.21
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability
impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2818)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Client programs). Supported versions that are affected
are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Difficult
to exploit vulnerability allows high privileged attacker with logon to
the infrastructure where MySQL Server executes to compromise MySQL
Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.1 (Availability
impacts). CVSS Vector:
(CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2773)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Optimizer). Supported versions that are
affected are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior.
Easily exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS
Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).(CVE-2018-2781)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: DDL). Supported versions that are affected are
5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Easily
exploitable vulnerability allows low privileged attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized read access
to a subset of MySQL Server accessible data. CVSS 3.0 Base Score 4.3
(Confidentiality impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).(CVE-2018-2813)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/ALAS-2018-1028.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update mysql55' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql-config");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-bench");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-embedded");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-embedded-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql55-test");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/04/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/30");
  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:"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:"mysql-config-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-bench-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-debuginfo-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-devel-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-embedded-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-embedded-devel-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-libs-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-server-5.5.60-1.21.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql55-test-5.5.60-1.21.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, "mysql-config / mysql55 / mysql55-bench / mysql55-debuginfo / etc");
}