Amazon Linux AMI : mysql56 (ALAS-2019-1178)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux AMI Security Advisory ALAS-2019-1178.
#

include('compat.inc');

if (description)
{
  script_id(123086);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/12");

  script_cve_id(
    "CVE-2019-2455",
    "CVE-2019-2481",
    "CVE-2019-2482",
    "CVE-2019-2503",
    "CVE-2019-2507",
    "CVE-2019-2529",
    "CVE-2019-2531",
    "CVE-2019-2534",
    "CVE-2019-2537"
  );
  script_xref(name:"ALAS", value:"2019-1178");

  script_name(english:"Amazon Linux AMI : mysql56 (ALAS-2019-1178)");

  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: Parser). Supported versions that are affected
are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2455)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: DDL). Supported versions that are affected are
5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2537)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Optimizer). Supported versions that are
affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2529)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Optimizer). Supported versions that are
affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2481)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Optimizer). Supported versions that are
affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2507)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Replication). Supported versions that are
affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 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
access to critical data or complete access to all MySQL Server
accessible data as well as unauthorized update, insert or delete
access to some of MySQL Server accessible data. CVSS 3.0 Base Score
7.1 (Confidentiality and Integrity impacts). CVSS Vector:
(CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N). (CVE-2019-2534)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Connection Handling). Supported versions that
are affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 and
prior. Difficult to exploit vulnerability allows low privileged
attacker with access to the physical communication segment attached to
the hardware where the MySQL Server executes to compromise MySQL
Server. Successful attacks of this vulnerability can result in
unauthorized access to critical data or complete access to all MySQL
Server accessible data and unauthorized ability to cause a hang or
frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0
Base Score 6.4 (Confidentiality and Availability impacts). CVSS
Vector: (CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H).
(CVE-2019-2503)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: Replication). Supported versions that are
affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2531)

Vulnerability in the MySQL Server component of Oracle MySQL
(subcomponent: Server: PS). Supported versions that are affected are
5.6.42 and prior, 5.7.24 and prior and 8.0.13 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-2019-2482)");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/ALAS-2019-1178.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update mysql56' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-2534");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-bench");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-embedded");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-embedded-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-errmsg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql56-test");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"mysql56-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-bench-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-common-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-debuginfo-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-devel-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-embedded-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-embedded-devel-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-errmsg-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-libs-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-server-5.6.43-1.32.amzn1")) flag++;
if (rpm_check(release:"ALA", reference:"mysql56-test-5.6.43-1.32.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, "mysql56 / mysql56-bench / mysql56-common / mysql56-debuginfo / etc");
}