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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.AL2_ALASTOMCAT9-2023-008.NASL
HistorySep 27, 2023 - 12:00 a.m.

Amazon Linux 2 : tomcat (ALASTOMCAT9-2023-008)

2023-09-2700:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
19
amazon linux 2
tomcat
vulnerabilities
remote host
security advisory
jmx
session fixation
websocket
json
dos
remote proxy
nessus scanner

CVSS2

5.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:H/Au:N/C:P/I:P/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.148

Percentile

95.9%

The version of tomcat installed on the remote host is prior to 9.0.73-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2TOMCAT9-2023-008 advisory.

  • When Apache Tomcat 9.0.0.M1 to 9.0.28, 8.5.0 to 8.5.47, 7.0.0 and 7.0.97 is configured with the JMX Remote Lifecycle Listener, a local attacker without access to the Tomcat process or configuration files is able to manipulate the RMI registry to perform a man-in-the-middle attack to capture user names and passwords used to access the JMX interface. The attacker can then use these credentials to access the JMX interface and gain complete control over the Tomcat instance. (CVE-2019-12418)

  • When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability. (CVE-2019-17563)

  • The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service. (CVE-2020-13935)

  • The JsonErrorReportValve in Apache Tomcat 8.5.83, 9.0.40 to 9.0.68 and 10.1.0-M1 to 10.1.1 did not escape the type, message or description values. In some circumstances these are constructed from user provided data and it was therefore possible for users to supply values that invalidated or manipulated the JSON output. (CVE-2022-45143)

  • Apache Commons FileUpload before 1.5 does not limit the number of request parts to be processed resulting in the possibility of an attacker triggering a DoS with a malicious upload or series of uploads. Note that, like all of the file upload limits, the new configuration option (FileUploadBase#setFileCountMax) is not enabled by default and must be explicitly configured. (CVE-2023-24998)

  • When using the RemoteIpFilter with requests received from a reverse proxy via HTTP that include the X-Forwarded-Proto header set to https, session cookies created by Apache Tomcat 11.0.0-M1 to 11.0.0.-M2, 10.1.0-M1 to 10.1.5, 9.0.0-M1 to 9.0.71 and 8.5.0 to 8.5.85 did not include the secure attribute. This could result in the user agent transmitting the session cookie over an insecure channel. (CVE-2023-28708)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALASTOMCAT9-2023-008.
##

include('compat.inc');

if (description)
{
  script_id(182065);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/28");

  script_cve_id(
    "CVE-2019-12418",
    "CVE-2019-17563",
    "CVE-2020-13935",
    "CVE-2022-45143",
    "CVE-2023-24998",
    "CVE-2023-28708"
  );
  script_xref(name:"IAVA", value:"2020-A-0316-S");
  script_xref(name:"IAVA", value:"2023-A-0014-S");
  script_xref(name:"IAVA", value:"2023-A-0112-S");
  script_xref(name:"IAVA", value:"2023-A-0156-S");
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");

  script_name(english:"Amazon Linux 2 : tomcat (ALASTOMCAT9-2023-008)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of tomcat installed on the remote host is prior to 9.0.73-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2TOMCAT9-2023-008 advisory.

  - When Apache Tomcat 9.0.0.M1 to 9.0.28, 8.5.0 to 8.5.47, 7.0.0 and 7.0.97 is configured with the JMX Remote
    Lifecycle Listener, a local attacker without access to the Tomcat process or configuration files is able
    to manipulate the RMI registry to perform a man-in-the-middle attack to capture user names and passwords
    used to access the JMX interface. The attacker can then use these credentials to access the JMX interface
    and gain complete control over the Tomcat instance. (CVE-2019-12418)

  - When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98
    there was a narrow window where an attacker could perform a session fixation attack. The window was
    considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has
    been treated as a security vulnerability. (CVE-2019-17563)

  - The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to
    10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could
    trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of
    service. (CVE-2020-13935)

  - The JsonErrorReportValve in Apache Tomcat 8.5.83, 9.0.40 to 9.0.68 and 10.1.0-M1 to 10.1.1 did not escape
    the type, message or description values. In some circumstances these are constructed from user provided
    data and it was therefore possible for users to supply values that invalidated or manipulated the JSON
    output. (CVE-2022-45143)

  - Apache Commons FileUpload before 1.5 does not limit the number of request parts to be processed resulting
    in the possibility of an attacker triggering a DoS with a malicious upload or series of uploads. Note
    that, like all of the file upload limits, the new configuration option (FileUploadBase#setFileCountMax) is
    not enabled by default and must be explicitly configured. (CVE-2023-24998)

  - When using the RemoteIpFilter with requests received from a reverse proxy via HTTP that include the
    X-Forwarded-Proto header set to https, session cookies created by Apache Tomcat 11.0.0-M1 to 11.0.0.-M2,
    10.1.0-M1 to 10.1.5, 9.0.0-M1 to 9.0.71 and 8.5.0 to 8.5.85 did not include the secure attribute. This
    could result in the user agent transmitting the session cookie over an insecure channel. (CVE-2023-28708)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALASTOMCAT9-2023-008.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-12418.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2019-17563.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2020-13935.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-45143.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-24998.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-28708.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update tomcat' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  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_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17563");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2022-45143");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-docs-webapp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-el-3.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-jsp-2.3-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-jsvc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-servlet-4.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tomcat-webapps");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 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("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

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

var pkgs = [
    {'reference':'tomcat-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-admin-webapps-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-docs-webapp-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-el-3.0-api-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-jsp-2.3-api-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-jsvc-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-lib-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-servlet-4.0-api-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'},
    {'reference':'tomcat-webapps-9.0.73-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'tomcat9'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "tomcat / tomcat-admin-webapps / tomcat-docs-webapp / etc");
}

CVSS2

5.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:H/Au:N/C:P/I:P/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.148

Percentile

95.9%