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nessusThis script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.EULEROS_SA-2020-2401.NASL
HistoryNov 03, 2020 - 12:00 a.m.

EulerOS 2.0 SP2 : tomcat (EulerOS-SA-2020-2401)

2020-11-0300:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
16

7.8 High

AI Score

Confidence

High

According to the version of the tomcat packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  • 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(142299);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/12");

  script_cve_id("CVE-2020-13935");
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");

  script_name(english:"EulerOS 2.0 SP2 : tomcat (EulerOS-SA-2020-2401)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the tomcat packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerability :

  - 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)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-2401
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f2e84070");
  script_set_attribute(attribute:"solution", value:
"Update the affected tomcat package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-13935");

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

  script_set_attribute(attribute:"patch_publication_date", value:"2020/11/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-admin-webapps");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-el-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-jsp-2.2-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-lib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-servlet-3.0-api");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:tomcat-webapps");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["tomcat-7.0.76-8.h9",
        "tomcat-admin-webapps-7.0.76-8.h9",
        "tomcat-el-2.2-api-7.0.76-8.h9",
        "tomcat-jsp-2.2-api-7.0.76-8.h9",
        "tomcat-lib-7.0.76-8.h9",
        "tomcat-servlet-3.0-api-7.0.76-8.h9",
        "tomcat-webapps-7.0.76-8.h9"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"2", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "tomcat");
}
VendorProductVersionCPE
huaweieulerostomcatp-cpe:/a:huawei:euleros:tomcat
huaweieulerostomcat-admin-webappsp-cpe:/a:huawei:euleros:tomcat-admin-webapps
huaweieulerostomcat-el-2.2-apip-cpe:/a:huawei:euleros:tomcat-el-2.2-api
huaweieulerostomcat-jsp-2.2-apip-cpe:/a:huawei:euleros:tomcat-jsp-2.2-api
huaweieulerostomcat-libp-cpe:/a:huawei:euleros:tomcat-lib
huaweieulerostomcat-servlet-3.0-apip-cpe:/a:huawei:euleros:tomcat-servlet-3.0-api
huaweieulerostomcat-webappsp-cpe:/a:huawei:euleros:tomcat-webapps
huaweieuleros2.0cpe:/o:huawei:euleros:2.0