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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.TOMCAT_8_5_88.NASL
HistoryMay 24, 2023 - 12:00 a.m.

Apache Tomcat 8.5.85 < 8.5.88 DoS

2023-05-2400:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
145
tomcat
apache
dos
vulnerability
http connector
security advisory
cve-2023-24998
query strings
nessus scanner

AI Score

7.4

Confidence

High

EPSS

0.026

Percentile

90.5%

The version of Tomcat installed on the remote host is prior to 8.5.88. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_8.5.88_security-8 advisory. The fix for CVE-2023-24998 was incomplete for Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73 and 8.5.85 to 8.5.87. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.

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

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(176290);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/06");

  script_cve_id("CVE-2023-28709");
  script_xref(name:"IAVA", value:"2023-A-0266-S");

  script_name(english:"Apache Tomcat 8.5.85 < 8.5.88 DoS");

  script_set_attribute(attribute:"synopsis", value:
"The remote Apache Tomcat server is affected by a denial of service vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Tomcat installed on the remote host is prior to 8.5.88. It is, therefore, affected by a vulnerability as
referenced in the fixed_in_apache_tomcat_8.5.88_security-8 advisory. The fix for CVE-2023-24998 was incomplete for
Apache Tomcat 11.0.0-M2 to 11.0.0-M4, 10.1.5 to 10.1.7, 9.0.71 to 9.0.73 and 8.5.85 to 8.5.87. If non-default HTTP
connector settings were used such that the maxParameterCount could be reached using query string parameters and a
request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded
request parts could be bypassed with the potential for a denial of service to occur.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/apache/tomcat/commit/5badf94e79e5de206fc0ef3054fd536b1bb787cd
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5d9e0579");
  # https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.88
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4bc12cfd");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 8.5.88 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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-2023-28709");

  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:"2023/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/04/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/05/24");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:tomcat:8");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tomcat_error_version.nasl", "tomcat_win_installed.nbin", "apache_tomcat_nix_installed.nbin");
  script_require_keys("installed_sw/Apache Tomcat");

  exit(0);
}

include('tomcat_version.inc');

tomcat_check_version(fixed: '8.5.88', min:'8.5.85', severity:SECURITY_HOLE, granularity_regex: "^8(\.5)?$");