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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.TOMCAT_9_0_0_M15.NASL
HistoryMay 23, 2024 - 12:00 a.m.

Apache Tomcat 9.0.0.M1 < 9.0.0.M15

2024-05-2300:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
1
apache tomcat
nio http connector
vulnerability

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

6.8 Medium

AI Score

Confidence

Low

0.006 Low

EPSS

Percentile

79.4%

The version of Tomcat installed on the remote host is prior to 9.0.0.M15. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_9.0.0.m15_security-9 advisory.

  • A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to 9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the current Processor object being added to the Processor cache multiple times. This in turn meant that the same Processor could be used for concurrent requests. Sharing a Processor can result in information leakage between requests including, not not limited to, session ID and the response body. The bug was first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring introduced the bug but further investigation has shown that the bug is present in all currently supported Tomcat versions. (CVE-2016-8745)

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(197854);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/23");

  script_cve_id("CVE-2016-8745");

  script_name(english:"Apache Tomcat 9.0.0.M1 < 9.0.0.M15");

  script_set_attribute(attribute:"synopsis", value:
"The remote Apache Tomcat server is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Tomcat installed on the remote host is prior to 9.0.0.M15. It is, therefore, affected by a vulnerability
as referenced in the fixed_in_apache_tomcat_9.0.0.m15_security-9 advisory.

  - A bug in the error handling of the send file code for the NIO HTTP connector in Apache Tomcat 9.0.0.M1 to
    9.0.0.M13, 8.5.0 to 8.5.8, 8.0.0.RC1 to 8.0.39, 7.0.0 to 7.0.73 and 6.0.16 to 6.0.48 resulted in the
    current Processor object being added to the Processor cache multiple times. This in turn meant that the
    same Processor could be used for concurrent requests. Sharing a Processor can result in information
    leakage between requests including, not not limited to, session ID and the response body. The bug was
    first noticed in 8.5.x onwards where it appears the refactoring of the Connector code for 8.5.x onwards
    made it more likely that the bug was observed. Initially it was thought that the 8.5.x refactoring
    introduced the bug but further investigation has shown that the bug is present in all currently supported
    Tomcat versions. (CVE-2016-8745)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://svn.apache.org/viewvc?view=rev&rev=1771853");
  # https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.0.M15
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3a06fd01");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 9.0.0.M15 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/UI:N/S:U/C:H/I:N/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-2016-8745");

  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:"2016/12/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/12/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/23");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:tomcat:9");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

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

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

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

  exit(0);
}

include('vcf_extras.inc');

vcf::tomcat::initialize();
var app_info = vcf::combined_get_app_info(app:'Apache Tomcat');

var constraints = [
  { 'min_version' : '9.0.0.M1', 'max_version' : '9.0.0.M14', 'fixed_version' : '9.0.0.M15' }
];

vcf::check_all_backporting(app_info:app_info);
vcf::check_granularity(app_info:app_info, sig_segments:3);
vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);
VendorProductVersionCPE
apachetomcat9cpe:/a:apache:tomcat:9

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

6.8 Medium

AI Score

Confidence

Low

0.006 Low

EPSS

Percentile

79.4%