Apache Tomcat 9.0.0.M1 < 9.0.43 Multiple Vulnerabilities

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

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

if (description)
{
  script_id(147164);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2020-9484", "CVE-2021-25122", "CVE-2021-25329");
  script_xref(name:"IAVA", value:"2021-A-0114-S");
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");

  script_name(english:"Apache Tomcat 9.0.0.M1 < 9.0.43 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote Apache Tomcat server is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of Tomcat installed on the remote host is prior to 9.0.43. It is, therefore, affected by multiple
vulnerabilities as referenced in the vendor advisory.

  - When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to
    7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the
    server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is
    configured with sessionAttributeValueClassNameFilter=null (the default unless a SecurityManager is used)
    or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker
    knows the relative file path from the storage location used by FileStore to the file the attacker has
    control over; then, using a specifically crafted request, the attacker will be able to trigger remote code
    execution via deserialization of the file under their control. Note that all of conditions a) to d) must
    be true for the attack to succeed. (CVE-2020-9484)

  - An information disclosure vulnerability exists when responding to new h2c connection requests, Apache Tomcat 
    versions 9.0.0.M1 to 9.0.41 could duplicate request headers and a limited amount of request body from one request 
    to another meaning user A and user B could both see the results of user A's request. (CVE-2021-25122)

  - when using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a 
    configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to 
    CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously 
    published mitigations for CVE-2020-9484 also apply to this issue. (CVE-2021-25329)

  - A remote code execution vulnerability via deserialization exists when using Apache Tomcat 9.0.0.M1 to 9.0.41 with a
    configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to 
    CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published 
    mitigations for CVE-2020-9484 also apply to this issue. (CVE-2021-25329)

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/4785433a226a20df6acbea49296e1ce7e23de453
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?00b2f5b4");
  # https://github.com/apache/tomcat/commit/d47c20a776e8919eaca8da9390a32bc8bf8210b1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c6d3f1a3");
  # https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.43
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7051ce31");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 9.0.43 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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-25122");

  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:"2021/02/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/05");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:tomcat");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2022 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(min:'9.0.0-M1', fixed: '9.0.43', severity:SECURITY_WARNING, granularity_regex: "^9(\.0)?$");