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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.APACHE_ATS_9_1_1.NASL
HistoryNov 07, 2023 - 12:00 a.m.

Apache Traffic Server 8.x < 8.1.3 / 9.x < 9.1.1 Multiple Vulnerabilities

2023-11-0700:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
7
apache traffic server
version 8.x
version 9.x
buffer overflow
improper input validation
cve-2021-43082
cve-2021-41585
remote code execution

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.9 Medium

AI Score

Confidence

Low

0.003 Low

EPSS

Percentile

65.6%

According to its self reported version, the remote Apache Traffic Server install is affected by multiple vulnerabilities.

  • Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) vulnerability in the stats-over-http plugin of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.
    (CVE-2021-43082)

  • Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker to make the server stop accepting new connections. (CVE-2021-41585)

Note that Nessus did not actually test for these issues, but instead has relied on the version found in the server’s banner.

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

include('compat.inc');

if (description)
{
  script_id(184807);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/08");

  script_cve_id(
    "CVE-2021-37147",
    "CVE-2021-37148",
    "CVE-2021-37149",
    "CVE-2021-41585",
    "CVE-2021-43082"
  );

  script_name(english:"Apache Traffic Server 8.x < 8.1.3 / 9.x < 9.1.1 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self reported version, the remote Apache Traffic Server install is affected by multiple vulnerabilities.

  - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin
    of Apache Traffic Server allows an attacker to overwrite memory. This issue affects Apache Traffic Server 9.1.0.
    (CVE-2021-43082)

  - Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker
    to make the server stop accepting new connections. (CVE-2021-41585)

Note that Nessus did not actually test for these issues, but instead has relied on the version found in the
server's banner.");
  # https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?db07235e");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Traffic Server version 8.1.3, 9.1.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:H/I:H/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-2021-43082");

  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:"2021/11/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:traffic_server");
  script_end_attributes();

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

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

  script_dependencies("apache_traffic_server_version.nasl");
  script_require_keys("installed_sw/Apache Traffic Server");
  script_require_ports("Services/www", 80, 443, 8080);

  exit(0);
}

include('http.inc');
include('vcf.inc');

var port = get_http_port(default:8080);

var app_info = vcf::get_app_info(app:'Apache Traffic Server', port:port, webapp:TRUE);

var constraints = [
  { 'min_version':'8.0', 'fixed_version' : '8.1.3' },
  { 'min_version':'9.0', 'fixed_version' : '9.1.1' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);
VendorProductVersionCPE
apachetraffic_servercpe:/a:apache:traffic_server

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.9 Medium

AI Score

Confidence

Low

0.003 Low

EPSS

Percentile

65.6%