Apache mod_status /server-status Information Disclosure

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(10677);
  script_version("1.25");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/22");


  script_name(english:"Apache mod_status /server-status Information Disclosure");
  script_summary(english:"Checks access to /server-status");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server discloses process information." );
  script_set_attribute(attribute:"description", value:
"A remote unauthenticated attacker can obtain an overview of the
remote Apache web server's activity and performance by requesting
the URL '/server-status'.  This overview includes information
such as current hosts and requests being processed, the number of
workers idle and service requests, and CPU utilization." );
  script_set_attribute(attribute:"solution", value:
"Update Apache's configuration file(s) to either disable mod_status or
restrict access to specific hosts.");
  script_set_attribute(attribute:"see_also",value:"https://www.owasp.org/index.php/SCG_WS_Apache");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"manual");
  script_set_attribute(attribute:"cvss_score_rationale", value:"Tenable score for information disclosure.");

  script_set_attribute(attribute:"plugin_publication_date", value: "2001/05/28");
  script_set_attribute(attribute:"vuln_publication_date", value: "1999/01/01");

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

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

  script_copyright(english:"This script is Copyright (C) 2018-2026 Tenable Network Security, Inc.");

  script_dependencies("apache_http_version.nasl");
  script_require_ports("Services/www", 80);
  script_require_keys("installed_sw/Apache");
  exit(0);
}

include("http.inc");
include("install_func.inc");
include('report.inc');

get_install_count(app_name:"Apache", exit_if_zero:TRUE);
port = get_http_port(default:80);
install = get_single_install(app_name:"Apache", port:port);

res = http_send_recv3(method:"GET", port:port, item:"/server-status");
if ("200" >< res[0] && "Server Status" >< res[2])
{
  var report_items = {
    'requests' : [build_url(qs:"/server-status", port:port)],
    'file'     : 'server-status',
    'output'   : res[2]
  };

  report::build_and_report(port:port, severity:SECURITY_WARNING, report_items:report_items);
}
else
{
  audit(AUDIT_LISTEN_NOT_VULN, "Apache", port, install["version"]);
}