ManageEngine EventLog Analyzer Default Credentials

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

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

if (description)
{
  script_id(77479);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_name(english:"ManageEngine EventLog Analyzer Default Credentials");

  script_set_attribute(attribute:"synopsis", value:
"The application on the remote web server uses a default set of known
credentials.");
  script_set_attribute(attribute:"description", value:
"The remote ManageEngine EventLog Analyzer web administration interface
uses a known set of default credentials.");
  script_set_attribute(attribute:"solution", value:
"Change the default 'admin' login credentials.");
  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:H/RL:ND/RC:ND");

  script_set_attribute(attribute:"plugin_publication_date", value:"2014/09/02");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:zohocorp:manageengine_eventlog_analyzer");
  script_set_attribute(attribute:"default_account", value:"true");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2014-2022 Tenable Network Security, Inc.");

  script_dependencies("manageengine_eventlog_analyzer_detect.nbin");
  script_require_keys("installed_sw/ManageEngine EventLog Analyzer");
  script_exclude_keys("global_settings/supplied_logins_only");
  script_require_ports("Services/www", 8400);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("url_func.inc");
include("webapp_func.inc");

function check_login(user,pass,port)
{
  local_var res,post;
  clear_cookiejar();

  # Get a SID first, newer versions of tomcat don't
  # set JSESSIONID on j_security_check, so you have
  # to try to get a protected resource first, the
  # SID is resource specific
  res = http_send_recv3(
    method       : "GET",
    port         : port,
    item         : "/event/aboutus.do",
    exit_on_fail : TRUE
  );

  if (empty_or_null(res)) return FALSE;

  post = 'j_username='+user+'&'+
         'j_password='+pass+'&'+
         'domains=Local Authentication&' +
         'loginButton=Login&' +
         'optionValue=hide&'+
         'forChecking=null';

  res = http_send_recv3(
    port         : port,
    method       : 'POST',
    item         : "/event/j_security_check",
    data         : post,
    content_type : "application/x-www-form-urlencoded",
    exit_on_fail : TRUE
  );

  # Login failed
  if (empty_or_null(res) ||  "302 Moved Temporarily" >!< res[0] || "isLoginPage: true" >< res[1]) return FALSE;

  # We're authenticated now, get about page
  res = http_send_recv3(
    method       : "GET",
    port         : port,
    item         : "/event/aboutus.do",
    exit_on_fail : TRUE
  );

  if (empty_or_null(res) || "403" >< res[0]) return FALSE;
  else if (!empty_or_null(eregmatch(pattern:"Build Version&nbsp",string:res[2]))) return TRUE;
  return FALSE;
}

app = "ManageEngine EventLog Analyzer";
get_install_count(app_name:app, exit_if_zero:TRUE);
port     = get_http_port(default:8400);
install  = get_single_install(app_name:app,port:port);


if (supplied_logins_only) audit(AUDIT_SUPPLIED_LOGINS_ONLY);

url      = build_url(port:port, qs:install["path"]);
creds    = make_list("admin", "guest");
logincgi = "/event/j_security_check";

# Check each potential credential
report = "";
foreach cred (creds)
{
  if (check_login(user:cred,pass:cred,port:port))
  {
    report += '\n  Username : ' + cred + 
              '\n  Password : ' + cred +
              '\n';
  }
}

if (report)
{
  if (report_verbosity > 0)
  {
    header  = 'Nessus was able to gain access using the following URL';
    trailer = 'and the following set of credentials :\n' + report;
    report  = get_vuln_report(
      items   : logincgi,
      port    : port,
      header  : header,
      trailer : trailer
    );
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, url);