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nessusThis script is Copyright (C) 2009-2022 Tenable Network Security, Inc.SERVU_9_1_0_0.NASL
HistoryNov 30, 2009 - 12:00 a.m.

Serv-U < 9.1.0.0

2009-11-3000:00:00
This script is Copyright (C) 2009-2022 Tenable Network Security, Inc.
www.tenable.com
29

10 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.954 High

EPSS

Percentile

99.4%

According to its banner, the installed version of Serv-U is earlier than 9.1.0.0, and therefore affected by the following issues :

  • A boundary error in the web administration interface when parsing session cookies can result in a stack-based buffer overflow. (CVE-2009-4873)

  • A boundary error in the TEA decoding algorithm can result in a stack-based buffer overflow when processing a long hexadecimal string. (CVE-2009-4006)

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

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

if (description)
{
  script_id(42934);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2009-4006", "CVE-2009-4873");
  script_bugtraq_id(36895, 37051);
  script_xref(name:"SECUNIA", value:"37228");

  script_name(english:"Serv-U < 9.1.0.0");

  script_set_attribute(attribute:"synopsis", value:
"The remote FTP server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the installed version of Serv-U is earlier
than 9.1.0.0, and therefore affected by the following issues :

  - A boundary error in the web administration interface
    when parsing session cookies can result in a stack-based
    buffer overflow. (CVE-2009-4873)

  - A boundary error in the TEA decoding algorithm can
    result in a stack-based buffer overflow when processing
    a long hexadecimal string. (CVE-2009-4006)");
  script_set_attribute(attribute:"see_also", value:"http://www.rangos.de/ServU-ADV.txt");
  script_set_attribute(attribute:"see_also", value:"https://secuniaresearch.flexerasoftware.com/secunia_research/2009-46/");
  script_set_attribute(attribute:"see_also", value:"https://support.solarwinds.com/Success_Center/Serv-U_Managed_File_Transfer_Serv-U_FTP_Server/Serv-U_Documentation/release_notes");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Serv-U version 9.1.0.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Rhinosoft Serv-U Session Cookie Buffer Overflow');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/11/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/11/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/11/30");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:serv-u:serv-u");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"FTP");

  script_copyright(english:"This script is Copyright (C) 2009-2022 Tenable Network Security, Inc.");

  script_dependencies("servu_version.nasl");
  script_require_keys("ftp/servu");
  script_require_ports("Services/ftp", 21);

  exit(0);
}


include("global_settings.inc");
include("misc_func.inc");
include("ftp_func.inc");


port    = get_ftp_port(default:21);
version = get_kb_item_or_exit('ftp/'+port+'/servu/version');
source  = get_kb_item_or_exit('ftp/'+port+'/servu/source');

if (
  version =~ "^[6-9]\." &&
  ver_compare(ver: version , fix: '9.1', strict: FALSE) == -1
)
{
  if (report_verbosity > 0)
  {
    report = 
      '\n  Version source    : ' + source +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : 9.1.0.0' +
      '\n';
    security_hole(port: port, extra: report);
  }
  else security_hole(port);
}
else exit(0, "The Serv-U version "+version+" install listening on port "+port+" is not affected.");
VendorProductVersionCPE
serv-userv-ucpe:/a:serv-u:serv-u

10 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.954 High

EPSS

Percentile

99.4%

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