Vulnerabilities > CVE-2007-6193 - Information Exposure vulnerability in Citrix Netscaler 8.0

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
citrix
CWE-200
nessus
NVD
Published: 2007-11-30
Updated: 2018-10-15

Summary

The web management interface in Citrix NetScaler 8.0 build 47.8 stores the device's primary IP address in a cookie, which might allow remote attackers to obtain sensitive network configuration information if this address is not the same as the address being used by the web interface.

Vulnerable Configurations

Part Description Count
Application
Citrix
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyWeb Servers
NASL idNETSCALER_WEB_COOKIE_INFO.NASL
descriptionIt is possible to extract information about the remote Citrix NetScaler appliance obtained from the web management interface
last seen2020-06-01
modified2020-06-02
plugin id29221
published2007-12-06
reporterThis script is Copyright (c) 2007-2018 nnposter
sourcehttps://www.tenable.com/plugins/nessus/29221
titleNetScaler Web Management Interface IP Address Cookie Information Disclosure
code
# netscaler_web_cookie_info.nasl
# GPLv2
#
# History:
#
# 1.00, 11/21/07
# - Initial release

# Changes by Tenable:
# - Revised plugin title, changed family (9/2/09)
# - changed family again (9/23/09)
# - Added CPE and updated copyright (10/18/2012)

include("compat.inc");

if (description)
    {
    script_id(29221);
    script_version("1.16");
    script_cve_id("CVE-2007-6193");

    script_name(english:"NetScaler Web Management Interface IP Address Cookie Information Disclosure");

    script_summary(english:"Reports NetScaler web cookie information");
    script_family(english:"Web Servers");
 script_set_attribute(attribute:"synopsis", value:
"The remote web server is prone to an information disclosure attack." );
 script_set_attribute(attribute:"description", value:
"It is possible to extract information about the remote Citrix
NetScaler appliance obtained from the web management interface's
session cookie, including the appliance's main IP address and software
version." );
 script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/484182/100/0/threaded" );
 script_set_attribute(attribute:"solution", value: "None");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
 script_cwe_id(200);
 script_set_attribute(attribute:"plugin_publication_date", value: "2007/12/06");
 script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_set_attribute(attribute:"cpe",value:"cpe:/a:citrix:netscaler");
 script_end_attributes();

    script_category(ACT_GATHER_INFO);
    script_copyright(english:"This script is Copyright (c) 2007-2020 nnposter");
    script_dependencies("netscaler_web_login.nasl");
    script_require_keys("www/netscaler", "http/password");
    script_require_ports("Services/www",80);
    exit(0);
    }


include("misc_func.inc");
include("url_func.inc");
include("http_func.inc");

get_kb_item_or_exit("www/netscaler");
get_kb_item_or_exit("http/password");


function cookie_extract (cookie,parm)
{
local_var match;
match=eregmatch(string:cookie,pattern:' '+parm+'=([^; \r\n]*)',icase:TRUE);
if (isnull(match)) return NULL;
return match[1];
}


port=get_http_port(default:80, embedded:TRUE);
get_kb_item_or_exit("www/netscaler/"+port);
cookie = get_kb_item_or_exit("/tmp/http/auth/"+port);

found="";

nsip=cookie_extract(cookie:cookie,parm:"domain");
if (nsip && nsip+"."=~"^([0-9]{1,3}\.){4}$")
    found+='Main IP address  : '+nsip+'\n';

nsversion=urldecode(estr:cookie_extract(cookie:cookie,parm:"nsversion"));
if (nsversion)
    {
    replace_kb_item(name:"www/netscaler/"+port+"/version",
                           value:nsversion);
    found+='Software version : '+nsversion+'\n';
    }

if (!found)
 exit(0, "Netscaler version could not be extracted on port "+port+".");

report = string(
    "\n",
    "It was possible to determine the following information about the\n",
    "Citrix NetScaler appliance by examining the web management cookie :\n",
    "\n",
    found
);
security_warning(port:port,extra:report);

References