Vulnerabilities > CVE-2003-1371 - Cross-Site Scripting vulnerability in Nuked-Klan 1.3Beta

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
nuked-klan
CWE-79
nessus
exploit available

Summary

Nuked-Klan 1.3b, and possibly earlier versions, allows remote attackers to obtain sensitive server information via an op parameter set to phpinfo for the (1) Team, (2) News, or (3) Liens modules.

Vulnerable Configurations

Part Description Count
Application
Nuked-Klan
1

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Embedding Scripts in Non-Script Elements
    This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Cross-Site Scripting in Error Pages
    An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.

Exploit-Db

descriptionNuked-Klan 1.3 Remote Information Disclosure Vulnerability. CVE-2003-1371. Webapps exploit for php platform
idEDB-ID:22277
last seen2016-02-02
modified2003-02-23
published2003-02-23
reportergregory Le Bras
sourcehttps://www.exploit-db.com/download/22277/
titleNuked-Klan 1.3 - Remote Information Disclosure Vulnerability

Nessus

  • NASL familyCGI abuses
    NASL idNUKED_CLAN_CMD_EXEC.NASL
    descriptionIt is possible to execute arbitrary PHP code on the remote host using a flaw in the
    last seen2020-06-01
    modified2020-06-02
    plugin id11282
    published2003-02-28
    reporterThis script is Copyright (C) 2003-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/11282
    titleNuked-Klan 1.2b Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    # Ref:
    # Message-ID: <[email protected]>
    # From: "Gregory" Le Bras <[email protected]>
    # To: [email protected]
    # Subject: [SCSA-006] XSS & Function
    #
    # We don't check for all the listed BIDs since no patch has
    # ever been made (ie: vulnerable to one => vulnerable to all)
    
    
    
    include("compat.inc");
    
    if(description)
    {
     script_id(11282);
     script_version ("1.33");
     script_cve_id("CVE-2003-1238", "CVE-2003-1370", "CVE-2003-1371");
     script_bugtraq_id(6697, 6699, 6700, 6916, 6917);
    
     script_name(english:"Nuked-Klan 1.2b Multiple Vulnerabilities");
     
     script_set_attribute(attribute:"synopsis", value:
    "The remote web server contains a PHP application that is affected by
    multiple vulnerabilities." );
     script_set_attribute(attribute:"description", value:
    "It is possible to execute arbitrary PHP code on the remote host using
    a flaw in the 'Nuked Klan' package.  An attacker may leverage this
    flaw to leak information about the remote system or even execute
    arbitrary commands. 
    
    In addition to this problem, this service is vulnerable to various
    cross-site scripting attacks." );
     script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2003/Mar/265" );
     script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2003/Mar/278" );
     script_set_attribute(attribute:"solution", value:
    "Contact the author for a patch." );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:ND");
      script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
      script_set_attribute(attribute:"exploit_available", value:"true");
     script_cwe_id(79);
    
     script_set_attribute(attribute:"plugin_publication_date", value: "2003/02/28");
     script_cvs_date("Date: 2018/11/15 20:50:18");
     script_set_attribute(attribute:"plugin_type", value:"remote");
     script_end_attributes();
    
     script_summary(english:"Executes phpinfo()");
     script_category(ACT_ATTACK);
     script_copyright(english:"This script is Copyright (C) 2003-2018 Tenable Network Security, Inc.");
     script_family(english:"CGI abuses");
     script_dependencie("http_version.nasl");
     script_require_ports("Services/www", 80);
     script_exclude_keys("Settings/disable_cgi_scanning");
     script_require_keys("www/PHP");
     exit(0);
    }
    
    #
    # The script code starts here
    #
    
    include("global_settings.inc");
    include("misc_func.inc");
    include("http.inc");
    
    port = get_http_port(default:80, embedded: 0, php: 1);
    
    function check(loc, module)
    {
     local_var	url, w, r, report;
    
     if (! loc && report_paranoia < 2) return;	# Might generate a FP
    
     url = strcat(loc, "/index.php?file=", module, "&op=phpinfo");
     w = http_send_recv3(method:"GET", item: url, port:port, exit_on_fail: 1);
     r = strcat(w[0], w[1], '\r\n', w[2]);
     if("allow_call_time_pass_reference" >< r){
            report = string(
              "A vulnerable instance of Nuke Clan can be found at the following URL :\n",
              "\n",
              "  ", build_url(port:port, qs:url), "\n"
            );
     	security_warning(port:port, extra:report);
    	set_kb_item(name: 'www/'+port+'/XSS', value: TRUE);
    	exit(0);
      }
    }
    
    dirs = list_uniq(make_list("/nuked-clan", "/clan-nic", "/klan", "/clan", cgi_dirs()));
    
    
    foreach dir (dirs)
    {
     check(loc:dir, module:"News");
     #check(loc:dir, module:"Team");
     #check(loc:dir, module:"Lien");
    }
    
  • NASL familyCGI abuses
    NASL idNUKED_KLAN_XSS.NASL
    descriptionThe instance of Nuked-klan running on the remote web server is affected by multiple vulnerabilities due to a failure to sanitize user-supplied input to several parameters before using them in the
    last seen2020-06-01
    modified2020-06-02
    plugin id11447
    published2003-03-23
    reporterThis script is Copyright (C) 2003-2018 k-otik.com
    sourcehttps://www.tenable.com/plugins/nessus/11447
    titleNuked-Klan index.php Multiple Module Vulnerabilities
    code
    #
    # This test was rewritten by Tenable Network Security, Inc.
    #
    #  Message-ID: <[email protected]>
    #  From: Ertan Kurt <mailto:[email protected]>
    #  To: <[email protected]>
    #  Subject: Some XSS vulns
    #
    
    # Changes by Tenable:
    # - Revised plugin title (3/27/2009)
    # - Changed family (5/21/2009)
    # - Added response request and output in report. Modernized the descriptive text. (7/2016)
    
    include("compat.inc");
    
    if (description)
    {
      script_id(11447);
      script_version("1.40");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/12");
    
      script_cve_id("CVE-2003-1238", "CVE-2003-1371");
      script_bugtraq_id(6916, 6917);
      script_xref(name:"EDB-ID", value:"22276");
    
      script_name(english:"Nuked-Klan index.php Multiple Module Vulnerabilities");
      script_summary(english:"Determine if Nuked-klan is vulnerable to an XSS attack.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote web server contains a PHP application that is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The instance of Nuked-klan running on the remote web server is
    affected by multiple vulnerabilities due to a failure to sanitize
    user-supplied input to several parameters before using them in the
    'Team', 'News', and 'Liens' modules to display dynamic HTML. An
    unauthenticated, remote attacker can exploit these issues to execute
    arbitrary script code in a user's browser session.
    
    Additionally, an information disclosure vulnerability exists that
    allows a remote attacker to disclose the physical path of the
    directory in which the application is installed; however, Nessus did
    not test for this.");
      script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2003/Feb/319");
      script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2003/Mar/265");
      script_set_attribute(attribute:"solution", value:"Contact the author for a patch.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:U/RC:ND");
      script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_cwe_id(79);
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2003/03/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2003/03/23");
    
      script_set_attribute(attribute:"potential_vulnerability", value:"true");
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:nuked-klan:nuked-klan");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"CGI abuses");
    
      script_copyright(english:"This script is Copyright (C) 2003-2020 k-otik.com");
    
      script_dependencie("http_version.nasl", "cross_site_scripting.nasl");
      script_exclude_keys("Settings/disable_cgi_scanning");
      script_require_keys("www/PHP");
      script_require_ports("Services/www", 80);
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("http_func.inc");
    include("http_keepalive.inc");
    
    port = get_http_port(default:80, embedded:TRUE);
    
    if (get_kb_item("www/"+port+"/generic_xss"))
      exit(0, "The web server on port "+port+" is vulnerable to XSS.");
    
    xss_pat = "<script>window.alert('test');</script>";
    
    foreach d (cgi_dirs())
    {
      url = d + "/index.php?file=Liens&op=" + raw_string(0x22) + "><script>window.alert('test');</script>";
      req = http_get(item:url, port:port);
      buf = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);
      if( buf == NULL ) exit(0, "An empty response was received from the web server on port", port);
    
      if(ereg(pattern:"^HTTP/[0-9]\.[0-9] +200 .*", string:buf) &&
        xss_pat >< buf)
      {
        output = strstr(buf, xss_pat);
        if (isnull(output)) output = buf;
    
        security_report_v4(
          port     : port,
          severity : SECURITY_WARNING,
          generic  : TRUE,
          request  : make_list(build_url(qs:url, port:port)),
          output   : output,
          xss      : TRUE
        );
        exit(0);
      }
    }
    exit(0, "The web server on port "+port+" is not affected.");