Vulnerabilities > CVE-2011-2083 - Cross-site Scripting vulnerability in Bestpractical RT

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN

Summary

Multiple cross-site scripting (XSS) vulnerabilities in Best Practical Solutions RT 3.x before 3.8.12 and 4.x before 4.0.6 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.

Vulnerable Configurations

Part Description Count
Application
Bestpractical
170

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.

Nessus

  • NASL familyCGI abuses
    NASL idRT_3_8_12_OR_4_0_6.NASL
    descriptionAccording to its self-reported version number, the Best Practical Solutions Request Tracker (RT) running on the remote web server is version 3.x prior to 3.8.12 or version 4.x prior to 4.0.6. It is, therefore, potentially affected by the following vulnerabilities : - The
    last seen2020-06-01
    modified2020-06-02
    plugin id61434
    published2012-08-06
    reporterThis script is Copyright (C) 2012-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/61434
    titleRequest Tracker 3.x < 3.8.12 / 4.x < 4.0.6 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(61434);
      script_version("1.9");
      script_cvs_date("Date: 2018/07/27 18:38:14");
    
      script_cve_id(
        "CVE-2011-2082",
        "CVE-2011-2083",
        "CVE-2011-2084",
        "CVE-2011-2085",
        "CVE-2011-4458",
        "CVE-2011-4459",
        "CVE-2011-4460",
        "CVE-2011-5092",
        "CVE-2011-5093"
      );
      script_bugtraq_id(53660);
    
      script_name(english:"Request Tracker 3.x < 3.8.12 / 4.x < 4.0.6 Multiple Vulnerabilities");
      script_summary(english:"Checks the version of Request Tracker.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote web server is running a Perl application that is affected
    by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "According to its self-reported version number, the Best Practical
    Solutions Request Tracker (RT) running on the remote web server is
    version 3.x prior to 3.8.12 or version 4.x prior to 4.0.6. It is,
    therefore, potentially affected by the following vulnerabilities :
    
      - The 'vulnerable-passwords' script fails to update the
        password-hash of disabled users, which could enable an
        attacker to more easily determine plaintext passwords
        using brute force methods. (CVE-2011-2082)
    
      - Multiple cross-site scripting vulnerabilities exist that
        an attacker can utilize to execute script code with the
        user's credentials. (CVE-2011-2083)
    
      - A remote, authenticated attacker can read the hashes of
        former passwords and the ticket correspondence history
        by accessing a privileged account. (CVE-2011-2084)
    
      - Multiple cross-site request forgery vulnerabilities
        exist which a remote attacker can exploit to hijack user
        authentication. (CVE-2011-2085)
    
      - A remote code execution vulnerability exists if the
        optional VERP configuration options (VERPPrefix and
        VERPDomain) are enabled. (CVE-2011-4458)
    
      - Groups are not properly disabled, allowing users in
        disabled groups to gain escalated privileges.
        (CVE-2011-4459)
    
      - A remote, authenticated attacker can inject SQL commands
        by utilizing access to a privileged account, allowing
        the disclosure or manipulation of arbitrary data on the
        back-end database. (CVE-2011-4460)
    
      - An unspecified vulnerability exists that allows remote
        attackers to gain privileges or execute a restricted
        amount of arbitrary code. (CVE-2011-5092)
    
      - The DisallowExecuteCode option is not properly
        implemented and allows a remote, authenticated attacker
        to bypass intended access restrictions and execute
        arbitrary code by using access to a privileged account.
        (CVE-2011-5093)
    
    Note that Nessus has not tested for these issues but has instead
    relied only on the application's self-reported version number.");
      #http://blog.bestpractical.com/2012/05/security-vulnerabilities-in-rt.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ebd34bfd");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Request Tracker 3.8.12 / 4.0.6 or later.");
      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:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
      script_set_attribute(attribute:"exploit_available", value:"false");
      script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/22");
      script_set_attribute(attribute:"patch_publication_date", value:"2012/05/22");
      script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/06");
    
      script_set_attribute(attribute:"potential_vulnerability", value:"true");
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:bestpractical:rt");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"CGI abuses");
    
      script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");
    
      script_dependencies("rt_detect.nasl");
      script_exclude_keys("Settings/disable_cgi_scanning");
      script_require_keys("installed_sw/RT", "Settings/ParanoidReport");
      script_require_ports("Services/www", 80);
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    include("http.inc");
    include("install_func.inc");
    
    app = 'RT';
    get_install_count(app_name:app, exit_if_zero:TRUE);
    
    port = get_http_port(default:80);
    install = get_single_install(app_name:app, port:port, exit_if_unknown_ver:TRUE);
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    path = install["path"];
    version = install["version"];
    install_loc = build_url(port:port, qs:path + "/");
    
    ver = split(version, sep:'.', keep:FALSE);
      for (i=0; i<max_index(ver); i++)
        ver[i] = int(ver[i]);
    
    # Versions less than 3.8.12 / 4.0.6 are affected.
    if (
      ver[0] < 3 ||
      (
        ver[0] == 3 &&
        (
          ver[1] < 8 || 
          (ver[1] == 8 && ver[2] < 12) ||
          (ver[1] == 8 && ver[2] == 12 && version =~ "(rc|pre|alpha|RC|test|CH|beta|preflight)")
        )
      ) ||
      (
        ver[0] == 4 && ver[1] == 0 &&
        (
          (ver[2] < 6) ||
          (ver[2] == 6 && version =~ "(rc|pre|alpha|RC|test|CH|beta|preflight)")
        )
      )
    )  
    {
      set_kb_item(name:"www/"+port+"/XSS", value:TRUE);
      set_kb_item(name:"www/"+port+"/XSRF", value:TRUE);
      set_kb_item(name:"www/"+port+"/SQLInjection", value:TRUE);
    
      if (report_verbosity > 0)
      {
        report =
          '\n  URL               : ' +install_loc+
          '\n  Installed version : ' +version+
          '\n  Fixed version     : 3.8.12 / 4.0.6\n';
        security_hole(port:port, extra:report);
      }
      else security_hole(port);
    }
    else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_loc, version);
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2480.NASL
    descriptionSeveral vulnerabilities were discovered in Request Tracker, an issue tracking system : - CVE-2011-2082 The vulnerable-passwords scripts introduced for CVE-2011-0009 failed to correct the password hashes of disabled users. - CVE-2011-2083 Several cross-site scripting issues have been discovered. - CVE-2011-2084 Password hashes could be disclosed by privileged users. - CVE-2011-2085 Several cross-site request forgery vulnerabilities have been found. If this update breaks your setup, you can restore the old behaviour by setting $RestrictReferrer to 0. - CVE-2011-4458 The code to support variable envelope return paths allowed the execution of arbitrary code. - CVE-2011-4459 Disabled groups were not fully accounted as disabled. - CVE-2011-4460 SQL injection vulnerability, only exploitable by privileged users. Please note that if you run request-tracker3.8 under the Apache web server, you must stop and start Apache manually. The
    last seen2020-03-17
    modified2012-06-29
    plugin id59758
    published2012-06-29
    reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/59758
    titleDebian DSA-2480-4 : request-tracker3.8 - several vulnerabilities
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_E0A969E4A51211E190B4E0CB4E266481.NASL
    descriptionBestPractical report : Internal audits of the RT codebase have uncovered a number of security vulnerabilities in RT. We are releasing versions 3.8.12 and 4.0.6 to resolve these vulnerabilities, as well as patches which apply atop all released versions of 3.8 and 4.0. The vulnerabilities addressed by 3.8.12, 4.0.6, and the below patches include the following : The previously released tool to upgrade weak password hashes as part of CVE-2011-0009 was an incomplete fix and failed to upgrade passwords of disabled users. RT versions 3.0 and above contain a number of cross-site scripting (XSS) vulnerabilities which allow an attacker to run JavaScript with the user
    last seen2020-06-01
    modified2020-06-02
    plugin id59283
    published2012-05-29
    reporterThis script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/59283
    titleFreeBSD : RT -- Multiple Vulnerabilities (e0a969e4-a512-11e1-90b4-e0cb4e266481)