Vulnerabilities > CVE-2013-0538 - Cross-site Scripting vulnerability in IBM Lotus Notes

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
ibm
CWE-79
nessus

Summary

Cross-site scripting (XSS) vulnerability in IBM Lotus Notes 8.x before 8.5.3 FP4 Interim Fix 1 and 9.0 before Interim Fix 1 allows remote attackers to inject arbitrary web script or HTML via a SCRIPT element in an HTML e-mail message, aka SPRs JMOY95BLM6 and JMOY95BN49.

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 familyWindows
NASL idLOTUS_NOTES_ACCEPTS_JAVA.NASL
descriptionThe IBM Notes application installed on the remote Windows host accepts Java applet tags and JavaScript tags inside HTML emails, making it possible to load Java applets and scripts from a remote location.
last seen2020-06-01
modified2020-06-02
plugin id66637
published2013-05-28
reporterThis script is Copyright (C) 2013-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/66637
titleIBM Notes Accepts JavaScript Tags Inside HTML Emails
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(66637);
  script_version("1.6");
  script_cvs_date("Date: 2018/11/15 20:50:27");

  script_cve_id("CVE-2013-0127", "CVE-2013-0538");
  script_bugtraq_id(59589, 59590);
  script_xref(name:"CERT", value:"912420");

  script_name(english:"IBM Notes Accepts JavaScript Tags Inside HTML Emails");
  script_summary(english:"Checks variables in notes.ini file");

  script_set_attribute(attribute:"synopsis", value:
"The version of IBM Notes installed on the remote Windows host accepts
Java applet tags and JavaScript tags inside HTML emails.");
  script_set_attribute(attribute:"description", value:
"The IBM Notes application installed on the remote Windows host accepts
Java applet tags and JavaScript tags inside HTML emails, making it
possible to load Java applets and scripts from a remote location.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2013/Apr/262");
  # https://www.ibm.com/blogs/psirt/security-bulletin-ibm-notes-accepts-java-applet-and-javascript-tags-inside-html-emails-cve-2013-0127-cve-2013-0538-2/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4ab23674");
  script_set_attribute(attribute:"see_also", value:"https://www-304.ibm.com/support/docview.wss?uid=swg21633819");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM Notes 8.5.3 Fix Pack 4 / 9.0 Interim Fix 1 or apply the
workaround.");
  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:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/04/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/05/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/05/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:lotus_notes");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_hotfixes.nasl", "lotus_notes_installed.nasl");
  script_require_keys("SMB/Registry/Enumerated", "SMB/Lotus_Notes/Installed");
  script_require_ports(139, 445);

  exit(0);
}

include("audit.inc");
include("misc_func.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_reg_query.inc");

# Walk up the path and check if each directory
# in the path is a reparse point.
function reparse_points_exist_in_path(check_path)
{
  local_var check_ret;

  while (check_path != '\\' && strlen(check_path) > 0)
  {
    check_ret = FindFirstFile(pattern:check_path);

    # Look for reparse point directories
    # in file attributes.
    if (!isnull(check_ret[2]) &&
      # FILE_ATTRIBUTE_DIRECTORY
      ((check_ret[2] >> 4) & 0x1) &&
      # FILE_ATTRIBUTE_REPARSE_POINT
      ((check_ret[2] >> 10) & 0x1)
    )
      return TRUE;

    check_path = ereg_replace(
      pattern:"^(.*)\\([^\\]*)?$",
      replace:"\1",
      string:check_path
    );
  }
  return FALSE;
}
appname = 'IBM Lotus Notes';
kb_base = 'SMB/Lotus_Notes';

version = get_kb_item_or_exit(kb_base + '/Version');
ver_ui = get_kb_item_or_exit(kb_base + '/Version_UI');
apppath = get_kb_item_or_exit(kb_base + '/Path');

# Connect to the appropriate share.
name    =  kb_smb_name();
port    =  kb_smb_transport();
if (!get_port_state(port)) audit(AUDIT_PORT_CLOSED, port);
login   =  kb_smb_login();
pass    =  kb_smb_password();
domain  =  kb_smb_domain();

path = ereg_replace(pattern:"^(.+)\\$", replace:"\1", string:apppath);
share = hotfix_path2share(path:path);

# In case we need it later, get the user directories
registry_init();
hklm = registry_hive_connect(hive:HKEY_LOCAL_MACHINE, exit_on_fail:TRUE);

key = "SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\ProfilesDirectory";
pdir = get_registry_value(handle:hklm, item:key);
if (!isnull(pdir))
{
  if (stridx(tolower(pdir), "%systemdrive%") == 0)
  {
    key = "SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRoot";
    systemroot = get_registry_value(handle:hklm, item:key);
    if (isnull(systemroot)) exit(1, 'Failed to get the system root on the remote host.');
    systemroot = ereg_replace(pattern:'^([A-Za-z]:).*', replace:"\1", string:systemroot);
    pdir = systemroot + substr(pdir, strlen("%systemdrive%"));
  }
}
RegCloseKey(handle:hklm);
close_registry(close:FALSE);

rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
  NetUseDel();
  audit(AUDIT_SHARE_FAIL, share);
}


vuln = FALSE;
ver = split(version, sep:'.', keep:FALSE);
for (i=0; i < max_index(ver); i++)
  ver[i] = int(ver[i]);

fix = '';
# Only check for a patched version if the installed
# version is either 8.x or 9.x.
if (version =~ '^8\\.0\\.[0-2][^0-9]')
{
  vuln = TRUE;
  fix = '8.5.34.13086';
}
if (version =~ '^8\\.5\\.' && ver_compare(ver:version, fix:'8.5.34.13086') < 0)
{
  vuln = TRUE;
  fix = '8.5.34.13086';
}
else if (ver[0] == 9)
{
  exe = ereg_replace(pattern:'^[A-Za-z]:(.*)', replace:"\1\nsd.exe", string:apppath);
  fh = CreateFile(
    file:exe,
    desired_access:GENERIC_READ,
    file_attributes:FILE_ATTRIBUTE_NORMAL,
    share_mode:FILE_SHARE_READ,
    create_disposition:OPEN_EXISTING
  );
  if (isnull(fh))
  {
    NetUseDel();
    audit(AUDIT_VER_FAIL, exe);
  }
  ret = GetFileVersionEx(handle:fh);
  CloseFile(handle:fh);
  if (!isnull(ret))
  {
    timestamp = ret['dwTimeDateStamp'];
  }
  if (isnull(timestamp))
    exit(1, 'Failed to get the timestamp of ' + apppath + "\nsd.exe.");
  if (timestamp < 1367003838)
  {
    fixtimestamp = 1367003838;
    vuln = TRUE;
  }
}

# If the version is vulnerable, check for the workaround
if (vuln)
{
  ini =  ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1\notes.ini", string:path);
  fh = CreateFile(
    file:ini,
    desired_access:GENERIC_READ,
    file_attributes:FILE_ATTRIBUTE_NORMAL,
    share_mode:FILE_SHARE_READ,
    create_disposition:OPEN_EXISTING
  );
  if (isnull(fh))
  {
    # If Notes is installed for multiple users, the configuration is on a per-user basis
    if (isnull(pdir))
    {
      NetUseDel();
      exit(1, 'Failed to get the user directories.');
    }
    share2 = hotfix_path2share(path:pdir);
    if (share2 != share)
    {
      NetUseDel(close:FALSE);
      share = hotfix_path2share(path:pdir);
    }
    dirpat = ereg_replace(pattern:'^[A-Za-z]:(.*)', replace:"\1\*", string:pdir);

    rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
    if (rc != 1)
    {
      close_registry();
      audit(AUDIT_SHARE_FAIL, share);
    }

    paths = make_array();
    # Loop over user directories
    retx = FindFirstFile(pattern:dirpat);
    while (!isnull(retx[1]))
    {
      path = NULL;
      user = retx[1];
      if ((retx[2] && FILE_ATTRIBUTE_DIRECTORY) && user != '.' && user != '..')
      {
        # 2k / 2k3 / XP
        if (winver < 6)
          path = pdir + '\\' + user;
        else path = pdir + '\\' + user + "\AppData";

        if (!isnull(path))
        {
          lcpath = tolower(path);
          if (!paths[user]) paths[user] = path;
        }
      }
      retx = FindNextFile(handle:retx);
    }

    if (max_index(keys(paths)))
    {
      foreach user (keys(paths))
      {
        info = '';
        strip_path = dirpath - "\*";
        if (reparse_points_exist_in_path(check_path:strip_path))
          continue;
        path = paths[user];

        if (winver < 6)
          path = path + "\Local Settings\Application Data\Lotus\Notes\Data";
        else
          path = path + "\Local\Lotus\Notes\Data";
        ini = ereg_replace(pattern:'^[A-Za-z]:(.*)', string:path, replace:"\1\notes.ini");

        fh = CreateFile(
          file:ini,
          desired_access:GENERIC_READ,
          file_attributes:FILE_ATTRIBUTE_NORMAL,
          share_mode:FILE_SHARE_READ,
          create_disposition:OPEN_EXISTING
        );
        if (!isnull(fh))
        {
          data = '';
          settings = make_list();
          fsize = GetFileSize(handle:fh);
          off = 0;
          while (off <= fsize)
          {
            data = ReadFile(handle:fh, length:10240, offset:off);
            if (strlen(data) == 0) break;
            settings = make_list(settings, split(data, keep:FALSE));

            off += 10240;
          }
          CloseFile(handle:fh);

         foundconfigs = make_array('EnableJavaApplets', FALSE, 'EnableJavaScript', FALSE, 'EnableLiveConnect', FALSE);
         found = 0;
         # Loop over the settings and check if JavaScript has been disabled
         for (i=0; i < max_index(settings); i++)
         {
           if ('EnableJavaApplets=' >< settings[i])
           {
             found++;
             foundconfigs['EnableJavaApplets'] = TRUE;
             setting = split(settings[i], sep:'=', keep:FALSE);
               if (setting[1])
                 info += '\n    - EnableJavaApplets';
           }
           else if ('EnableJavaScript=' >< settings[i])
           {
             found++;
             foundconfigs['EnableJavaScript'] = TRUE;
             setting = split(settings[i], sep:'=', keep:FALSE);
             if (setting[1])
               info += '\n    - EnableJavaScript';
           }
           else if ('EnableLiveConnect=' >< settings[i])
           {
             found++;
             foundconfigs['EnableLiveConnect'] = TRUE;
             setting = split(settings[i], sep:'=', keep:FALSE);
             if (setting[1])
               info += '\n    - EnableLiveConnect';
           }
           if (found == 3) break;
         }

         # If any of the settings weren't found in notes.ini, assume
         # they are enabled
         foreach key (keys(foundconfigs))
         {
           if (!foundconfigs[key])
             info += '\n  - ' + key;
         }
         if (info)
         {
           report +=
             '\n  ' + user + info;
         }
        }
      }
    }
    NetUseDel();
    if (report)
    {
      if (report_verbosity > 0)
      {
        extra =
          '\n  Path              : ' + apppath +
          '\n  Installed version : ' + version;
        if (fixtimestamp)
        {
          extra +=
            '\n  File              : ' + apppath + "\nsd.exe" +
            '\n  File Timestamp    : ' + timestamp +
            '\n  Fixed Timestamp   : ' + fixtimestamp + '\n';
        }
        else
          extra += '\n  Fixed version     : ' + fix + '\n';
        report =
          extra +
          '\n  Further, the following configuration settings are enabled for the' +
          '\n  listed users :' +
          '\n' +
          report + '\n';
        security_warning(port:port, extra:report);
      }
      else security_warning(port);
      exit(0);
    }
    else exit(0, 'The host is not affected because the workaround is in place.');
  }
  else
  {
    data = '';
    settings = make_list();
    fsize = GetFileSize(handle:fh);
    off = 0;
    while (off <= fsize)
    {
      data = ReadFile(handle:fh, length:10240, offset:off);
      if (strlen(data) == 0) break;
      settings = make_list(settings, split(data, keep:FALSE));

      off += 10240;
    }
    CloseFile(handle:fh);
    NetUseDel();

    foundconfigs = make_array('EnableJavaApplets', FALSE, 'EnableJavaScript', FALSE, 'EnableLiveConnect', FALSE);
    found = 0;
    # Loop over the settings and check if JavaScript has been disabled
    for (i=0; i < max_index(settings); i++)
    {
      if ('EnableJavaApplets=' >< settings[i])
      {
        found++;
        foundconfigs['EnableJavaApplets'] = TRUE;
        setting = split(settings[i], sep:'=', keep:FALSE);
        if (setting[1])
          info += '\n  - EnableJavaApplets';
      }
      else if ('EnableJavaScript=' >< settings[i])
      {
        found++;
        foundconfigs['EnableJavaScript'] = TRUE;
        setting = split(settings[i], sep:'=', keep:FALSE);
        if (setting[1])
          info += '\n  - EnableJavaScript';
      }
      else if ('EnableLiveConnect=' >< settings[i])
      {
        found++;
        foundconfigs['EnableLiveConnect'] = TRUE;
        setting = split(settings[i], sep:'=', keep:FALSE);
        if (setting[1])
          info += '\n  - EnableLiveConnect';
      }
      if (found == 3) break;
    }

    # If any of the settings weren't found in notes.ini, assume
    # they are enabled
    foreach key (keys(foundconfigs))
    {
      if (!foundconfigs[key])
         info += '\n  - ' + key;
    }
    if (info)
    {
      if (report_verbosity > 0)
      {
        report =
          '\n  Path              : ' + apppath +
          '\n  Installed version : ' + version;
        if (fixtimestamp)
        {
          report +=
            '\n  File              : ' + apppath + "\nsd.exe" +
            '\n  File Timestamp    : ' + timestamp +
            '\n  Fixed Timestamp   : ' + fixtimestamp + '\n';
        }
        else
          report += '\n  Fixed version     : ' + fix + '\n';
          report +=
            '\n  Further, the following configuration settings are enabled : ' +
            info;
        security_warning(port:port, extra:report);
      }
      else security_warning(port);
      exit(0);
    }
    else exit(0, 'The host is not affected because the workaround is in place.');
  }
}
else
{
  NetUseDel();
  audit(AUDIT_INST_PATH_NOT_VULN, appname, ver_ui, apppath);
}