Vulnerabilities > CVE-2016-0396 - Command Injection vulnerability in IBM Bigfix Platform

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
ibm
CWE-77
nessus

Summary

IBM Tivoli Endpoint Manager could allow a user under special circumstances to inject commands that would be executed with unnecessary higher privileges than expected.

Vulnerable Configurations

Part Description Count
Application
Ibm
4

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Cause Web Server Misclassification
    An attack of this type exploits a Web server's decision to take action based on filename or file extension. Because different file types are handled by different server processes, misclassification may force the Web server to take unexpected action, or expected actions in an unexpected sequence. This may cause the server to exhaust resources, supply debug or system data to the attacker, or bind an attacker to a remote process. This type of vulnerability has been found in many widely used servers including IIS, Lotus Domino, and Orion. The attacker's job in this case is straightforward, standard communication protocols and methods are used and are generally appended with malicious information at the tail end of an otherwise legitimate request. The attack payload varies, but it could be special characters like a period or simply appending a tag that has a special meaning for operations on the server side like .jsp for a java application server. The essence of this attack is that the attacker deceives the server into executing functionality based on the name of the request, i.e. login.jsp, not the contents.
  • LDAP Injection
    An attacker manipulates or crafts an LDAP query for the purpose of undermining the security of the target. Some applications use user input to create LDAP queries that are processed by an LDAP server. For example, a user might provide their username during authentication and the username might be inserted in an LDAP query during the authentication process. An attacker could use this input to inject additional commands into an LDAP query that could disclose sensitive information. For example, entering a * in the aforementioned query might return information about all users on the system. This attack is very similar to an SQL injection attack in that it manipulates a query to gather additional information or coerce a particular return value.
  • Command Delimiters
    An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or a blacklist input validation, as opposed to whitelist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or blacklist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
  • File System Function Injection, Content Based
    An attack of this type exploits the host's trust in executing remote content including binary files. The files are poisoned with a malicious payload (targeting the file systems accessible by the target software) by the attacker and may be passed through standard channels such as via email, and standard web content like PDF and multimedia files. The attacker exploits known vulnerabilities or handling routines in the target processes. Vulnerabilities of this type have been found in a wide variety of commercial applications from Microsoft Office to Adobe Acrobat and Apple Safari web browser. When the attacker knows the standard handling routines and can identify vulnerabilities and entry points they can be exploited by otherwise seemingly normal content. Once the attack is executed, the attackers' program can access relative directories such as C:\Program Files or other standard system directories to launch further attacks. In a worst case scenario, these programs are combined with other propagation logic and work as a virus.
  • Exploiting Multiple Input Interpretation Layers
    An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.

Nessus

NASL familyWeb Servers
NASL idIBM_BIGFIX_WEBREPORTS_CMD_INJECTION.NASL
descriptionAccording to its self-reported version, the IBM BigFix Platform application running on the remote host is 9.x prior to 9.5.3. It is, therefore, affected by a command injection vulnerability in the Web Reports component. An unauthenticated, remote attacker can exploit this to inject commands that are executed with privileges that are unnecessary and higher than expected. Note that if the Web Reports component is installed as a stand-alone application without other BigFix components, then it not affected by the vulnerability. IBM BigFix was formerly known as Tivoli Endpoint Manager, IBM Endpoint Manager, and IBM BigFix Endpoint Manager.
last seen2020-06-01
modified2020-06-02
plugin id94961
published2016-11-18
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/94961
titleIBM BigFix Platform 9.x < 9.5.3 Remote Command Injection
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94961);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/14");

  script_cve_id("CVE-2016-0396");
  script_bugtraq_id(94155);

  script_name(english:"IBM BigFix Platform 9.x < 9.5.3 Remote Command Injection");
  script_summary(english:"Checks the version of the IBM BigFix Web Reports.");

  script_set_attribute(attribute:"synopsis", value:
"An infrastructure management application running on the remote host
is affected by a remote command injection vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the IBM BigFix Platform
application running on the remote host is 9.x prior to 9.5.3. It is,
therefore, affected by a command injection vulnerability in the Web
Reports component. An unauthenticated, remote attacker can exploit
this to inject commands that are executed with privileges that are
unnecessary and higher than expected. Note that if the Web Reports
component is installed as a stand-alone application without other
BigFix components, then it not affected by the vulnerability.

IBM BigFix was formerly known as Tivoli Endpoint Manager, IBM Endpoint
Manager, and IBM BigFix Endpoint Manager.");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21993206");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM BigFix Platform version 9.5.3 or later. Alternatively,
as a workaround, ensure that Web Reports is installed remotely on a
distinct and isolated machine that can be locked down (i.e., isolated
from the root server and other BigFix components).");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0396");

  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:"2016/11/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/18");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:bigfix_platform");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:bigfix_webreports");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ibm_bigfix_webreports_detect.nbin");
  script_require_keys("installed_sw/IBM BigFix Web Reports", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80, 8080);

  exit(0);
}

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

# Web Reports is vulnerable only when installed with
# other BigFix component(s)
if (report_paranoia < 2) audit(AUDIT_PARANOID);

appname = "IBM BigFix Web Reports";
port = get_http_port(default:8080);

install = get_install_from_kb(
  appname : appname,
  port    : port,
  exit_on_fail : TRUE
);

dir = install["dir"];
install_url = build_url(port:port, qs:dir);

version = install["ver"];
if (version == UNKNOWN_VER) 
  audit(AUDIT_UNKNOWN_WEB_APP_VER, appname, install_url);

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

if(max_index(ver) < 3) 
  audit(AUDIT_VER_NOT_GRANULAR, appname, port, version);

# 9.0, 9.1, 9.2 all vuln
# 9.5: fixed in 9.5.3.x  
# assume version < 9.x not vulnerable as they are not listed
# in the advisory
if (
    ver[0] == 9 &&
    ((ver[1] == 0 || ver[1] == 1 || ver[1] == 2)  
     || (ver[1] == 5 && ver[2] < 3 )
    )
)
{
  report =
    '\n  URL               : ' + install_url +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : 9.5.3.x\n';

  security_report_v4(port:port, extra:report, severity:SECURITY_WARNING);
}
else 
{
  audit(AUDIT_WEB_APP_NOT_AFFECTED, appname, install_url, version);
}