Vulnerabilities > CVE-2018-1212 - Command Injection vulnerability in Dell Idrac6 Modular and Idrac6 Monolithic

047910
CVSS 8.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
dell
CWE-77
nessus
NVD
Published: 2018-07-02
Updated: 2019-10-09

Summary

The web-based diagnostics console in Dell EMC iDRAC6 (Monolithic versions prior to 2.91 and Modular all versions) contains a command injection vulnerability. A remote authenticated malicious iDRAC user with access to the diagnostics console could potentially exploit this vulnerability to execute arbitrary commands as root on the affected iDRAC system.

Vulnerable Configurations

Part Description Count
Application
Dell
6

Common Weakness Enumeration (CWE)

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 familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_A633651BB30911E9A87FA4BADB2F4699.NASL
    descriptionOn some Intel processors utilizing speculative execution a local process may be able to infer stale information from microarchitectural buffers to obtain a memory disclosure. Impact : An attacker may be able to read secret data from the kernel or from a process when executing untrusted code (for example, in a web browser).
    last seen2020-06-01
    modified2020-06-02
    plugin id127550
    published2019-08-12
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/127550
    titleFreeBSD : FreeBSD -- Microarchitectural Data Sampling (MDS) (a633651b-b309-11e9-a87f-a4badb2f4699)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2020 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(127550);
  script_version("1.3");
  script_cvs_date("Date: 2020/01/06");

  script_cve_id("CVE-2018-1212", "CVE-2018-1213", "CVE-2019-1109");
  script_xref(name:"FreeBSD", value:"SA-19:07.mds");

  script_name(english:"FreeBSD : FreeBSD -- Microarchitectural Data Sampling (MDS) (a633651b-b309-11e9-a87f-a4badb2f4699)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"On some Intel processors utilizing speculative execution a local
process may be able to infer stale information from microarchitectural
buffers to obtain a memory disclosure. Impact : An attacker may be
able to read secret data from the kernel or from a process when
executing untrusted code (for example, in a web browser)."
  );
  # https://vuxml.freebsd.org/freebsd/a633651b-b309-11e9-a87f-a4badb2f4699.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4fd5a3d9"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-1212");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:FreeBSD");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info", "Settings/ParanoidReport");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


if (report_paranoia < 2) audit(AUDIT_PARANOID);

flag = 0;

if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=12.0<12.0_5")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=11.2<11.2_10")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyCGI abuses
    NASL idDRAC_2018_06_26.NASL
    descriptionThe remote host is running iDRAC6 with a firmware version prior to 2.91, iDRAC7 or iDRAC8 with a firmware version prior to 2.60.60.60, or iDRAC9 with a firmware version prior to 3.21.21.21 and is therefore affected by multiple vulnerabilities.
    last seen2020-05-21
    modified2018-08-09
    plugin id111604
    published2018-08-09
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/111604
    titleDell iDRAC Products Multiple Vulnerabilities (June 2018)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(111604);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/20");

  script_cve_id(
    "CVE-2018-1212",
    "CVE-2018-1243",
    "CVE-2018-1244",
    "CVE-2018-1249"
  );
  script_bugtraq_id(104964, 104965);

  script_name(english:"Dell iDRAC Products Multiple Vulnerabilities (June 2018)");
  script_summary(english:"Checks the iDRAC version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running iDRAC6 with a firmware version prior to
2.91, iDRAC7 or iDRAC8 with a firmware version prior to 2.60.60.60, or
iDRAC9 with a firmware version prior to 3.21.21.21 and is therefore
affected by multiple vulnerabilities.");
  # http://en.community.dell.com/techcenter/extras/m/white_papers/20487494
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6055fe8d");
  script_set_attribute(attribute:"solution", value:
"Update the remote host to iDRAC 6 firmware 2.91, iDRAC7/iDRAC8
firmware 2.60.60.60, or iDRAC9 firmware 3.21.21.21 or higher.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/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-2018-1244");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/09");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:dell:remote_access_card");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:dell:idrac6");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:dell:idrac7");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:dell:idrac8");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:dell:idrac9");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("drac_detect.nasl");
  script_require_keys("installed_sw/iDRAC");
  script_require_ports("Services/www", 443);

  exit(0);
}

include("vcf.inc");
include("vcf_extras.inc");
include("http.inc");

port = get_http_port(default:443, embedded:TRUE);

app_info = vcf::idrac::get_app_info(port:port);

constraints = [
  {"idrac":"6", "min_version":"1.0", "fixed_version":"2.91"},
  {"idrac":"7", "min_version":"1.0", "fixed_version":"2.60.60.60"},
  {"idrac":"8", "min_version":"1.0", "fixed_version":"2.60.60.60"},
  {"idrac":"9", "min_version":"1.0", "fixed_version":"3.21.21.21"}
];

vcf::idrac::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);

References