Vulnerabilities > CVE-2017-12420 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Netapp Clustered Data Ontap

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
netapp
CWE-119
nessus

Summary

Heap-based buffer overflow in the SMB implementation in NetApp Clustered Data ONTAP before 8.3.2P8 and 9.0 before P2 allows remote authenticated users to cause a denial of service or execute arbitrary code.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyMisc.
NASL idNETAPP_ONTAP_NTAP-20170814-0001.NASL
descriptionThe version of NetApp Clustered Data ONTAP running on the remote host is 8.x prior to 8.3.2P8 or 9.x prior to 9.0P2. It is, therefore, affected by a heap overflow vulnerability in the SMB implementation that allows a remote unauthenticated attacker to cause a denial of service disruption or execute arbitrary code. ONTAP 9.1 and higher are unaffected. Note that Nessus has not tested for these issues but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id103872
published2017-10-17
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/103872
titleNetApp Clustered Data ONTAP 8.x < 8.3.2P8 / 9.x < 9.0P2 (NTAP-20170814-0001)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(103872);
  script_version("1.5");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id("CVE-2017-12420");

  script_name(english:"NetApp Clustered Data ONTAP 8.x < 8.3.2P8 / 9.x < 9.0P2 (NTAP-20170814-0001)");
  script_summary(english:"Checks the version of ONTAP.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a heap overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of NetApp Clustered Data ONTAP running on the remote
host is 8.x prior to 8.3.2P8 or 9.x prior to 9.0P2. It is, therefore,
affected by a heap overflow vulnerability in the SMB implementation
that allows a remote unauthenticated attacker to cause a denial of
service disruption or execute arbitrary code. ONTAP 9.1 and higher
are unaffected.

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  # https://kb.netapp.com/support/s/article/NTAP-20170814-0001?language=en_US
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cd1ecbf8");
  script_set_attribute(attribute:"solution", value:
"Upgrade to NetApp ONTAP version 8.3.2P8 / 9.0P2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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: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-2017-12420");

  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:"2017/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:netapp:data_ontap");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("netapp_ontap_detect.nbin");
  script_require_keys("Host/NetApp/ONTAP/display_version", "Host/NetApp/ONTAP/version", "Host/NetApp/ONTAP/mode", "Host/NetApp/ONTAP/cluster");

  exit(0);
}

include("vcf.inc");

app_name = "NetApp ONTAP";

cluster = get_kb_item_or_exit("Host/NetApp/ONTAP/cluster");

# Not vulnerable if not running in Clustered mode
if (!cluster)
  audit(AUDIT_OS_CONF_NOT_VULN, app_name);

app_info = vcf::get_app_info(app:app_name, kb_ver:"Host/NetApp/ONTAP/display_version");

vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { "min_version" : "8.0",  "fixed_version" : "8.3.2P8" },
  { "min_version" : "9.0",  "fixed_version" : "9.0P2" }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);