Vulnerabilities > CVE-2016-1340 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco Unified Computing System Platform Emulator 2.5(2)Ts4/3.0(2C)A/3.0(2C)Ts9

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
cisco
CWE-119
nessus

Summary

Heap-based buffer overflow in Cisco Unified Computing System (UCS) Platform Emulator 2.5(2)TS4, 3.0(2c)A, and 3.0(2c)TS9 allows local users to gain privileges via crafted libclimeta.so filename arguments, aka Bug ID CSCux68837.

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 familyCISCO
NASL idCISCO-SA-20160414-UCSPE.NASL
descriptionAccording to its self-reported version number, the Cisco Unified Computing System (UCS) Platform Emulator running on the remote host is prior to 3.1(1ePE1). It is, therefore, affected by the following vulnerabilities : - A command injection vulnerability exists due to improper validation of user-supplied input when handling ucspe-copy command-line arguments. A local attacker can exploit this, via crafted command line arguments, to execute arbitrary commands on the system. (CVE-2016-1339) - An overflow condition exists that is triggered due to improper validation of user-supplied input when handling libclimeta.so filename arguments. A local attacker can exploit this, via crafted filename arguments, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-1340) 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 id91960
published2016-07-06
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/91960
titleCisco UCS Platform Emulator < 3.1(1ePE1) Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(91960);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/19");

  script_cve_id("CVE-2016-1339", "CVE-2016-1340");
  script_xref(name:"TRA", value:"TRA-2016-08");
  script_xref(name:"CISCO-BUG-ID", value:"CSCux68832");
  script_xref(name:"CISCO-BUG-ID", value:"CSCux68837");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20160414-ucspe1");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20160414-ucspe2");

  script_name(english:"Cisco UCS Platform Emulator < 3.1(1ePE1) Multiple Vulnerabilities");
  script_summary(english:"Checks the version of Cisco UCS Platform Emulator.");

  script_set_attribute(attribute:"synopsis", value:
"The Cisco UCS Platform Emulator running on the remote host is affected
by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Cisco Unified
Computing System (UCS) Platform Emulator running on the remote host is
prior to 3.1(1ePE1). It is, therefore, affected by the following
vulnerabilities :

  - A command injection vulnerability exists due to improper
    validation of user-supplied input when handling
    ucspe-copy command-line arguments. A local attacker can
    exploit this, via crafted command line arguments, to
    execute arbitrary commands on the system.
    (CVE-2016-1339)

  - An overflow condition exists that is triggered due to
    improper validation of user-supplied input when handling
    libclimeta.so filename arguments. A local attacker can
    exploit this, via crafted filename arguments, to cause a
    denial of service condition or the execution of
    arbitrary code. (CVE-2016-1340)
    
Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160414-ucspe1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d6bfddf7");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160414-ucspe2
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5f46674a");
  script_set_attribute(attribute:"see_also", value:"https://www.tenable.com/security/research/tra-2016-08");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Cisco UCS Platform Emulator version 3.1(1ePE1) or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/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:L/AC:L/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-2016-1340");

  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:"2016/04/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/04/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/06");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:unified_computing_system_platform_emulator");
  script_end_attributes();

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

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

  script_dependencies("cisco_ucs_pe_webui_detect.nbin");
  script_require_keys("installed_sw/Cisco UCS Platform Emulator");
  script_require_ports("Services/www", 80, 443);

  exit(0);
}

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

app = "Cisco UCS Platform Emulator";
get_install_count(app_name:app, exit_if_zero:TRUE);

port = get_http_port(default:80);

install = get_single_install(
  app_name : app,
  port     : port,
  exit_if_unknown_ver : TRUE
);

dir     = install['path'];
version = install['version'];

install_url = build_url(port:port, qs:dir);

if (
  version =~ "^[0-2]\." ||
  version =~ "^3\.0\(" ||
  version =~ "^3\.1\([0-9][a-d]PE" ||
  version =~ "^3\.1\(1ePE0\)"
)
{
  report =
    '\n  URL               : ' + install_url +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : 3.1(1ePE1)' +
    '\n';
  security_report_v4(severity:SECURITY_HOLE, port:port, extra:report);
}
else
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_url, version);