Vulnerabilities > CVE-2012-2486 - Code Injection vulnerability in Cisco products

047910
CVSS 8.3 - HIGH
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
low complexity
cisco
CWE-94
nessus
NVD
Published: 2012-07-12
Updated: 2018-10-30

Summary

The Cisco Discovery Protocol (CDP) implementation on Cisco TelePresence Multipoint Switch before 1.9.0, Cisco TelePresence Immersive Endpoint Devices before 1.9.1, Cisco TelePresence Manager before 1.9.0, and Cisco TelePresence Recording Server before 1.8.1 allows remote attackers to execute arbitrary code by leveraging certain adjacency and sending a malformed CDP packet, aka Bug IDs CSCtz40953, CSCtz40947, CSCtz40965, and CSCtz40953.

Vulnerable Configurations

Part Description Count
Application
Cisco
107
Hardware
Cisco
12

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Manipulating User-Controlled Variables
    This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.

Nessus

NASL familyCISCO
NASL idCISCO-SA-20120711-CTMS.NASL
descriptionAccording to its self-reported version, the version of Cisco TelePresence Multipoint Switch Server installed on the remote host is potentially affected by multiple vulnerabilities : - By sending specially crafted IP packets at a high rate, it may be possible to crash some of the services running on the host. (CVE-2012-3073) - The Cisco Discovery Protocol (CDP) implementation on the remote host is affected by a vulnerability that could allow a remote, unauthenticated, adjacent attacker with data link layer access the ability to execute arbitrary code by sending specially crafted CDP packets. (CVE-2012-2486)
last seen2020-06-01
modified2020-06-02
plugin id70024
published2013-09-20
reporterThis script is Copyright (C) 2013-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/70024
titleCisco TelePresence Multipoint Switch Multiple Vulnerabilities (cisco-sa-20120711-ctms)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(70024);
  script_version("1.4");
  script_cvs_date("Date: 2018/11/15 20:50:20");

  script_cve_id("CVE-2012-2486", "CVE-2012-3073");
  script_bugtraq_id(54382);
  script_xref(name:"CISCO-SA", value:"cisco-sa-20120711-ctms");
  script_xref(name:"IAVB", value:"2012-B-0070");

  script_name(english:"Cisco TelePresence Multipoint Switch Multiple Vulnerabilities (cisco-sa-20120711-ctms)");
  script_summary(english:"Checks CTMS version");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote host is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description",
    value:
"According to its self-reported version, the version of Cisco
TelePresence Multipoint Switch Server installed on the remote host is
potentially affected by multiple vulnerabilities :

  - By sending specially crafted IP packets at a high rate,
    it may be possible to crash some of the services running
    on the host. (CVE-2012-3073)

  - The Cisco Discovery Protocol (CDP) implementation on the
    remote host is affected by a vulnerability that could
    allow a remote, unauthenticated, adjacent attacker with
    data link layer access the ability to execute arbitrary
    code by sending specially crafted CDP packets.
    (CVE-2012-2486)"
  );
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctms
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7422b51c");
  script_set_attribute(
    attribute:"solution",
    value:"Upgrade to Cisco TelePresence Multipoint Switch 1.9.0 or later."
  );
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  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:"2012/07/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/05/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:telepresence_multipoint_switch_software");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/UCOS/Cisco TelePresence Multipoint Switch/version");

  exit(0);
}

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

display_version = get_kb_item_or_exit('Host/UCOS/Cisco TelePresence Multipoint Switch/version');
match = eregmatch(string:display_version, pattern:'^([0-9.]+)');
if (isnull(match)) # this should not happen
  audit(AUDIT_FN_FAIL, 'eregmatch');
else
  version = match[1];

# versions prior to 1.9.0 are vulnerable
if (ver_compare(ver:version, fix:'1.9', strict:FALSE) == -1)
  fix = '1.9.0';
else
  audit(AUDIT_INST_VER_NOT_VULN, 'Cisco TelePresence Multipoint Switch', display_version);

if (report_verbosity > 0)
{
  report =
    '\n  Installed version : ' + display_version +
    '\n  Fixed version     : ' + fix + '\n';
  security_hole(port:0, extra:report);
}
else security_hole(0);

References