Vulnerabilities > CVE-2017-6665 - Cleartext Transmission of Sensitive Information vulnerability in Cisco IOS and IOS XE

047910
CVSS 6.5 - MEDIUM
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
low complexity
cisco
CWE-319
nessus
NVD
Published: 2017-08-07
Updated: 2024-11-21

Summary

A vulnerability in the Autonomic Networking feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to reset the Autonomic Control Plane (ACP) of an affected system and view ACP packets that are transferred in clear text within an affected system, an Information Disclosure Vulnerability. More Information: CSCvd51214. Known Affected Releases: Denali-16.2.1 Denali-16.3.1.

Vulnerable Configurations

Part Description Count
OS
Cisco
187

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Session Sidejacking
    Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Harvesting Usernames or UserIDs via Application API Event Monitoring
    An attacker hosts an event within an application framework and then monitors the data exchanged during the course of the event for the purpose of harvesting any important data leaked during the transactions. One example could be harvesting lists of usernames or userIDs for the purpose of sending spam messages to those users. One example of this type of attack involves the attacker creating an event within the sub-application. Assume the attacker hosts a "virtual sale" of rare items. As other users enter the event, the attacker records via MITM proxy the user_ids and usernames of everyone who attends. The attacker would then be able to spam those users within the application using an automated script.
  • Signature Spoofing by Mixing Signed and Unsigned Content
    An attacker exploits the underlying complexity of a data structure that allows for both signed and unsigned content, to cause unsigned data to be processed as though it were signed data.
  • Passively Sniff and Capture Application Code Bound for Authorized Client
    Attackers can capture application code bound for the client and can use it, as-is or through reverse-engineering, to glean sensitive information or exploit the trust relationship between the client and server. Such code may belong to a dynamic update to the client, a patch being applied to a client component or any such interaction where the client is authorized to communicate with the server.

Nessus

  • NASL familyCISCO
    NASL idCISCO-SA-20170726-ANIACP-IOSXE.NASL
    descriptionAccording to its self-reported version, Cisco IOS XE Software is affected by an information disclosure vulnerability in the Autonomic Networking feature due to unknown reasons. An unauthenticated, adjacent attacker can exploit this by capturing and replaying Autonomic Control Plane (ACP) packets that are transferred within an affected system in order to reset the ACP of an affected system and cause the system to stop responding. An attacker can also view the ACP packets which should have been encrypted over the ACP, in clear text. Please see the included Cisco BIDs and Cisco Security Advisory for more information. Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-01
    modified2020-06-02
    plugin id131080
    published2019-11-18
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131080
    titleCisco IOS XE Software Autonomic Control Plane Channel Information Disclosure (cisco-sa-20170726-aniacp)
    code
    #TRUSTED 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
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(131080);
  script_version("1.4");
  script_cvs_date("Date: 2019/11/19");

  script_cve_id("CVE-2017-6665");
  script_bugtraq_id(99969);
  script_xref(name:"CISCO-BUG-ID", value:"CSCvd51214");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20170726-aniacp");

  script_name(english:"Cisco IOS XE Software Autonomic Control Plane Channel Information Disclosure (cisco-sa-20170726-aniacp)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, Cisco IOS XE Software is affected by an information disclosure vulnerability in
the Autonomic Networking feature due to unknown reasons. An unauthenticated, adjacent attacker can exploit this by
capturing and replaying Autonomic Control Plane (ACP) packets that are transferred within an affected system in order
to reset the ACP of an affected system and cause the system to stop responding. An attacker can also view the ACP
packets which should have been encrypted over the ACP, in clear text.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-aniacp
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f352f2d4");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd51214");
  script_set_attribute(attribute:"solution", value:
"No fixes are available. For more information, see Cisco bug ID(s) CSCvd51214.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-6665");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios_xe");
  script_end_attributes();

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

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

  script_dependencies("cisco_ios_xe_version.nasl");
  script_require_keys("Host/Cisco/IOS-XE/Version");

  exit(0);
}

include('cisco_workarounds.inc');
include('ccf.inc');

product_info = cisco::get_product_info(name:'Cisco IOS XE Software');

version_list = make_list(
  '3.10.4S',
  '3.10.1xcS',
  '3.10.8aS',
  '3.11.4S',
  '3.12.0S',
  '3.12.1S',
  '3.12.2S',
  '3.12.3S',
  '3.12.0aS',
  '3.12.4S',
  '3.13.0S',
  '3.13.1S',
  '3.13.2S',
  '3.13.3S',
  '3.13.4S',
  '3.13.5S',
  '3.13.2aS',
  '3.13.6S',
  '3.13.6aS',
  '3.13.7aS',
  '3.13.8S',
  '3.14.0S',
  '3.14.1S',
  '3.14.2S',
  '3.14.3S',
  '3.14.4S',
  '3.15.0S',
  '3.15.1S',
  '3.15.2S',
  '3.15.1xbS',
  '3.15.2xbS',
  '3.15.3S',
  '3.15.4S',
  '3.7.0E',
  '3.7.1E',
  '3.7.2E',
  '3.7.3E',
  '3.7.4E',
  '3.7.5E',
  '3.16.0S',
  '3.16.1S',
  '3.16.0aS',
  '3.16.1aS',
  '3.16.2S',
  '3.16.2aS',
  '3.16.0bS',
  '3.16.3S',
  '3.16.3aS',
  '3.16.4S',
  '3.16.4aS',
  '3.16.4bS',
  '3.16.5S',
  '3.16.4cS',
  '3.16.6S',
  '3.16.5aS',
  '3.16.5bS',
  '3.16.7S',
  '3.16.6bS',
  '3.16.7aS',
  '3.16.7bS',
  '3.16.8S',
  '3.16.9S',
  '3.16.10S',
  '3.17.0S',
  '3.17.1S',
  '3.17.2S',
  '3.17.3S',
  '3.17.4S',
  '16.1.2',
  '16.1.3',
  '16.2.1',
  '16.2.2',
  '3.8.0E',
  '3.8.1E',
  '3.8.2E',
  '3.8.3E',
  '16.3.1',
  '16.3.2',
  '16.3.3',
  '16.3.1a',
  '16.3.4',
  '16.3.5',
  '16.3.5b',
  '16.3.6',
  '16.3.7',
  '16.3.8',
  '16.3.9',
  '16.4.1',
  '16.4.2',
  '16.4.3',
  '16.5.1',
  '16.5.1a',
  '16.5.1b',
  '16.5.2',
  '16.5.3',
  '3.18.0S',
  '3.18.1S',
  '3.18.2S',
  '3.18.3S',
  '3.18.4S',
  '3.18.0SP',
  '3.18.1SP',
  '3.18.1gSP',
  '3.18.1bSP',
  '3.18.1cSP',
  '3.18.2SP',
  '3.18.1hSP',
  '3.18.1iSP',
  '3.18.3SP',
  '3.18.4SP',
  '3.18.3bSP',
  '3.18.5SP',
  '3.18.7SP',
  '3.18.8SP',
  '3.9.0E',
  '3.9.1E',
  '16.6.1',
  '16.6.2',
  '16.6.3',
  '16.6.4',
  '16.6.5',
  '16.6.4a',
  '16.6.5a',
  '16.6.6',
  '16.6.5b',
  '16.6.7',
  '16.6.7a',
  '16.7.1',
  '16.7.2',
  '16.7.3',
  '16.8.1',
  '16.8.1a',
  '16.8.1b',
  '16.8.1s',
  '16.8.1c',
  '16.8.2',
  '16.8.3',
  '16.9.1',
  '16.9.1a',
  '16.9.1s',
  '16.9.3',
  '16.9.2a',
  '16.9.2s',
  '16.9.3h',
  '16.9.4',
  '16.9.3s',
  '16.9.3a',
  '16.9.4c',
  '16.10.1',
  '16.10.1a',
  '16.10.1b',
  '16.10.1s',
  '16.10.1e',
  '16.10.2',
  '16.11.1',
  '16.11.1a',
  '16.11.1b',
  '16.11.2',
  '16.11.1s',
  '16.11.1c',
  '16.12.1',
  '16.12.1s',
  '16.12.1a',
  '16.12.1c',
  '16.12.2',
  '17.2.1'
);

workarounds = make_list(CISCO_WORKAROUNDS['autonomic_networking']);
workaround_params = make_list();

reporting = make_array(
  'port'     , 0,
  'severity' , SECURITY_NOTE,
  'version'  , product_info['version'],
  'bug_id'   , 'CSCvd51214',
  'cmds'     , make_list('show running-config')
);

cisco::check_and_report(
  product_info:product_info,
  reporting:reporting,
  vuln_versions:version_list,
  workarounds:workarounds,
  workaround_params:workaround_params
);
  • NASL familyCISCO
    NASL idCISCO-SA-20170726-ANIACP-IOS.NASL
    descriptionAccording to its self-reported version, Cisco IOS is affected by an information disclosure vulnerability in the Autonomic Networking feature due to unknown reasons. An unauthenticated, adjacent attacker can exploit this by capturing and replaying Autonomic Control Plane (ACP) packets that are transferred within an affected system in order to reset the ACP of an affected system and cause the system to stop responding. An attacker can also view the ACP packets which should have been encrypted over the ACP, in clear text. Please see the included Cisco BIDs and Cisco Security Advisory for more information. Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-01
    modified2020-06-02
    plugin id131079
    published2019-11-18
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/131079
    titleCisco IOS Autonomic Control Plane Channel Information Disclosure (cisco-sa-20170726-aniacp)

References