Exploit the possiblities

Cisco Security Advisory 20170317-cmp

Cisco Security Advisory 20170317-cmp
Posted Mar 17, 2017
Authored by Cisco Systems | Site cisco.com

Cisco Security Advisory - A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors: The failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device, and The incorrect processing of malformed CMP-specific Telnet options. An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device. Cisco will release software updates that address this vulnerability. There are no workarounds that address this vulnerability.

tags | advisory, remote, arbitrary, local, protocol
systems | cisco, osx
advisories | CVE-2017-3881
MD5 | e95dfb301f191a5ec25fd4391f2377a8

Cisco Security Advisory 20170317-cmp

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Cisco Security Advisory: Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution Vulnerability

Advisory ID: cisco-sa-20170317-cmp

Revision: 1.0

For Public Release: 2017 March 17 16:00 GMT

Last Updated: 2017 March 17 16:00 GMT

CVE ID(s): CVE-2017-3881

CVSS Score v(3): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

+---------------------------------------------------------------------

Summary
=======
A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges.

The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors:

The failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device, and
The incorrect processing of malformed CMP-specific Telnet options.
An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device.

Cisco will release software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170317-cmp ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170317-cmp"]

-----BEGIN PGP SIGNATURE-----
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=Ql/1
-----END PGP SIGNATURE-----

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

December 2017

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    15 Files
  • 2
    Dec 2nd
    2 Files
  • 3
    Dec 3rd
    1 Files
  • 4
    Dec 4th
    15 Files
  • 5
    Dec 5th
    15 Files
  • 6
    Dec 6th
    18 Files
  • 7
    Dec 7th
    17 Files
  • 8
    Dec 8th
    15 Files
  • 9
    Dec 9th
    13 Files
  • 10
    Dec 10th
    4 Files
  • 11
    Dec 11th
    41 Files
  • 12
    Dec 12th
    42 Files
  • 13
    Dec 13th
    0 Files
  • 14
    Dec 14th
    0 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2016 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close