what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Cisco Unified Communications Manager Command Execution

Cisco Unified Communications Manager Command Execution
Posted Aug 13, 2015
Authored by Bernhard Mueller

Cisco Unified Communications Manager versions prior to 11.0.1, 10.5.2, and 9.2 suffer from multiple command execution vulnerabilities.

tags | exploit, vulnerability, file inclusion
systems | cisco
advisories | CVE-2014-6271
SHA-256 | 2657de5609ab33edc3daabf9e0594e967f1578315006fc819d72a4d7f3cd226d

Cisco Unified Communications Manager Command Execution

Change Mirror Download
Vantage Point Security Advisory 2015-001
========================================

Title: Cisco Unified Communications Manager Multiple Vulnerabilities
Vendor: Cisco
Vendor URL: http://www.cisco.com/
Versions affected: <9.2, <10.5.2, <11.0.1.
Severity: Low to medium
Vendor notified: Yes
Reported: Oct. 2014
Public release: Aug. 13th, 2015
Author: Bernhard Mueller <bernhard[at]vantagepoint[dot]sg>

Summary:
--------

Cisco Unified Communications Manager (CUCM) offers services such as session
management, voice, video, messaging, mobility, and web conferencing.

During the last year, Vantage Point Security has reported four security
issues to Cisco as listed below.


1. Shellshock command injection
--------------------------------

Authenticated users of CUCM can access limited functionality via the web
interface and Cisco console (SSH on port 22). Because the SSH server is
configured to process several environment variables from the client and a
vulnerable version of bash is used, it is possible to exploit command
injection via specially crafted environment variables (CVE-2014-6271 a.k.a.
shellshock). This allows an attacker to spawn a shell running as the user
"admin".


Several environment variables can be used to exploit the issue. Example:


$ LC_PAPER="() { x;};/bin/sh" ssh Administrator@examplecucm.com


2. Local File Inclusion
-----------------------

The application allows users to view the contents of any locally accessible
files on the web server through a vulnerability known as LFI (Local File
Inclusion). LFI vulnerabilities are commonly used to download application
source code, configuration files and files containing sensitive information
such as passwords. Exploiting this issue requires a valid user account.


https://cucm.example.com/:8443/reporter-servlet/GetFileContent?Location=/&FileName=/usr/local/thirdparty/jakarta-tomcat/conf/tomcat-users.xml


3. Unauthenticated access to ping command
-----------------------------------------

The pingExecute servlet allows unauthenticated users to execute pings to
arbitrary IP addresses. This could be used by an attacker to enumerate the
internal network. The following URL triggers a ping of the host 10.0.0.1:

https://cucm.example.com:8443/cmplatform/pingExecute?hostname=10.0.0.1&interval=1.0&packetsize=12&count=1000&secure=false


4. Magic session ID allows unauthenticated access to SOAP calls
---------------------------------------------------------------

Authentication for some methods in the EPAS SOAP interface can be bypassed
by using a hardcoded session ID. The methods "GetUserLoginInfoHandler" and
"GetLoggedinXMPPUserHandler" are affected.


Fix Information:
----------------

Upgrade to CUCM version 9.2, 10.5.2 or 11.0.1.


References:
-----------

https://tools.cisco.com/quickview/bug/CSCus88031
https://tools.cisco.com/quickview/bug/CSCur49414
https://tools.cisco.com/quickview/bug/CSCum05290
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140926-bash
http://tools.cisco.com/security/center/viewAlert.x?alertId=37111


Timeline:
---------

2014/10: Issues reported to Cisco;
2015/07: Confirm that all issues have been fixed.


About Vantage Point Security:
--------------------

Vantage Point is the leading provider for penetration testing and security
advisory services in Singapore. Clients in the Financial, Banking and
Telecommunications industries select Vantage Point Security based on
technical competency and a proven track record to deliver significant and
measurable improvements in their security posture.

https://www.vantagepoint.sg/
office[at]vantagepoint[dot]sg


Login or Register to add favorites

File Archive:

March 2024

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close