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Category:   Application (Generic)  >   VMware vCenter Vendors:   VMware
(VMware Issues Fix for VMware vCenter) GNU bash Environment Variable Processing Flaws Let Users Execute Arbitrary Code
SecurityTracker Alert ID:  1030943
SecurityTracker URL:  http://securitytracker.com/id/1030943
CVE Reference:   CVE-2014-6271, CVE-2014-6277, CVE-2014-6278, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187   (Links to External Site)
Updated:  Oct 14 2014
Original Entry Date:  Oct 1 2014
Impact:   Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   Several vulnerabilities were reported in GNU bash. A user can execute arbitrary code on the target system. VMware vCenter is affected.

The software does not properly process environment variables.

A user can supply a specially crafted value that includes a bash function followed by additional code that, when processed by bash, will execute the additional code [CVE-2014-6271]. This vulnerability is known as "Shellshock".

Stephane Chazelas reported this vulnerability.

An initial fix for CVE-2014-6271 did not properly fix this flaw [CVE-2014-7169].

A user can supply a specially crafted value to trigger an out-of-bounds memory access in redir_stack() and potentially execute arbitrary code [CVE-2014-7186].

Florian Weimer of Red Hat Product Security reported this vulnerability.

A user can supply specially crafted, deeply nested flow control constructs to trigger an off-by-one error and potentially execute arbitrary code [CVE-2014-7187].

Florian Weimer of Red Hat Product Security reported this vulnerability.

A user can supply specially crafted data to access uninitialized memory and overwrite a pointer to potentially execute arbitrary code [CVE-2014-6277].

A user can supply specially crafted data to execute arbitrary code [CVE-2014-6278].

Michal Zalewski reported these vulnerabilities.

On a system with an application that passes data from a remote or remote authenticated user to bash, a remote or remote authenticated user may be able to exploit these vulnerabilities to execute arbitrary code.

Some common system application configurations are affected.

Demonstration exploit code is available.

This vulnerability is being actively exploited.

Impact:   A user can execute arbitrary code on the target system. In some application configurations, a remote user may be able to exploit this.
Solution:   VMware has issued an advisory for VMware vCenter.

The following fixes are available:

vCenter Converter Standalone: 5.1.2, 5.5.3
vCenter Hyperic Server: 5.0.2 SP1, 5.0.5, 5.7.1 SP1, 5.7.2, 5.8.0 SP2, 5.8.1 SP3, 5.8.2 SP3, 5.8.3
vCenter Infrastructure Navigator: 2.0.1, 5.7.1, 5.8.3
vCenter Log Insight: 1.5.0U1, 2.0U1
vCenter Operations Manager 5.x: see advisory for patch
vCenter Orchestrator Appliance: see advisory for patch, 5.5.2.1
vCenter Server Appliance: 5.0 U3b, 5.1 U2b, 5.5 U2a
vCenter Site Recovery Manager: 5.1.2.2, 5.5.1.3
vCenter Support Assistant: see advisory for patch

The VMware advisory is available at:

http://www.vmware.com/security/advisories/VMSA-2014-0010.html

Cause:   Input validation error

Message History:   This archive entry is a follow-up to the message listed below.
Sep 24 2014 GNU bash Environment Variable Processing Flaws Let Users Execute Arbitrary Code



 Source Message Contents

Subject:  [Security-announce] NEW VMSA-2014-0010 - VMware product updates address critical Bash security vulnerabilities

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

VMware Security Advisory

Advisory ID: VMSA-2014-0010
Synopsis:    VMware product updates address critical Bash 
             security vulnerabilities
Issue date:  2014-09-30
Updated on:  2014-09-30 (Initial Advisory)
CVE numbers: CVE-2014-6271, CVE-2014-7169, CVE-2014-7186, 
             CVE-2014-7187
- ------------------------------------------------------------------------

1. Summary

   VMware product updates address Bash security vulnerabilities.

2. Relevant Releases (Affected products for which remediation is present)

    vCenter Log Insight 2.0

3. Problem Description 

   a. Bash update for multiple products.

      Bash libraries have been updated in multiple products to resolve 
      multiple critical security issues, also referred to as Shellshock.
  
      The Common Vulnerabilities and Exposures project (cve.mitre.org)
      has assigned the identifiers CVE-2014-6271, CVE-2014-7169, 
      CVE-2014-7186, and CVE-2014-7187 to these issues.

      VMware products have been grouped into the following four
      product categories:
      
      I) ESXi and ESX Hypervisor
      ESXi is not affected because ESXi uses the Ash shell (through
      busybox), which is not affected by the vulnerability reported
      for the Bash shell.
      ESX has an affected version of the Bash shell. See table 1 for
      remediation for ESX.
    
      II) Windows-based products
      Windows-based products, including all versions of vCenter Server 
      running on Windows, are not affected.

      III) VMware (virtual) appliances
      VMware (virtual) appliances ship with an affected version of Bash. 
      See table 2 for remediation for appliances.
      
      IV) Products that run on Linux, Android, OSX or iOS (excluding
virtual
      appliances)

      Products that run on Linux, Android, OSX or iOS (excluding 
      virtual appliances) might use the Bash shell that is part of the
      operating system. If the operating system has a vulnerable
      version of Bash, the Bash security vulnerability might be
      exploited through the product. VMware recommends that customers
      contact their operating system vendor for a patch.    
      
      MITIGATIONS

      VMware encourages restricting access to appliances through
      firewall rules and other network layer controls to only trusted IP
      addresses. This measure will greatly reduce any risk to these
      appliances.

      RECOMMENDATIONS

      VMware recommends customers evaluate and deploy patches for
      affected products in Table 1 and 2 below as these
      patches become available. 

      Column 4 of the following tables lists the action required to
      remediate the vulnerability in each release, if a solution is
      available.

      Table 1 - ESXi and ESX Hypervisor
      =================================

      VMware           Product    Running  Replace with/
      Product          Version    on       Apply Patch 
      ==============   =======    =======  =============
      ESXi             any        ESXi     Not affected

      ESX              4.1        ESX      Patch pending *

      ESX              4.0        ESX      Patch pending *

      * VMware will make VMware ESX 4.0 and 4.1 security patches available 
      for the Bash shell vulnerability. This security patch release is an 
      exception to the existing VMware lifecycle policy.  

      Table 2 - Products that are shipped as a (virtual) appliance. 
      =============================================================

      VMware                             Product    Running  Replace with/
      Product                            Version    on       Apply Patch 
      ==============                     =======    =======  =============
      
      vCenter Server Appliance           5.x        Linux    Patch Pending
      Horizon DaaS Platform              6.x        Linux    Patch Pending
      Horizon Workspace                  1.x, 2.x   Linux    Patch Pending
      IT Business Management Suite       1.x        Linux    Patch Pending
      NSX for Multi-Hypervisor           4.x        Linux    Patch Pending
      NSX for vSphere                    6.x        Linux    Patch Pending
      NVP                                3.x        Linux    Patch Pending
      vCenter Converter Standalone       5.x        Linux    Patch Pending 
      vCenter Hyperic Server             5.x        Linux    Patch Pending
      vCenter Infrastructure Navigator   5.x        Linux    Patch Pending
      vCenter Log Insight                1.x, 2.x   Linux    2.0 U1
      vCenter Operations Manager         5.x        Linux    Patch Pending
      vCenter Orchestrator Appliance     4.x, 5.x   Linux    Patch Pending
      vCenter Site Recovery Manager      5.x        Linux    Patch Pending
**
      vCenter Support Assistant          5.x        Linux    Patch Pending
      vCloud Automation Center           6.x        Linux    Patch Pending
      vCloud Automation Center
      Application Services               6.x        Linux    Patch Pending
      vCloud Director Appliance          5.x        Linux    Patch Pending
      vCloud Connector                   2.x        Linux    Patch Pending
      vCloud Networking and Security     5.x        Linux    Patch Pending
      vCloud Usage Meter                 3.x        Linux    Patch Pending
      vFabric Application Director       5.x, 6.x   Linux    Patch Pending
      vFabric Postgres                   9.x        Linux    Patch Pending
      Viewplanner                        3.x        Linux    Patch Pending
      VMware Application Dependency 
      Planner                            x.x        Linux    Patch Pending
      VMware Data Recovery               2.x        Linux    Patch Pending
      VMware HealthAnalyzer              5.x        Linux    Patch Pending
      VMware Mirage Gateway              5.x        Linux    Patch Pending
      VMware Socialcast On Premise       x.x        Linux    Patch Pending
      VMware Studio                      2.x        Linux    Patch Pending
      VMware TAM Data Manager            x.x        Linux    Patch Pending
      VMware Workbench                   3.x        Linux    Patch Pending
      vSphere App HA                     1.x        Linux    Patch Pending
      vSphere Big Data Extensions        1.x, 2.x   Linux    Patch Pending
      vSphere Data Protection            5.x        Linux    Patch Pending
      vSphere Management Assistant       5.x        Linux    Patch Pending
      vSphere Replication                5.x        Linux    Patch Pending
      vSphere Storage Appliance          5.x        Linux    Patch Pending

     ** This product includes Virtual Appliances that will be updated, the
product 
     itself is not a Virtual Appliance.

   4. Solution

   vCenter Log Insight
   ----------------------------
   Downloads:
   https://www.vmware.com/go/download-vcenter-log-insight
   (click Go to Downloads)
   Documentation:
   http://kb.vmware.com/kb/2091065

5. References
   
   VMware Knowledge Base Article 2090740
   http://kb.vmware.com/kb/2090740

   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6271        , 
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7169
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7186
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7187

- ------------------------------------------------------------------------

6. Change Log

   2014-09-30 VMSA-2014-0010
   Initial security advisory in conjunction with the release of
   vCenter Log Insight 2.0 U1 on 2014-09-30.

- ------------------------------------------------------------------------

 
7. Contact

   E-mail list for product security notifications and announcements:
   http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce

   This Security Advisory is posted to the following lists:

    security-announce at lists.vmware.com
    bugtraq at securityfocus.com
    fulldisclosure at seclists.org

   E-mail: security at vmware.com
   PGP key at: http://kb.vmware.com/kb/1055

   VMware Security Advisories
   http://www.vmware.com/security/advisories

   VMware Security Response Policy
   https://www.vmware.com/support/policies/security_response.html

   VMware Lifecycle Policy
   https://www.vmware.com/support/policies/lifecycle.html
 
   Twitter
   https://twitter.com/VMwareSRC

   Copyright 2014 VMware Inc.  All rights reserved.

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_______________________________________________
Security-announce mailing list
Security-announce@lists.vmware.com
http://lists.vmware.com/mailman/listinfo/security-announce
 
 


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