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ESB-2014.1466 - [Linux] IBM PowerVC Standard Edition: Multiple vulnerabilities

Date: 28 August 2014
References: ESB-2014.0981  

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1466
      A number of vulnerabilities have been identified in IBM PowerVC
                              28 August 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM PowerVC Standard Edition
Publisher:         IBM
Operating System:  Linux variants
Impact/Access:     Increased Privileges     -- Existing Account
                   Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3093 CVE-2014-0907 

Reference:         ESB-2014.0981

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=nas8N1020242
   http://www-01.ibm.com/support/docview.wss?uid=nas8N1020243

Comment: This bulletin contains two (2) IBM security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: IBM PowerVC - Clear text passwords and access tokens found
on the PowerVC management node (CVE-2014-3093)

Security Bulletin

Document information

More support for:

PowerVC Standard Edition

Software version:

1.2.0, 1.2.1

Operating system(s):

Linux

Reference #:

N1020242

Modified date:

2014-08-25

Summary

PowerVC is exposing clear text passwords and access tokens to local users via
log and configuration files, command line arguments, and diagnostic results.

Vulnerability Details

CVE ID:

CVE-2014-3093

DESCRIPTION:

A clear text password for the powervc-validator service account was found in 
the world-readable file /etc/validator/api-paste.ini

Enabling debug logging resulted in passwords and access tokens being logged in
clear text in multiple places.

Installation, environment checks, and the powervc-ldap-config and 
powervc-restore CLI commands expose clear text passwords on the command line,
allowing them to be seen in the process table.

The powervc-diag CLI command prints the access token that it uses to collect 
its results and logs that token as well as other tokens.

CVSS:

CVSS Base Score: 2.1

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/94259 for the 
current score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)

Affected Products and Versions

PowerVC Express Edition 1.2.0.0 through 1.2.0.2

PowerVC Express Edition 1.2.1.0 through 1.2.1.1

PowerVC Standard Edition 1.2.0.0 through 1.2.0.2

PowerVC Standard Edition 1.2.1.0 through 1.2.1.1

Remediation/Fixes

The recommended solution is to apply the fix as soon as practical. Install 
PowerVC 1.2.0 FixPack3 or PowerVC 1.2.1 FixPack2. The fixpacks are available 
on IBM Fix Central.

Workarounds and Mitigations

File permissions for /etc/validator/api-paste.ini may be changed to restrict 
access by running the following commands:

/bin/chown root:powervc-validator /etc/validator/api-paste.ini

/bin/chmod 640 /etc/validator/api-paste.ini

Do not enable debug logging on affected versions.

Wait 6 hours after running powervc-diag before sharing the results with an 
untrusted party. This allows enough time for any access tokens recorded in the
results to expire.

References

Complete CVSS Guide

On-line Calculator V2

CVE-2014-3093

http://xforce.iss.net/xforce/xfdb/94259

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

None

*The CVSS Environment Score is customer environment specific and will 
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the 
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the 
Common Vulnerability Scoring System (CVSS) is an "industry open standard 
designed to convey vulnerability severity and help to determine urgency and 
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY 
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT 
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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

Security Bulletin: IBM PowerVC Local escalation of privilege vulnerability in
IBM DB2 (CVE-2014-0907)

Security Bulletin

Document information

More support for:

PowerVC Standard Edition

Software version:

1.2.0, 1.2.1

Operating system(s):

Linux

Reference #:

N1020243

Modified date:

2014-08-25

Summary

A vulnerability in IBM DB2 could allow a local user to gain elevated 
privileges.

Vulnerability Details

CVE ID:

CVE-2014-0907

DESCRIPTION:

The versions of IBM DB2 included in the PowerVC products listed below contain
a security vulnerability which allows a malicious user to gain root privilege.
This vulnerability can only be exploited by users through a local system 
account login.

CVSS:

CVSS Base Score: 6.9

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/91869 for the 
current score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)

Affected Products and Versions

PowerVC Express Edition 1.2.0.0 through 1.2.0.2

PowerVC Express Edition 1.2.1.0 through 1.2.1.1

PowerVC Standard Edition 1.2.0.0 through 1.2.0.2

PowerVC Standard Edition 1.2.1.0 through 1.2.1.1

Remediation/Fixes

The recommended solution is to apply the fix as soon as practical. Install 
PowerVC 1.2.0 FixPack3 or PowerVC 1.2.1 FixPack2. The fixpacks are available 
on IBM Fix Central.

Workarounds and Mitigations

The following remediation instructions should remove the vulnerability without
side-effects. The user executing the commands must be root.

cd /home/pwrvcdb/sqllib

bin/db2chglibpath -s '\.:' -r '' adm/db2iclean

References

Complete CVSS Guide

On-line Calculator V2

CVE-2014-0907

X-Force Database Entry 91869

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

Tim Brown from Portcullis Computer Security Ltd.

Change History

First version published 08/25/2014

*The CVSS Environment Score is customer environment specific and will 
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the 
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the 
Common Vulnerability Scoring System (CVSS) is an "industry open standard 
designed to convey vulnerability severity and help to determine urgency and 
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY 
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT 
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

- --------------------------END INCLUDED TEXT--------------------

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===========================================================================
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