Security Bulletin: Multiple security vulnerabilities addressed in IBM Sterling External Authentication Server (CVE-2013-0514, CVE-2013-0517)

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Abstract

IBM Sterling External Authentication Server is vulnerable to code execution and information disclosure attacks.

Content

VULNERABILITY DETAILS

CVE ID: CVE-2013-0517

DESCRIPTION: OS Command Execution via Command Line Adapter

Application allows the administrator to configure an OS command to be run as part of the authentication process. A malicious internal user who has access to the application and who has administration privileges could configure the system to issue arbitrary Operating System commands, which could affect the confidentiality, integrity and availability of the system.

CVSS:
CVSS Base Score: 6.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/82502 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:M/Au:S/C:C/I:C/A:C)


CVE ID: CVE-2013-0514

DESCRIPTION: Error message information leak

During error conditions, IBM Sterling External Authentication Server may allow a malicious internal user to obtain product information which could be used to design further attacks.

CVSS:
CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/82411 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)


AFFECTED PRODUCTS:

IBM Sterling External Authentication Server 2.4.1
IBM Sterling External Authentication Server 2.4.0
Sterling External Authentication Server 2.3.01
Sterling External Authentication Server 2.2.0

REMEDIATION:

VENDOR FIXES:
Sterling External Authentication Server 2.4.1: Apply Fix Pack 2.4.1.2 Interim Fix 2 or higher
Sterling External Authentication Server 2.4.0: Apply 2.4.0.4 Interim Fix 1 or Fix Pack 2.4.1.2 Interim Fix 2 or higher
Sterling External Authentication Server 2.3.01: Apply 2.3.01.11 Interim Fix 1 or Fix Pack 2.4.1.2 Interim Fix 2 or higher
Sterling External Authentication Server 2.2.0: No fix available. Product goes off support 6/30/2013. Customers with releases prior to SEAS 2.3.01 should upgrade to the fix levels described above for 2.3.01.

WORKAROUND(S):
None. Apply Fixes.

MITIGATION(S):
None known.

ADDITIONAL INFORMATION:

The fixes listed for IBM Sterling External Authentication Server listed above also contains fixes for the following previously reported and fixed vulnerabilities.

    Title
CVE ID Link
Jetty hashtable denial of service CVE-2011-4461 http://www.ibm.com/support/docview.wss?uid=swg21611913

REFERENCES:
Complete CVSS Guide
On-line Calculator V2
CVE-2013-0514
X-Force Vulnerability 82411
CVE-2013-0517
X-Force Vulnerability 82502

RELATED INFORMATION:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog


CHANGE HISTORY
3 May 2013 Original Copy Published
20 June 2013 2.3.01.11 Interim Fix 1 is now available. Security Bulletin complete.

*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 Flash.


Note: 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.

Cross reference information
Segment Product Component Platform Version Edition
Commerce Sterling Connect:Direct External Authentication Server AIX, HP-UX, Linux, Solaris, Windows All
Commerce Sterling Connect:Enterprise External Authentication Server AIX, HP-UX, Linux, Solaris All

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Document information


More support for:

Sterling Secure Proxy
External Authentication Server

Software version:

All

Operating system(s):

All

Reference #:

1636380

Modified date:

2013-06-21

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