A network layer security vulnerability in InfoSphere Information Server can lead to privilege escalation or unauthorized access.
An unauthorized user could intercept and view communication between client and server. They could also modify or replay certain DataStage commands to get unauthenticated access to the server.
DESCRIPTION: A network layer security vulnerability in InfoSphere Information Server can lead to privilege escalation or unauthorized access.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/128466 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
IBM InfoSphere Information Server: versions 9.1, 11.3, 11.5 and 11.7
IBM InfoSphere Information Server on Cloud: version 11.5
Workarounds and Mitigations
• Maintain strict and audited access controls to the DataStage client machines.
For guidance on credential mapping:
For a detailed description of Roles, Groups and tasks that can be done:
https://www.ibm.com/developerworks/community/files/basic/anonymous/api/library/0e088c99-9f24-4c5c-a79a-a65ab8323565/document/499cdb07-a12e-43d3-9314-e36e24c148de/media/Administrator Pg. 16-Pg 19
• Limit communication between DataStage Windows Client and Server to be via trusted networks (VPN, Firewall, Private Networks) only
• Monitor access from DataStage Windows Client to DataStage Server
• DataStage Client and Server requires a single port to be opened (default 31538) for communication. Limit opening any other ports between client and server as documented: https://www.ibm.com/support/knowledgecenter/en/SSZJPZ_11.5.0/com.ibm.swg.im.iis.productization.iisinfsv.install.doc/topics/wsisinst_pln_networks.html
Get Notified about Future Security Bulletins
This vulnerability was reported to IBM by Goh Zhi Hao, Mohammad Shah Bin Mohammad Esa, Samandeep Singh (Office Singapore) of SEC Consult Vulnerability Lab.
30 July 2017: Original version published
31 July 2017: republished with no changes
23 April 2018: Added release 11.7
12 April 2021: Updated Summary to further clarify scenarios where this issue is applicable
*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.
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.
12 April 2021