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Security Bulletin: IBM InfoSphere Information Server has a network layer security vulnerability

Security Bulletin


Summary

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.

Vulnerability Details

CVEID: CVE-2017-1467
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

The following products, running on all supported platforms, are affected:
IBM InfoSphere Information Server: versions 9.1, 11.3, 11.5 and 11.7
IBM InfoSphere Information Server on Cloud: version 11.5

Remediation/Fixes

None

Workarounds and Mitigations

Mitigation Steps:

• Maintain strict and audited access controls to the DataStage client machines.
For guidance on credential mapping:
https://www.ibm.com/support/knowledgecenter/en/SSZJPZ_11.5.0/com.ibm.swg.im.iis.found.admin.common.doc/topics/admsec_engine_security_and_credential_mapping.html
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

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

This vulnerability was reported to IBM by Goh Zhi Hao, Mohammad Shah Bin Mohammad Esa, Samandeep Singh (Office Singapore) of SEC Consult Vulnerability Lab.

Change History

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.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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Document Information

Modified date:
12 April 2021

UID

swg22006063

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