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Security Bulletin: Open redirect vulnerability in IBM Business Process Manager (CVE-2017-1159)

Security Bulletin


Summary

IBM Business Process Manager is vulnerable to open redirects, caused by improper validation of user-supplied input.

Vulnerability Details

CVEID: CVE-2017-1159
DESCRIPTION:
 IBM Business Process Manager could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122891 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

Affected Products and Versions

- IBM Business Process Manager V7.5.0.0 through V7.5.1.2

- IBM Business Process Manager V8.0.0.0 through V8.0.1.3

- IBM Business Process Manager V8.5.0.0 through V8.5.0.2

- IBM Business Process Manager V8.5.5.0

- IBM Business Process Manager V8.5.6.0 through V8.5.6.0 CF2

- IBM Business Process Manager V8.5.7.0 through V8.5.7.0 Cumulative Fix 2016.12


Note: A fix for IBM BPM V8.5.7 cumulative fix (CF) 2017.03 is available even though IBM BPM V8.5.7 CF 2017.03 is not vulnerable to this security issue. The intention of this interim fix is to prevent the following unnecessary warning message in IBM Installation Manager, which you see when you upgrade IBM BPM:

"One or more fixes will be uninstalled when IBM(R) Business Process Manager <Advanced | Standard | Express> is updated to 8.5.7. CF2017.03. The update does not address issues that were resolved previously by the maintenance packages. The problems might return if fixes for the the following issues are not reapplied or have new fixes applied to prevent the problems from returning.
- JR57478 in the package IBM(R) Business Process Manager <Advanced | Standard | Express> 8.5...
- JR57590 in the package IBM(R) Business Process Manager <Advanced | Standard | Express> 8.5..."

Remediation/Fixes

Interim fix JR57478 does not fix this vulnerability for releases 8.5.5 and later. Use interim fix JR58405 instead. If JR57478 is already installed, update it to interim fix JR58405.


The recommended solution is to apply the fixes as below:
As IBM Business Process Manager V7.5 is out of general support, customers with a support extension contract can contact IBM support to request the fix.

For IBM BPM V7.5.0.0 through V7.5.1.2:

For IBM BPM V8.0.0.0 through V8.0.1.3
For IBM BPM V8.5.0.0 through V8.5.0.2
For IBM BPM V8.5.5.0
For IBM BPM V8.5.6.0 through V8.5.6.0 CF2
For IBM BPM V8.5.7.0 through V8.5.7.0 CF 2016.12

Workarounds and Mitigations

None

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Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Off

Change History

17 October 2017: Clarify APARs for BPM versions
17 October 2017: JR58405 replaces incorrect APAR JR57478
18 May 2017: original document published

*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.

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Document Information

Modified date:
15 June 2018

UID

swg22000253