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Security Bulletin: Remote code execution vulnerability within Jackson JSON library affects IBM Business Process Manager (CVE-2017-7525)

Security Bulletin


Summary

Due to a deserialization flaw withinin Jackson JSON library IBM Business Process Manager is vulnerable to a remote code execution vulnerability.

Vulnerability Details

CVEID: CVE-2017-7525
DESCRIPTION: A deserialization flaw within the Jackson JSON library in the readValue method of the ObjectMapper could allow a remote attacker to execute arbitrary code on the system. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/134639 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

- IBM Business Process Manager V8.5.7.0 through V8.5.7.0 Cumulative Fix 2017.06

- IBM Business Process Manager V8.6.0.0


Note: A fix for IBM BPM V8.6.0.0 Cumulative Fix (CF) 2017.12 is available even though IBM BPM V8.6.0.0 CF 2017.12 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 8.6.0.0 CF 2017.12. 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.
- JR58835 in the package IBM(R) Business Process Manager <Advanced | Standard | Express> 8..."

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR JR58835 as soon as practical:


For IBM BPM V8.6.0.0 (released 2017.09)

For IBM BPM V8.5.7.0 through V8.5.7.0 Cumulative Fix 2017.06

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

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

Change History

12 February 2018: initial version published
13 February 2018: information about IBM BPM V8.6.0.0 CF 2017.12 fix added

*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.

Internal Use Only

Advisory ID    10663
Product Record ID    106442

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Document Information

Modified date:
15 September 2022

UID

swg22012395

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