Security Bulletin: IBM Maximo Asset Management, IBM Maximo Manage in IBM Maximo Application Suite and IBM Maximo Manage in IBM Maximo Application Suite as a Service may be affected by XML External Entity (XXE) attacks (CVE-2021-33813)

Security Bulletin

Summary

IBM Maximo Asset Management, IBM Maximo Manage in IBM Maximo Application Suite and IBM Maximo Manage in IBM Maximo Application Suite as a Service may be affected by XML External Entity (XXE) attacks.

Vulnerability Details

CVEID: CVE-2021-33813
DESCRIPTION: JDOM is vulnerable to a denial of service, caused by an XXE issue in SAXBuilder. By sending a specially-crafted HTTP request, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203804 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Affected Product(s)	Version(s)
Manage Component	8.2, 8.3, 8.4
Manage Component in IBM Maximo Application Suite as a Service	8.4
IBM Maximo Asset Management	7.6.1.3
IBM Maximo Asset Management	7.6.1.2
IBM Maximo Asset Management	7.6.1.1

Remediation/Fixes

See Workarounds and Mitigations.

Workarounds and Mitigations

A configuration to prevent xml external entities from being resolved is provided. Use the following steps to ensure that the vulnerability is addressed:

1. Go to the System Properties application and search for mxe.int.resolvexmlextentity. If it is not present, add it.

2. Ensure the value is set to 0. This is the secure setting.
3. If needed, save and perform a Live Refresh.

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

13 Jul 2022: Initial Publication

*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.

Document Location

Worldwide

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Tips

Security Bulletin: IBM Maximo Asset Management, IBM Maximo Manage in IBM Maximo Application Suite and IBM Maximo Manage in IBM Maximo Application Suite as a Service may be affected by XML External Entity (XXE) attacks (CVE-2021-33813)