Security Bulletin: WebSphere Application Server Java Batch shipped with IBM Security Access Manager for Enterprise Single Sign-On is vulnerable to an XML External Entity Injection (XXE) vulnerability (CVE-2021-20492)

Security Bulletin

Summary

IBM WebSphere Application Server is shipped with IBM Security Access Manager for Enterprise Single Sign-On. Information about a security vulnerability affecting IBM WebSphere Application Server has been published in a security bulletin.

Vulnerability Details

CVEID: CVE-2021-20492
DESCRIPTION: IBM WebSphere Application Server 8.0, 8.5, 9.0, and Liberty Java Batch is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 197793.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197793 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L)

Affected Products and Versions

8.2.1, 8.2.2

Remediation/Fixes

Principal Product and Version(s)	Affected Supporting Product and Version	Affected Supporting Product Security Bulletin
IBM Security Access Manager for Enterprise Single Sign-On 8.2.1	IBM WebSphere Application Server 8.5	Security Bulletin: WebSphere Application Server Java Batch is vulnerable to an XML External Entity Injection (XXE) vulnerability (CVE-2021-20492)
IBM Security Access Manager for Enterprise Single Sign-On 8.2.2	IBM WebSphere Application Server 8.5	Security Bulletin: WebSphere Application Server Java Batch is vulnerable to an XML External Entity Injection (XXE) vulnerability (CVE-2021-20492)

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

27 May 2021: 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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Document Information

Modified date:
30 May 2021

Initial Publish date:
27 May 2021

UID

ibm16457573

Tips

Security Bulletin: WebSphere Application Server Java Batch shipped with IBM Security Access Manager for Enterprise Single Sign-On is vulnerable to an XML External Entity Injection (XXE) vulnerability (CVE-2021-20492)