high
8.2
CWE
611
Advisory Published
CVE Published
Updated

CVE-2021-20453: XEE

First published: Mon Apr 19 2021(Updated: )

IBM WebSphere Application Server 8.0, 8.5, and 9.0 is vulnerable to a 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: 196648.

Credit: psirt@us.ibm.com

Affected SoftwareAffected VersionHow to fix
IBM WebSphere Application Server Feature Pack for Web Services<=9.0
IBM WebSphere Application Server Feature Pack for Web Services<=8.5
IBM WebSphere Application Server Feature Pack for Web Services<=8.0
IBM WebSphere Application Server Feature Pack for Web Services>=8.0.0.0<8.0.0.15
IBM WebSphere Application Server Feature Pack for Web Services>=8.5.0.0<8.5.5.20
IBM WebSphere Application Server Feature Pack for Web Services>=9.0.0.0<9.0.5.8

Remedy

https://www.ibm.com/support/pages/node/6445171

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2021-20453?

    CVE-2021-20453 is considered a medium severity vulnerability due to its potential for exposing sensitive information.

  • How do I fix CVE-2021-20453?

    To fix CVE-2021-20453, update IBM WebSphere Application Server to the latest available version that resolves this issue.

  • What is an XML External Entity Injection vulnerability in CVE-2021-20453?

    An XML External Entity Injection vulnerability allows attackers to manipulate XML data to extract sensitive information or consume system resources.

  • Which versions of IBM WebSphere Application Server are affected by CVE-2021-20453?

    CVE-2021-20453 affects IBM WebSphere Application Server versions 8.0, 8.5, and 9.0 up to specific patch levels.

  • Can CVE-2021-20453 be exploited remotely?

    Yes, CVE-2021-20453 can be exploited by a remote attacker without requiring authentication.

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