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Security Bulletin: IBM Tivoli Application Dependency Discovery Manager is vulnerable to Denial of Service (CVE-2019-4720)

Security Bulletin


Summary

This security bulletin addresses the Denial of Service (DOS) vulnerability that has been found to impact Websphere Liberty in IBM Tivoli Application Dependency Discovery Manager.

Vulnerability Details

CVEID:   CVE-2019-4720
DESCRIPTION:   IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available memory. IBM X-Force ID: 172125.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172125 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
IBM Tivoli Application Dependency Discovery Manager 7.3.0 (7.3.0.3 - 7.3.0.7)

Remediation/Fixes

Directions for interim efix application:

  • For TADDM 7.3.0.5 and 7.3.0.6 environment:

               Check the websphere version installed using any of the below three commands:

  1.  $COLLATION_HOME/external/wlp/bin/server version
  2.  $COLLATION_HOME/external/wlp/bin/productInfo version
  3.  cd $COLLATION_HOME/external/wlp; cat README.TXT |head -1
  • If Websphere version output is “8.5.5.8”, then please first apply the efix of WebSphere 20.0.0.1 which was released earlier and can be found at below link:

          https://www.ibm.com/support/pages/node/5693217

          Then proceed to apply the below interim efix efix_WLP_20001_InterimFix_FP7200218.zip of websphere.

  • If Websphere version output above is “20.0.0.1” then apply the interim efix efix_WLP_20001_InterimFix_FP7200218.zip directly.

  • For TADDM 7.3.0.7 environment:

              The websphere version has been upgraded to 20.0.0.1 in 7.3.0.7 but as a precautionary measure, please check the version before application of any fixes. With version 20.0.0.1, the interim fix efix_WLP_20001_InterimFix_FP7200218.zip can be applied directly.

The interim efix details are as follows:

Fix VRMF APAR How to acquire fix

efix_WLP_20001_InterimFix_FP7200218.zip

 7.3.0.5 - 7.3.0.7 None Download eFix

Note: Before TADDM 7.3.0.5, Java 7 was used and the upgraded Liberty version 20.0.0.1 requires Java8. Hence, no eFix can be provided for versions before 7.3.0.5.

Workarounds and Mitigations

For customers on TADDM FixPack 3 or FixPack 4, recommendation is to upgrade to a later version and then follow the steps mentioned above.

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

Change History

27 Mar 2020: 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:
22 October 2020

Initial Publish date:
27 March 2020

UID

ibm16200504

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