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Rewterz Threat Advisory – CVE-2020-9484 – Apache Tomcat code execution

Severity

High

Analysis Summary

Apache Tomcat could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unsafe deserialization when the server is configured to use the PersistenceManager with a FileStore. By sending specially-crafted input, an attacker could exploit this vulnerability to execute arbitrary code on the system.

Impact

Execute arbitrary code

Affected Vendors

Apache Tomcat

Affected Products

  • Apache Tomcat 7.0.0
  • Apache Tomcat 8.5.0
  • Apache Tomcat 9.0.0.M1
  • Apache Tomcat 7.0.103
  • Apache Tomcat 8.5.54
  • Apache Tomcat 9.0.34
  • Apache Tomcat 10.0.0-M4
  • Apache Tomcat 10.0.0-M1

Remediation

Upgrade to the latest version of Apache Tomcat (7.0.104, 8.5.55, 9.0.35, 10.0.0-M5 or later).

http://tomcat.apache.org/

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