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redhatcveRedhat.comRH:CVE-2020-9484
HistoryMay 20, 2020 - 11:25 p.m.

CVE-2020-9484

2020-05-2023:25:22
redhat.com
access.redhat.com
25

0.922 High

EPSS

Percentile

99.0%

JSON

A deserialization flaw was discovered in Apache Tomcat’s use of a FileStore. Under specific circumstances, an attacker can use a specially crafted request to trigger Remote Code Execution through deserialization of the file under their control. The highest threat from the vulnerability is to data confidentiality and integrity as well as system availability.

Mitigation

Users may configure the PersistenceManager with an appropriate value for sessionAttributeValueClassNameFilter to ensure that only application provided attributes are serialized and deserialized. For more details about the configuration, refer to the Apache Tomcat 9 Configuration Reference <https://tomcat.apache.org/tomcat-9.0-doc/config/manager.html&gt;.

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0.922 High

EPSS

Percentile

99.0%

JSON
Related for RH:CVE-2020-9484
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