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saintSAINT CorporationSAINT:9870FA2AA27A04C7E50DC7E0A2A344D0
HistoryMay 27, 2020 - 12:00 a.m.

Oracle WebLogic Server BadAttributeValueExpException deserialization

2020-05-2700:00:00
SAINT Corporation
download.saintcorporation.com
47

0.967 High

EPSS

Percentile

99.7%

Added: 05/27/2020
CVE: CVE-2020-2555

Background

Oracle WebLogic Server (formerly BEA WebLogic Server) is a Java web application platform.

Problem

A Java object deserialization vulnerability in WebLogic allows unauthenticated remote code execution by sending a serialized **BadAttributeValueExpException** object over the T3 protocol.

Resolution

Apply the patch referenced in Oracle Critical Patch Update Advisory - January 2020.

References

<https://www.oracle.com/security-alerts/cpujan2020.html&gt;

Limitations

Exploit works on Oracle WebLogic Server 12.1.3.0.0, 12.2.1.3.0, and 12.2.1.4.0 on Windows.

Platforms

Windows