Staying Safe in Times of Cyber Uncertainty
Check Point Advisories

Oracle Fusion Middleware WebLogic Server Insecure Deserialization (CVE-2020-2883; CVE-2020-2546; CVE-2020-2798; CVE-2020-2801; CVE-2020-2884)

Check Point Reference: CPAI-2020-0332
Date Published: 4 May 2020
Severity: Critical
Last Updated: Sunday 28 November, 2021
Source:
Industry Reference:CVE-2020-2546
CVE-2020-2798
CVE-2020-2801
CVE-2020-2883
CVE-2020-2884
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? WebLogic Server 10.3.6
WebLogic Server 12.1.3
WebLogic Server 12.2.1.3
WebLogic Server 12.2.1.4
Vulnerability Description An insecure deserialization vulnerability exists in the Oracle WebLogic Server. The vulnerability is due to the lack of input validation by the servlet. A successful attack could result in the execution of arbitrary code on the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Oracle Fusion Middleware WebLogic Server Insecure Deserialization (CVE-2020-2883) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Oracle Fusion Middleware WebLogic Server Insecure Deserialization (CVE-2020-2883)

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