WebLogic High-Risk Vulnerabilities (CVE-2020-14841, CVE-2020-14825, CVE-2020-14859) Threat Alert

WebLogic High-Risk Vulnerabilities (CVE-2020-14841, CVE-2020-14825, CVE-2020-14859) Threat Alert

November 6, 2020 | Mina Hao
oracle

Overview

On October 21, 2020, Beijing time, Oracle released Critical Patch Update (CPU) for October 2020 that fixes 402 vulnerabilities of different risk levels.

The WebLogic Server Core component is prone to three severe vulnerabilities with a CVSS base score of 9.8, which are assigned CVE-2020-14841, CVE-2020-14825, and CVE-2020-14859 respectively.

These vulnerabilities are related to T3 and IIOP protocols and allow unauthenticated attackers to execute code remotely via the Internet. T3 and IIOP protocols are used to transmit data between WebLogic and other Java programs. The default WebLogic installation automatically enables the console, which, in turn, enables the T3 protocol by default. IIOP allows access to remote objects in the form of Java interfaces, which is enabled by default. Reference link:

https://www.oracle.com/security-alerts/cpuoct2020.html

Affected Versions

  • CVE-2020-14841
  • WebLogic server 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0
  • CVE-2020-14825
  • WebLogic server 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0
  • CVE-2020-14859
  • WebLogic server 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0

Solution

Oracle has released patches to fix these vulnerabilities. Affected users should visit the official security advisory link to download related patches as soon as possible and apply them as indicated in the readme file to ensure long-term effective protection.

Note: Official patches of Oracle can be downloaded only by those with a licensed account of the software. Such users can use that account to log in to https://support.oracle.com to obtain the latest patches.

Mitigation:

If users cannot install the latest patches for the time being, they can disable the T3 and IIOP protocols to protect against the vulnerabilities:

For more information, see Oracle’s official security advisory at the following link:

https://www.oracle.com/security-alerts/cpuoct2020.html

Statement

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