WebLogic

WebLogic Console HTTP Remote Code Execution Vulnerability (CVE-2020-14882) Protection Solution

November 16, 2020

Overview

The Critical Patch Update (CPU) for October 2020 released by Oracle contains a high-risk WebLogic Consoleremote code execution vulnerability (CVE-2020-14882).

The vulnerability can be triggered without authentication and has an extensive impact.

Unauthenticated attackers might construct special HTTP GET requests to exploit this vulnerability to execute arbitrary code on the affected WebLogic Server.

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

oracle

November 6, 2020

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.

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WebLogic Remote Code Execution Vulnerabilities (CVE-2020-14625, CVE-2020-14644, CVE-2020-14645, CVE-2020-14687) Threat Alert

August 7, 2020

Overview

On July 15, 2020, Beijing time, Oracle released a Critical Patch Update (CPU) for July 2020 that fixes 443 vulnerabilities of different risk levels.

The WebLogic Server Core component is prone to four severe vulnerabilities with a CVSS base score of 9.8, which are assigned CVE-2020-14625, CVE-2020-14644, CVE-2020-14645, and CVE-2020-14687 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.

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WebLogic Remote Code Execution Vulnerabilities (CVE-2020-2883 and CVE-2020-2884) Protection Solution

May 19, 2020

Overview

Oracle released Critical Patch Update (CPU) for April 2020 that fixes multiple vulnerabilities of different risk levels, including two critical ones (CVE-2020-2883 and CVE-2020-2884) with a CVSS score of 9.8 that allow unauthenticated attackers with network access via T3 to compromise vulnerable Oracle WebLogic Server. Successful exploitation could result in takeover of Oracle WebLogic Server, hence remote code execution.

The two vulnerabilities that exist in the Core component of WebLogic Server could be exploited without authentication or additional interaction. Since the T3 protocol is enabled by default on the WebLogic console, the two vulnerabilities can cause an extensive impact. Affected users are strongly advised to apply protection measures as soon as possible for risk aversion.

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WebLogic Remote Code Execution Vulnerabilities (CVE-2020-2801, CVE-2020-2883, and CVE-2020-2884) Threat Alert

May 4, 2020

Overview

On April 15, 2020, Beijing time, Oracle released Critical Patch Update (CPU) for April 2020 that fixes 397 vulnerabilities of different risk levels.

These vulnerabilities include three critical ones (CVE-2020-2801, CVE-2020-2883, and CVE-2020-2884) that target Oracle WebLogic Server with a CVSS score of 9.8.

These vulnerabilities allow unauthenticated attackers with network access via T3 to compromise vulnerable Oracle WebLogic Server. Successful exploitation could result in takeover of Oracle WebLogic Server, hence remote code execution. (more…)

Weblogic WLS Component IIOP Protocol Remote Code Execution Vulnerability (CVE-2020-2551) Security Alert

January 29, 2020

Overview

In January 2020, the critical patch update announcement CPU (Critical Patch Update) officially released by Oracle, a remote code execution vulnerability (CVE-2020-2551) in the IIOP protocol of Weblogic WLS component was announced. (more…)

Weblogic High Risk Vulnerability Threat Alert

November 1, 2019

Overview

Recently, Oracle fixed two high-risk vulnerabilities in Weblogic (CVE-2019-2890 and CVE-2019-2891)  in its October critical patch update.

References:

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

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WebLogic Remote Code Execution Vulnerability(CVE-2018-3245) Threat Alert

October 22, 2018

Overview

On October 16, local time (early morning on October 17, Beijing time), Oracle officially released the October (third quarter) Critical Patch Update (CPU), which fixes a July (second quarter) CPU patch. The WebLogic remote code execution vulnerability (CVE-2018-2893) has not been fully fixed. The newly fixed vulnerability is assigned CVE-2018-3245. (more…)