CVE-2018-2894 Code injection in WebLogic Server

What is CVE-2018-2894?

CVE-2018-2894 is a critical code injection vulnerability in Oracle Weblogic Server, published on 18 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS - Web Services). Supported versions that are affected are 12.1.3.0, 12.2.1.2 and 12.2.1.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Which versions are affected by CVE-2018-2894?

It affects 1 product.

Products include Oracle Weblogic Server.

How do I fix CVE-2018-2894?

No fix has been published for CVE-2018-2894 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2018-2894 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-2894 exists.

Public exploit code: 1 Nuclei template and 4 proofs of concept on GitHub.

Other vulnerabilities in Oracle Weblogic Server

• CVE-2020-14750 Oracle WebLogic Server Remote Code Execution Exploited Critical 9.8
• CVE-2020-14882 Oracle WebLogic Server Remote Code Execution Exploited Critical 9.8
• CVE-2020-14644 Oracle WebLogic Server Remote Code Execution Exploited Critical 9.8
• CVE-2020-2883 Oracle WebLogic Server Unspecified Exploited Critical 9.8
• CVE-2020-2551 Oracle Fusion Middleware Unspecified Exploited Critical 9.8

All Oracle Weblogic Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-h624-pqg4-29mh.