CVE-2020-14859: Oracle WebLogic Server T3 Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Oracle WebLogic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the T3 protocol. Crafted data in a T3 protocol message can trigger the deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account.
Other sources
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2020-14859?
CVE-2020-14859 has a critical severity rating due to its ability to allow remote code execution without authentication.
How do I fix CVE-2020-14859?
To mitigate CVE-2020-14859, apply the latest security patches provided by Oracle for affected versions of WebLogic Server.
What products are affected by CVE-2020-14859?
CVE-2020-14859 affects various versions of Oracle WebLogic Server, including 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0.
Can CVE-2020-14859 be exploited remotely?
Yes, CVE-2020-14859 can be exploited remotely, allowing attackers to execute arbitrary code on vulnerable installations.
Is authentication required to exploit CVE-2020-14859?
No, authentication is not required to exploit CVE-2020-14859, making it particularly dangerous.