Deserialization of Untrusted Data in Oracle WebLogic Server - CVE-2020-2883
Published: May 1, 2020 / Updated: January 7, 2025
Vulnerability identifier: #VU27477
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-2883
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Oracle
Affected software:
Oracle WebLogic Server
Oracle WebLogic Server
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized T3 Protocol data in the Oracle WebLogic Server. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2020-2883
Install updates from vendor's website.